why the seed of the hanged is such a good ficseries

For starters, in El semen de los ahorcados, StrixAlluka puts all the barricade boys and some more characters studying at Hogwarts - but the group is SO DIVERSE as to include a romantic trans girl (Jehanne Prouvaire, Hufflepuff) - an Afro-Caribbean cancer patient then survivor (Lesgle "Bossuet" - secret identity Chewblacka after he drinks hair-growth potion) - a Korean boy whose education papa's pressure gave him Münchhausen syndrome (Jo-Lee AKA Jo-Lee-lee-lee-lee), aside from the usual suspects trio of the leader and his second and third in command (also Grantaire appears to be of Moorish descent, and not only a werewolf and an addict). Éponine is also part of the group, and she is more mature since she has younger siblings (Azelma and Gavril "Gavroche") to take care of and their parents are for lifetime in Azkaban (owooowoo) ---

There's also a large Enjonine-Montponine-Éposette subplot about whom she will come to terms with; 'Parnasse is the prefect of Slytherin and as Enj's evil counterpart a key player, here Éponine takes an Avada Kedavra aimed at Cosette, who does not return Éponine's love, and dies in Cosette's arms.

Cosette has two stepdads - Valvert is canon! Although it took a while for Javert to mellow up to Valjean and say I do.
Furthermore Count Jean de Satigny and Lady Cecily Alistair make appearances - and even become husband and wife during the climax! ---she was previously the fiancée of a Courf who is here team captain and head chaser for Hufflepuff and flirts with Cosette (much to Marius's chagrin) - also he has a pet puffskein called Petit-Chou (who is soooooooo kawaiiiii)

The premise of the whole series can be summed up as Utena at Hogwarts with the cast of Les Misérables and a few guest stars from other series. Interestingly, the title comes from an observation made by various characters, the 12th major arcana on Tarot, and the leitmotif of characters (mainly Grantaire and Marius) saying they are "as useless as the semen of hanged men" -- when Courfeyrac actually points out, and even experiments ejaculating and nearly hanging himself in the forbidden forest -- that that is how mandrakes are made (the original Spanish title outright quotes Sabina's "Así estoy yo sin ti": inútil como el semen de los ahorcados...)

There is much to take in for instance about the leading cast - the trio in charge are born under the three air signs, which just seemed to fit their personalities...

Name: Paragon Ganymede Enjolras

House: Slytherin

Hair Colour: golden blond

Eye Colour: Icy blue

Patronus: phoenix

Star Sign: Aquarius

Purity of Blood: almost pure-blood, one quarter veela (his maternal grandmother was a veela whom her husband captured, but who left her husband and children to be free once more)

Siblings: none

Extracurricular activities: Leader of revolutionary squad AS-SORTED, duelling club, prefect of Slytherin until drugged and discredited by Montparnasse (reclaims his prefect's badge in his final year).
Sexual orientation: aro-ace

Three Sizes:  (chest),  (waist),  (hips)

Amortentia Scent: Epsom salts

Pets: Artemis, female carrier eagle-owl

Dressed at the ball as: Apollo

Major Arcanum Codename (at the barricade in the final arc): Judgement

Name: Jules-François Combeferre

House: Ravenclaw

Hair Colour: nutbrown

Eye Colour: hazel

Patronus: wild ferret

Star Sign: Gemini

Purity of Blood: muggle-born

Siblings: many -he is a middle sibling, the fourth of seven

Extracurricular activities: right-hand man at AS-SORTED, Railway club, Hypnotism club (flexibilitas cerea as main fascination), muggle technology club, literary translation... lots of similar cliques. Quite the extracurricular enthusiast. 

Sexual orientation: gay

Three Sizes:  (chest),  (waist),  (hips)

Amortentia Scent: burning fireplace

Pets: Urania, azure tree frog (deceased of hypothermia one winter)

Dressed at the ball as: Hermes

Major Arcanum Codename (at the barricade in the final arc): Temperance

Name: Sejanus Cassio Hercule Baron de Courfeyrac

House: Hufflepuff

Hair Colour: raven

Eye Colour: black or dark chocolate

Patronus: house cat (Asian breed, like a Siamese or similar)

Star Sign: Libra

Purity of Blood: octoroon (a single muggle-industrialist ancestor, a railway baron great-grandfather)

Siblings: one younger sister, Portia Illuminata Baroness de Courfeyrac

Extracurricular activities: left-hand man at AS-SORTED, Quidditch (captain and head chaser, Number 3 of the Hufflepuff Seven), fashion club, Prefect of Hufflepuff (the Party Prefect!)
Sexual orientation: bi

Three Sizes:  (chest),  (waist),  (hips)

Amortentia Scent: triple chocolate

Pets: Petit-Chou, male neutered pygmy puffskein; Cleo (Cleopatra), seal point Siamese house cat (died and was replaced by Petit-Chou)

Dressed at the ball as: Puss in Boots 

Major Arcanum Codename (at the barricade in the final arc): The Sun

Name: René "Grand R - Grantaire"

House: Gryffindor

Hair Colour: raven

Eye Colour: hazel

Patronus: shapeless (like Neville Longbottom's) - then Enjolras with many wings full of eyes, as R's personality evolves

Star Sign: unknown

Purity of Blood: unknown (also, a werewolf)

Siblings: one older brother, Rémi (deceased)

Extracurricular activities: AS-SORTED, getting drunk, socializing, trying to impress Enjolras, duelling (an ace at duelling)
Sexual orientation: Enjolsexual

Three Sizes:  (chest),  (waist),  (hips)

Amortentia Scent: Enjolras' favourite perfume

Pets: Quaxo/Mr. Mistoffelees AKA "Poe", black odd-eyed house cat (nekomata); Merlot, male carrier scops owl (both pets at the same time).

Dressed at the ball as: Frida Kahlo (ENJ THOUGHT HE WAS A GIRL CALLED FRIDA!!)

Major Arcanum Codename (at the barricade in the final arc): The Hanged Man

Name: Éponine Thénardier

House: Slytherin

Hair Colour: raven with green tips

Eye Colour: hazel with green highlights

Patronus: weasel in autumn coat

Star Sign: Scorpio/Ophiuchus

Siblings: two younger ones, Azelma and Gavril "Gavroche," both in Slytherin and under her guardianship

Purity of Blood: pureblood (also a werewolf).

Extracurricular activities: AS-SORTED, betting on Quidditch matches, Quidditch - beater for Slytherin (left beater), astrology
Sexual orientation: bi

Three Sizes: (chest), (waist), (hips)

Amortentia Scent: petrichor (after it rains)

Dressed at the ball as: Catwoman

Major Arcanum Codename (at the barricade in the final arc): Death XIII

Name: Jehanne Prouvaire (née Jehan; trans girl who gave their male genitals to Alluka and became a real girl in order to save Enjolras)

House: Hufflepuff - Ravenclaw (changes in the final arc)

Hair Colour: Titian strawberry blond

Eye Colour: green

Patronus: bowtruckle with a flower on top

Star Sign: Leo

Siblings: none

Purity of Blood: pure-blood

Extracurricular activities: AS-SORTED, herbology club, writing romantic poems, queer pride, astronomy and astrology, Law of Signatures, telling children fairytales through kamishibai and puppets, literary translation 

Sexual orientation: pan

Three Sizes: (chest), (waist), (hips)

Amortentia Scent: pompom roses

Pets: flowering plants

Dressed at the ball as: Jehanne of Arc

Major Arcanum Codename (at the barricade in the final arc): The Lovers

Name: Myung Jo-Lee "Jo-Lee-lee-lee-lee"

House: Gryffindor

Hair Colour: raven

Eye Colour: black (almond eyes)

Patronus: octopus

Star Sign: Virgo

Siblings: one living younger sister, the other deceased

Purity of Blood: muggle-born

Extracurricular activities: AS-SORTED, helping kappas at infirmary, fussing about his health and trying out new remedies at potions and herbology
Sexual orientation: bi

Three Sizes: (chest), (waist), (hips)

Amortentia Scent: lavender

Dressed at the ball as: Dr. Caligari's assistant

Major Arcanum Codename (at the barricade in the final arc): The Hermit

He also has the Joestar star on his neck: Jo-Lee Joestar?

Name: Wilbur Lesgle (AKA Bossuet, secret identity Chewblacka)

House: Slytherin

Hair Colour: none (is bald from chemo)

Eye Colour: black with golden highlights

Patronus: bald eagle

Star Sign: Cancer

Purity of Blood: pure-blood

Siblings: none

Extracurricular activities: AS-SORTED, duelling club
Sexual orientation: bi

Three Sizes: (chest), (waist), (hips)

Amortentia Scent: four-leaf clovers

Pets: do the kappas count? Also Chup, a stray chupacabras 

Dressed at the ball as: Mace Windu

Major Arcanum Codename (at the barricade in the final arc): The Magician

Name: Anne-Euphrasie Fauchelevent (aka Cosette)

House: Hufflepuff - Ravenclaw (changes right before the finale)

Hair Colour: golden blond

Eye Colour: greenish-blue

Patronus: skylark

Star Sign: Libra

Siblings: none

Purity of Blood: half-blood

Extracurricular activities: none (she focuses on her studies) until she is made Prefect of Ravenclaw

Three Sizes: (chest), (waist), (hips)

Amortentia Scent: her mother's lily of the valley and chestnut blossom perfume

Sexual orientation: straight

Dressed at the ball as: Psyche, in a tweaked ball gown that had been her late mother's

Major Arcanum Codename (at the barricade in the final arc): The Star (shared with Marius)

Name: Marius Pontmercy

House: Gryffindor

Hair Colour: raven

Eye Colour: greenish-blue

Patronus: blue-footed booby

Star Sign: Leo-Virgo cusp

Siblings: none

Purity of Blood: half-blood

Extracurricular activities: AS-SORTED, literary translation, rune translation
Sexual orientation: straight

Three Sizes: (chest), (waist), (hips)

Amortentia Scent: Pontmercyia flowers

Dressed at the ball as: the Nutcracker Prince

Major Arcanum Codename (at the barricade in the final arc): The Star (shared with Cosette)

Name: Caractacus Montparnasse

House: Slytherin

Hair Colour: raven

Eye Colour: black

Patronus: Arctic iceball dragon (polar nitrogen-breathing subspecies of Chinese fireball)

Star Sign: Scorpio/Sagittarius cusp, Ophiuchus

Purity of Blood: unknown

Siblings: none

Extracurricular activities: Prefect of Slytherin (after drugging and discrediting Enjolras), disciplinarian, head of duelling club, Quidditch - seeker for Slytherin, cupbearer and/or valet de chambre to Count Jean de Satigny, sadomasochism (inflicting Enj at the Satigny estate with unforgivable curses)
Sexual orientation: classified

Three Sizes:  (chest),  (waist),  (hips)

Amortentia Scent: blood

Dressed at the ball as: Loki (NOT Marvel's, but at least slightly influenced - the Loki of original Norse myths)

About the supporting cast -

• Bahorel is beater for Gryffindor (redheaded, scar over his right eyebrow) and sweethearts with its prefect Henriette, both of them are Aries, who also contrived to become the other beater on the same team in spite of her diminutive size - the two of them look like Ryuuji and Taiga from Toradora! - their respective arcana at the barricade are Justice and Strength; their respective patroni are a Hungarian horntail dragon and an Indochinese tiger (also Henriette survives). Amortentia scents? His is soil, hers is quaffle leather. He's also rivals/frenemies with Montparnasse. At the masquerade ball, he dressed up as Mr. Bear and Henriette as Rigoletta the Little Jester, characters from a Muggle toddlers' TV show. Both are Aries.
• Feuilly is a Hufflepuff and in favour of the rights of house-elves, merfolk, centaurs, etc. as being equal to humans; his arcanum is the Hierophant. His Patronus is a Glow Cloud. His Amortentia scent: sandalwood. At the masquerade ball, he dressed up as a merman to campaign for merfolk's rights. He is an Aquarius.
• Musichetta is a well-known singer/composer whom both Jo-Lee and Bossuet are in a ménage à trois with - she is a Libra, Quidditch captain and head chaser for Ravenclaw, as well as the tarot expert and the one who suggested tarot codenames for the AS-SORTED Resistance. Her patronus is a lyrebird; her arcanum the High Priestess. She has three pet male Edible Frogs in succession, adopting each after his predecessor's death, and names her pet frogs Verdi (Verdi/Verdi II/Verdi III) and trains them since egghood and they're part of the Hogwarts Frog Choir. She was a foundling raised by a circus/cabaret troupe, the same one that Javert had belonged to. Her Amortentia scent is caramel popcorn. At the masquerade ball, she dressed up like Audrey Hepburn in Breakfast at Tiffany's getup, with orange tabby Kürbis borrowed from a Ravenclaw friend. In the end she becomes Headmistress of Hogwarts as an adult, leaning on a sword-crutch, after an injury put an end to her career as a Seeker for the Holyhead Harpies.
• Azelma and Gavroche Thénardier, both in Slytherin, --- the former with middle-sibling syndrome writ large, the latter a perky young boy who, after being entrusted to Madame Rosmerta and playing pranks around Hogsmeade, as a Hogwarts firstie hangs out with his senpaitachi at AS-SORTED (where he is the youngest member). Their patroni are a weasel in summer coat and a sparrow, respectively. She is a Gemini and he is  an Aries. Gav's major arcanum at the barricade is the Fool. They dressed up as Hansel and Gretel in Bavarian outfits for the masquerade ball. Gavroche's ghost remains at Hogwarts, and crushes on the teenage Catherine Pontmercy, as revealed in the recent gaiden. Gavroche was given a wand by the Bloody Baron on his deathday, so he can use magic whilst still being a ghost.
• The kindly and well-read Jean Valjean is mostly headmaster --except in season one when he was cashiered by the Ministry and replaced by Javert, who then seggregated the students by house until Enj and AS-SORTED came around and, some time later, Valjean was reinstated--. He is a Cancer; his patronus is a snowy owl.
• Étienne-Émile Javert is also a werewolf with a VEUM (Varulv Efterlyst Utom Människogestalt) level danger brand, which has led to his existential insecurities. He is a Capricorn. Born unto a Tarot card reader single mother in Azkaban (she died in prison of her poor health and left him her deck, which he still keeps in his chest pocket) he was raised by a cabaret/circus troupe and used Tarot to get by until he was adopted by wealthy guardians. He and Valjean become partners, then exes, thoughout the second and third arc of the series, breaking up at the finale (and giving Cosette two dads!). He has no patronus: his werewolf form suffices in battle.
• Skimbleshanks is a nekomata and the disciplined conductor of the Express. He is also a telepath and living lie detector.
• Hatori Sohma is the reserved, one-eyed head doctor or Healer at the infirmary/hospital wing and a cursed sea dragon seahorse (actually, baby tatsu) animagus. His Patronus is also a sea dragon seahorse (actually, baby tatsu). He turns into the same fish (actually, real sea dragon) if he gets really stressed.
• Mayuko Sohma, née Shiraki, is Hatori's wife and childhood friend and Charms professor at Hogwarts. She and her husband take maternity/paternity leave for a year after having a baby (their daughter Kinu). Prior to that she was seen giving Charms lectures pregnant.
• the kappas are an invasive species who at first ripped out shirikodama/rectal orbs from students, then turned nurses at the infirmary (much like healthcare centre Pokémon!).
• the Count Jean de Satigny is an artistic, gay aristocrat in his autumn years, interested in fine arts and queer candid photography, erastes to his young attractive servants whom he treats in special ways (each servant turns out to be part of the promiscuous photography sessions that the count engages in), who employs Parnasse as a valet (later on, as his protégé) and Enj as a cupbearer for a while --in the rescue of Enjolras/Operation Birnam Woods arc--. Jean is handsome, fashionable, and presumably wealthy, and all the area landowners compete to go into business with him. The estate is located in a northern province, where Jean spends his fortune on fancy clothes and fine porcelain. There are naked pictures of the servants and strange sex toys in his private photography “laboratory.” Jean de Satigny is passionate about classic literature, fine art, Italian opera, ostentatious luxuries, and his kinky photography using his young attractive servants. He also owns a fluffy, adorable right-hand chinchilla (think Blofeld's cat Solomon or General Flopsy, but also Choupette Lagerfeld or Tinker Bell Hilton) called Clochette (Tinker Bell in French). Lady Alistair, whom he marries to cover up his orientation in high society, leaves him after discovering this last passion while Parnasse disabled him with a slight foxglove poisoning, and he is not seen again until Enjolras must identify his body, having just killed him in the dark with Avada Kedavra - which leads in turn to Enj's own demise at the hands of the Condesce's followers -.  The Zeus to Enj's and Parnasse's Ganymedes
• Mrs. Jarley runs a travelling waxwork and was once Feuilly's guardian. A lovable eccentric, her lifesize figure of Charles XII plays a key role as a decoy in Operation Birnam Woods
• Noirtier de Villefort is a frenemy of Marius's maternal grandfather guardian; he had a stroke and communicates by morse-ing with his left eyelids, the only body parts he can move
• Lady Cecily Alistair was Courf's fiancée for a while --- then, after the Condesce conquered everything, she became the Count's bride and wife - then at the end an Anne-of-Cleves style power figure, and Clochette de Satigny's and the Count's art collection's next owner - she gives two thirds of the collection away to charities. She came to the defense of Hogwarts after finding out her husband's dark secrets and was given the Empress arcanum. She is an Aquarius, left-handed, and enjoys pencil drawing. She is also a squib. Her Amortentia scent is charcoal.
• Her Imperious Condescension conquered the Earth of this Dimension/Timeline (Earth of the 92nd Universe) on the eve of the finale, being opposed by AS-SORTED and assisted by Parnasse and the Thénardier sisters (Gav had already joined AS-SORTED)
• Eloïse de Villefort is Noirtier's daughter-in-law, a social climber and poison expert, and Potions Master at Hogwarts. She favours Slytherins, having been in that house in her youth, and fosters competition between Gryffindor and Slytherin students. Before the final battle, she poisons herself with a cyanide pill kept in her emerald ring, when Grantaire confronts her in the Potions lab while he searches for ingredients for enough Draught of Living Death to drug a young adult male for 24 hours (which he uses on himself, due to the full moon, to wake up the next day as per canon to save Enjolras, leading to their executions). Her death is blamed on Grantaire even though she committed suicide (much like Enjolras killed the Count de Satigny and is executed for that).
• Alluka is a powerful reality warper, with the appearance of a whimsical child, who can grant wishes, yet always at a price. She is a trans girl and also caused the pseudo-gender change of Jehanne Prouvaire (when he emasculated himself and gave up his manhood and a lot of blood to heal Enjolras at the start of the initial arc). She is also the author of the story, who can break the fourth wall and appear among her characters at will...
• Charles XII was a king of Sweden who happened to look and act just like Enjolras. Mrs. Jarley keeps an effigy of him in her waxworks...
• Catherine Pontmercy is the daughter of Cosette and Marius who is a first-year student on the Hogwarts Express in the finale, accompanying her professor parents. She also gets the Star arcanum as a bookmark. In the gaiden "The Springtime of Catherine Pontmercy," she is revealed to have been sorted into Ravenclaw and to dream of becoming a fashion designer. She also has a pet puffskein called Flan.
• Kinu Sohma is the daughter of Hatori and Mayuko and prefect for Ravenclaw when Catherine Pontmercy enters Hogwarts. She makes fast friends with the younger girl, and recruits her as a personal assistant in the gaiden "The Springtime of Catherine Pontmercy," where the two of them are eager to step out of their parents' shadows. She has no desire to follow either parent's profession, but rather to concentrate on her studies. When famous aurors Juliet Butler and Jez Stukeley arrive at Hogwarts for an orientation weekend, she gets the ambition of becoming an auror.

ANON METHOUGHT THE LAWN JOCKEYS BEGAN TO MOVE - Marius, 'Ponine, and some others (including Feuilly) infiltrate the Satigny estate dressed as jockeys with Mrs. Jarley's effigy costumes, having also dressed the Charles XII effigy as a jockey in red - they intend to swap the clothes of the effigy for Enj's in order to free him from the mansion

the Count's guards think that the jockeys just moved ("must have started early")

Éponine came up with the idea from Macbeth's Birnam Woods - hence the name of the infiltration operation

SHENANINGAN - taken from shenanigan and Sharingan - this is a power that at first Courf coined...
and which consists of

story points:

1. Secession of Houses --- Javert takes the helm and attempts apartheid at Hogwarts by seggregating Houses extremely; AS-SORTED is founded by Enjolras to set things right / Kappa Invasion/Shenaningan Awakening/Quidditch Season (Hogwarts winds up using the kappas in healthcare, much like the kitchen house-elves in canon and the healthcare centre Pokémon in the Pokémon universe --Chansey evolution line, Audino, Comfey--). Solar eclipse. Ravenclaw wins the Quidditch Cup (final against Slytherin, Musichetta catches the Snitch).
2. Awakening of the Basilisk of Slytherin by Montparnasse. Defeat of a Hydra hatched by 'Parnasse in the Forbidden Forest as a decoy (by Enjolras beheading and Combeferre cauterizing); the mandrakes "sown" by Courfeyrac in the forest key to healing everyone petrified, except Cleo the Siamese ('Parnasse had destroyed all the mandrakes in the greenhouse). Enjolras' knowledge of Parselmouth key to opening the Chamber, which Enjolras and Combeferre, sole survivors (unpetrified) of AS-SORTED, enter crossdressing. With Enjolras' phoenix patronus, the basilisk is sealed inside Combeferre's Undetectable Extension knapsack, and tossed back into the bust of Salazar Slytherin - (contains World Through the Mirror of Erised mini-arc -- Cosette comes to a steampunk townhouse where her parents Fantine and Felix are pretty much alive and married; but the family is dysfunctional and the Other Cosette, her counterpart, is a pampered sociopath with orphan Éponine as whipping girl; also Marius was raised by Col. Pontmercy, who wiped out the Gillenormands, and Marius now holds the rank of lieutenant... he's sensitive and artistic, much to his commanding officer father's consternation (the Colonel doesn't know Marius is gay and sweet on this world's Courf!)... A marriage between the Marius and Cosette in this timeline has been arranged, but Cosette of the Seed universe gets swapped with the bride of the mirror universe, who prefers an independent life, on account of the latter's coaxing (like in the Goose Girl fairytale), and the "evil" Cosette makes her way to Hogwarts in Hufflepuff uniform... The barricade lads across the mirror are here male prostitutes living in a pleasure house next to the Tholomyès residence and working their way through university.) Enjolras made a prefect. Mars retrograde. Slytherin wins the Quidditch Cup (final against Hufflepuff - Montparnasse catches the Snitch)
3. Masquerade Ball, at New Year, and drugging and discrediting of Enjolras by Montparnasse, who then becomes prefect. Abduction of Ganymede ("Runnymede" as Grantaire misheard it - this becomes a running gag) - ie de Satigny making his move, spiriting Enjolras away to his estate via pink helicopter around Easter break and even one week more (when his parents wanted to send him to Durmstrang for the rest of his schooling to be more serious with his studies) /(one episode in this arc is for instance a nod to "The Seven Knots of Horus" with Courfeyrac projecting astrally and going inside Combeferre's airways to heal him from within of a severe poisoning) Operation Birnam Woods - ie freeing Enj from the Northern Provinces estate, while Parnasse has him poisoned with fugu shirako and casting unforgivable curses (except Avada Kedavra), to the point that Enjolras' sanity suffers and he is treated with rauha at Hogwarts. Music box portkey, with thestral figurine and "Pop Goes the Weasel," used as portkey to escape the mansion: Montparnasse uses to get to Hogwarts and back to the Satigny estate (still the Count's valet) spare portkey, a boater hat. Courfeyrac given a pygmy puffskein, Petit-Chou, in early autumn for his birthday. Venus transit. Hufflepuff wins the Quidditch Cup (final against Ravenclaw - Musichetta catches the Snitch, but Courfeyrac scores a lot of goals... and collapses due to exhaustion).

Diaspora Across Timelines/Universes  --- including the following:

• Courf winds up as a corrupt knight trapped in his own rusty armour in a Wizard of Oz-/Journey to the West-style universe; Enj is a naive girl here, Prouvaire a lion cub who wants to change into a lioness and lead a pack to claim her rightful throne, Bossuet is a kappa, Combeferre is the narrator, GrandR a guard/nutcracker doll, and the Condesce is the Wicked Witch of the West
• The Aubreyiad/Battle Tendency universe: steampunk floating islands and skyships à la Dragon Hunters. Combeferre is the one who winds up here as the surgeon to Captain Enjolras, looking for the counterpoison for the rings a rival captain put on his aorta and trachea, a cure that can only be acquired by confronting said enemy (it was Parnasse of course) - everyone is jacked like a JoJo's character and Enjolferre is canon OTP à la Jack Aubrey/Stephen Maturin.
• The Snow Queen Condesce universe; Enj winds up here and at first it appears like completely ordinary Hogwarts except that Enj and R are officially a couple -- the plot follows basically the Snow Queen fusion fic La Fée Verte, except that the Condesce replaces the Green Faery as "Snow Queen" and the mirror shards in eyes and hearts are present - 'Parnasse having shattered the Mirror of Erised and become its first victim
• The Wishing-Tree (arbrasouhait) universe - the Thénardier siblings sans Zelma wind up here; people look like rag dolls, the Thénardier parents still are free and have raised them right... and, during a conjunction of twin suns, Éponine competes for the title of Sower against counterparts of others (Combeferre and Joly are alchemists who make the wishing-seeds, so they don't ride but dispense the seeds and act as judges) riding on flying big cats, to sow the seeds of wishing-trees whose root systems hold the planet together. There is also a strong element of Wacky Races here (like in the Piffle arc of Tsubasa)
• The Queen-style Star Group universe - R (the one from the Seed timeline who incarnated here) is a Lefou-like fat groupy; short-haired Enj with moustache is counterpart Freddie / Courf, Ferre, Marius are counterpart Taylor, May, Deacon; the rest of the barricade lads are groupies of their group - called ROYAL, Montparnasse is this world's Jacko, in a Wonderland-themed mansion called Wonderland, with all the servants dressed as Carrollian characters--- and of course there is a lot of influence from aidoru anime, alongside Enj's terminal illness (cough of death already featured in the first appearance - he dies on the stage)

Final Conflict ----- corresponds to the "barricade subplot and nearly everyone dying" part of canon. Everyone returns to the Seed universe's Earth and a final course begins; an anti-war play is staged at Hogwarts, The Year of Great Medlars, written by Courfeyrac (his first and only tragedy) and starring him as Dauphin Francis of Valois, Combeferre as Count Sebastian de' Montecuccoli, James Norrington (Hufflepuff) as Prince Henri of Valois, and Musichetta as Caterina de' Medici. Lady Alistair marries Count de Satigny and his personal troupe puts on a separate productions The Year of Great Medlars at the Satigny estate. After the play, Enjolras loses his cool being provoked by Montparnasse, tearing off his prefect badge and claiming back the prefecture of Slytherin by force, leading to a declaration of war... Lunar eclipse.

In each arc there is also a celestial phenomenon which parallels the plot of the arc. Solar eclipse in the apartheid arc, Mars retrograde in the basilisk arc, Venus transit in the Satigny arc, lunar eclipse in the final conflict arc.

Recently there is a gaiden titled "The Springtime of Catherine Pontmercy," which reveals Catherine in Ravenclaw and follows her for a week. It deals with her developing self-confidence and assisting her best friend/mentor Kinu Sohma, who has no dreams for the future until some admirable aurors come to visit. The ghost of Gavroche frequents Ravenclaw Tower and courts Catherine, being in love with her, although him being already dead means this is a star-crossed, platonic romance. The Bloody Baron encourages Gavroche to woo his ladylove with grand romantic gestures, whilst the Thénardier lad prefers confessing his love through little pranks. Catherine and Kinu, along with Gavroche, also help the aurors try to stop Azelma and Montparnasse. The miscreants were trying to steal the Spear of Lugh from the Hogwarts vaults. The spear is recovered, but Azelma gets away and Montparnasse is impaled to death on the Spear, once it returned to him with Expelliarmus and recognised him as an unworthy wielder.

The Spear of Lugh, like the most renowned weapons in Norse myth (Mjölnir, Gungnir), is semi-sentient and returns to the wielder's hand after being thrown, like a boomerang. It was used by the god-king Lugh (the Celtic Apollo) to slay the Fomorians (a tyrannical race of cyclopes), and most probably crafted by the same dwarven smiths who made Mjölnir and Gungnir. It has electric/lightning powers, like Mjölnir, and can only be wielded by worthy wielders and reacts against unworthy ones, like Mjölnir as well.

It is revealed that, three days after Gavroche's deathday, both the ghosts and the living of Hogwarts celebrate Remembrance Day to remember the sacrifice of Enjolras and his friends.