Kurushin

Kurushin is the slash ship between Naomichi Kurumada and Shin Tsukimi from the Your Turn To Die fandom.

Canon
The real Kurumada died in his First Trial before he could meet Shin, however, an AI of him was uploaded into a doll of him. For the Murderer Sub-game, Kurumada is paired with Shin as his support. Upon finding this out, Kurumada laughs and says it's good to meet Shin. Shin simply resonds with a "same here". As partners, they can't go too far apart from each other, or else the Dummy partner's head with pop off. Soon after introductions, an Obstructor appears, and the group works together to defeat it. If Kurumada tries to punch the Obstructor's armour, he'll fail to do any damage and hurt himsef. Shin comments that Kurumada is rather rash, and he'll hurt his wrists doing that.

When Kurumada manages to find a blue book, he opens it and starts reading a random part, with some sort of entry about Shin. Kurumada finds the book creepy and wonders if it's a diary. The group finds out, according to the title, it's called "Shin Tsukimi AI Test Data", and Shin says it's probably a log made by Midori. Shin also wonders if that's the reason why Midori got close to him. After a moment of silence, Kurumada says that Shin really has to talk about what he knows sometime soon, but Shin doesn't see why he should have to do that. Kurumada says that the others are his allies, so there shouldn't be any keeping secrets, but Shin coldly says he doesn't have any allies.

Eventually, the group confronts Midori in order to tag him and win the tag game. Shin suggests that they back Midori into a corner, and asks for the Dummies to help, but Kurumada is hesitant, and asks what will happen to them, the Dummies, if Midori dies from the tag game. Shin asks what Kurumada's talking about, and that it's just a time-wasting tactic, but Kurumada can't just believe that. Shin has nothing to say in response. Shin decides to try and catch Midori on his own then, but Kurumada stops him the second time he attempts this. Shin tells Kurumada to let go of him, and Kurumada tells Shin that he doesn't really want to do this either. Shin becomes frustrated by Kurumada.

Later on, the entire group goes to discuss with Maple to get the ID card from her, so they all hold hands with their assigned partners in front of the Discussion Room doors. Kurumada seems annoyed holding hands with Shin, and Shin asks Kurumada to control his grip, since it's hurting his hand. They find out that only one pair can enter at a time, so Sara and Ranmaru go in first, but eventually the rest of them join them when Maple becomes angered and destroys the door, unintentionally creating an entrance. The group finds out that they need to understand Maple's emotions and become her friend in order to reconcile with her. Kurumada cries out that there's nothing that's more of a pain to deal with than a woman's heart, and Shin agrees, saying this could be tough.In the end of the battle, Kurumada gets injured in the torso by Maple.

After the group completes the conduit game in order to save Ranmaru from tag, Shin tells Kurumada to rest in the charging room, noticing that the electric shocks wore Kurumada down a lot. Shin goes on to say that Kurumada would just be a hindrance if they brought him along. Kurumada accepts that and can't believe that he's getting sympathy from Shin.

Later on, If Maple was not reconciled with, Kurumada's injuries are much more severe and he ends up dying just as he is the last Dummy to enter his coffin for the Banquet. Shin comments that Kurumada was unlucky to peter out at the very last moment, which makes Q-taro tell Shin not to say it like that. Shin says that it was lucky he died of external wounds, and not his battery, which means it might be possible to bring Kurumada back.

Fanon
Kurushin is not as popular of a ship in the Your Turn To Die fandom. Shin and Kurumada may never even meet if Shin died instead of Kanna Kizuchi, and their interactions are notably smaller and more bitter than those between Kurumada and Kanna. Similarily to Keishin and Alishin, Kurushin may be liked for the dynamic between a timid and weak character such as Shin, with a muscular and more agressive character such as Kurumada. That also plays into the visual charm of the ship, and may include the fact that both characters have blue hair. Some people can see Shin and Kurumada being good friends outside of the Death Game, and some headcanon that Shin would trust Kurumada to babysit Kanna when he can't look after her. Kurushin rivals the aformentioned ships Keishin and Alishin, as well as Kurusaka.

Fandom
FAN FICTION

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Trivia

 * Kurumada and Shin are next to each other in the image showcasing the.
 * Kurumada has the second highest win rate, at 9.9%, while Shin has the lowest, at 0.0%.