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Please note that this page is currently in construction, and thus there are very few tropes listed, some of them in need of additional sorting.The Trinity is a fiction series written by a member of Beast's Lair forum called "Kieran."The series is a retelling of Harry Potter books with the titular character, alongside two other ones readers didn't really care about, being replaced by three characters (Shirou EMIYA Archer, now known as Shirou von Einzbern; Takara Aozaki Daughter of Shiki and Ciel Aozaki from Tsukihime, with her name unchanged; Jester, with his name becoming Galen Salvatore) from one of his earlier works. With Neville Longbottom being the one of whom the prophecy speaks after an infant Harry Potter's death at the hands of Lord Voldemort, they are trying to fix what is left of the world they knew from books and movies, to have a place to live.There are currently six complete books, with seventh being written, out of seven planned, in order:
Cannibalism Superpower: After being turned into a vampire by Kohaku poisoning her with Unicorn Blood, Hermione call borrow the abilities of those she drinks from. Because she drinks from Galen she can still use magic and drinking from Kohaku gave her a Metamorph Magus abilities.
Chekhov's Gun: Instead of letting Dumbledore destroy the philosopher's stone, the Trinity decided to deposit it in Hermione's Gringott's vault, with nobody outside of their group knowing they have it, which later cures him of it and turns him into an Dire Wolf Animagus.
Cool Sword: Takara's sword is virtually a holy weapon, capable of smiting evil and even conjuring rains and cleaving Fiend Fyre.
Curb-Stomp Battle: The attempted raid on the Eizenburn Manor ended in a complete failure. This is why you do not mess with the family of the Magus Killer
Cursed with Awesome: From practical perspective, this is what Galen's lycanthropy is most of the time. But until they were able to give him improved Wolfsbane potion based on Snape's notes, physical suffering when he changed outweighed any potential bonuses. And then there's the fact that it will make him die from the strain before he reaches his fifties when magicals live for so much longer. At least until they cured him in Book 7.
Even more so in case of Lord Voldemort, who had gained partial lycanthropy after Galen's blood was used to revive him in the 4th book, resulting in the power of his unforgivable curses being increased. And since he had Snape with him, he didn't have to wait long for the cure.
As of sixth volume, Hermione got fedunicorn blood, with horrifying results. Her new abilities allowed her to first notice mental tampering on Galen, and later penetrate Occlumency-protected mind to learn the location and defenses of a place where kidnapped Takara was held. And what was to be done to Takara and how to circumvent it, as well.
There is also Galen's Thunderbolt charm, which had almost become classified as the fourth unforgivable curse, and before he had perfected it, was very dangerous to the user because he tried to summon true lightning and most of the energy wasn't lost over a long distance as it would from the sky.
Darker and Edgier: The whole series is a tad darker than the original. Surprisingly, nobody had died until the sixth volume.
Enemy Without: In Book 7, Dumbledore's corpse is possessed by the Horcrux ring, much like the Diary intended to do, creating a second Voldemort that decides that there's only room enough for one of them.
Faking the Dead: Trelawney, Sirius, and Galen all have their deaths faked at one point or another.
Fate Worse Than Death: Aoko inflicted this on Kohaku, stating that while her body and mind were destroyed her soul was mostly intact...right until she got her hands to the schemer.
Father, I Want to Marry My Brother: Ilyasviel chose Shirou to be her "chosen" one. It had been a major problem for them in the fifth book, since they could not marry if there was no proof that they weren't related, and if that had not happened Ilyasviel would've died from the backslash of her Veela nature.
In Spite of a Nail: Happens sometimes when the universe wants to shed their reality rewrite, and always causes things to turn much worse then they were. For example, because Snape died early there was nothing to stop the rot from consuming Dumbledore when he put on the ring, killing him and allowing the ring to possess him like the diary had intended to do Percy and Ginny, making there 2 Dark Lords competing with one another.Every year is bad, every other year is worse.
Frame-Up: In book 5, Snape tries to frame Galen for a werewolf attack on Ron on the night of a full moon, knowing that every knew he hated him. It partially fails as the gang decided to move him to somewhere more secure as a safety measure and the wounds weren't cursed, but it does out Galen as a werewolf and cost Snape Dumbledore's support.
Shin used Polyjuice potion to change into Ginny Weasely and then murdered Draco to frame it on her in front of witness so, if questioned they can honestly say they saw her kill him.
Holy Hand Grenade: The Thunderbolt Charm has a high-level of purity (possibly being divine thunder) so it serves as a bane of vampires. The sword enchanted by it did much the same.
Necessarily Evil: From destroying the Acromanculas to bombing Knockturn Alley in Book 7, Chapter 15 and blaming it on the Death Eaters, a lot of what the heroes do constitutes evil and claim lives but are ultimately for the benefit of others.
Out-Gambitted: The chessmasters of the series do it constantly, but a crowning moment goes to Neville who, upon finding out that Dumbledore arranged for Galen to be slipped Love Potions, arranged to have Amelia Bones take him down.
Peggy Sue: A variation of this, the Trinity had prior knowledge of Harry PotterCanon when they first arrived, and thus were able to use it to their advantage when this universe was still similar to the one they knew. It later bit them back, when the world diverged too greatly from the one they knew for them to do anything with this knowledge.
Their prior knowledge of both Harry Potter canon and the history of their original world still allowed them to have good guesses about the significance, motivations and allegiances of a number of people. Like the Gray Lady of Ravenclaw. And leads them to make an assumption later proven wrong, about Horcruxes, namely that Nagini was never a Horcrux in the first place.
Pragmatic Hero: Kiritsurugu, of course, as well as the Trinity and the Scarlet Seven. Ranging from using guns to burning down the Acromancula nests preemptively.
Pyrrhic Victory: Voldemort's attempt at the prophecy was foiled, his numbers reduced greatly as well but it cost Kiritsurugu his fingers on a hand that can't be reattached, several hundred lives of mundanes, witches and wizards alike.
Pyrrhic Villainy: Amelia Bones did so much damage to the Ministry and killed herself before Voldemort could completely take it over that the losses he took barely were worth it and would set him back months.
Red Herring: The Triwizard Tournament cup in the 4th book. Following it allowed Snape to get blood necessary to resurrect Tom Riddle.
Take a Third Option: In the third book, the Trinity had to either allow Peter Pettigrew to run away, or to kill him. They staged Sirius' escape, enabling him to kill Pettigrew in his human form, and thus both denying Riddle Pettigrew's help, and clearing Sirius' name.
You Can't Go Home Again: None of the Trinity, nor Ilyasviel can go back to their home world. Because of that, they have to work hard to save the world if they want to have a place to live. Rin can theoretically go back with the Kaledostick, but decides against it.