Keishin

Keishin is the slash ship between Shin Tsukimi and Keiji Shinoji from the Your Turn To Die fandom.

Chapter 1
When Keiji found Shin was unconscious in the Hidden Room, he made sure to immediately check if he was okay.

During the Main Game, Keiji asks Sou what lie he has to tell them next in a sarcastic manner.

Chapter 2
At one point, Keiji runs to Kanna to get back the laptop Q-taro traded her. They find Kanna, but Shin also appears. Keiji demands the laptop back, and Shin claims he has some control over it, being the first one to find it, then reveals he has a charger. Keiji mentions that they don't know if Shin's on their side or not, and claims that they've never seen his collar since he always wears a scarf. Shin offers to give the laptop back if Keiji trades 50 tokens, which would allow Shin to buy Keiji's personal info, the latter seeming reluctant to let happen. Shin says that it's fine if Keiji instead just gives the 50 tokens to Sara, attempting to provoke Keiji into doing so. Keiji does not say anything, refusing him. Shin mockingly apologizes for teasing Keiji and shows him he indeed wears a collar.

For the Final Attraction, Shin and Keiji both placed high enough in the token rankings to be safely trapped inside the green cube.

Much later on, the second Main Game starts. Shin discloses his role as the Sacrifice and insincerely apologizes to Keiji, saying he didn't feel comfortable letting him take initiative.

Eventually Keiji asks Sou to tell them the real reason that he shared the laptop with everyone, and Sou reponds that Keiji's such a suspicious individual. The two enter a state of equilibrium. After Sara breaks it, Keiji concludes that in addition to wanting tokens and access to the Sara folder, he wanted to control the Sacrifice as he liked. Sou shares his theory that Keiji and Sara were working together, which is why Sara's Sacrifice could be traded away even if Sara didn't do the trade herself. Shin goes on to suggest what roles everyone else is, and suggests they vote for Kanna, before Keiji interrupts him. Keiji says it's been a while since he's hated someone this much, and reveals that he teamed up with Q-taro and the outcome was very different from what Sou thought.

Once the group is trying to figure out who is "Shin Tsukimi", everyone defends themself in some way, saying their name is their real name. Sou says that their name was written at the Prize Exchange, but Keiji notably reacts to that, and finds it strange he would say that since they only had pictures displayed at the Prize Exchange. Sou, realizing he slipped up, can't say anything in response, and Keiji asks Sou what he's afraid of.

Finally comes the time to vote and the decision is between Shin and Kanna. Despite supposedly hating Shin so much, Keiji votes for Kanna, causing Shin exasperation and pain.

If Sara votes for Kanna, after her execution, Shin swears he'll kill every single person who killed Kanna.

Chapter 3 (Shin lives route)
While the participants prepare to go to the next floor, Shin says how it was too bad that Kanna didn't even get the Sacrifice card so she'd have a chance at escaping with Shin. Keiji laughs at Shin, saying that Kanna would never pick him, she'd pick Sara to escape with. At that remark, Shin shouts angrily, but Keiji tells him to quit telling lies. Keiji acknowledges that Shin was strongly driven by his own feelings to save Kanna, yet everyone obstructed him from achieving so. He says Shin must hate him and everyone else. Shin says during the Main Game, he thought Keiji wanted him to die so bad. Keiji responds by saying "Well... it's different now."

Quotes
"It's been a long time since I've hated somebody this much..."

- Keiji about Shin in the second Main Game

"You said you'd tell the truth, right? To defeat Gashu together... We're your allies. Try trusting us... Sou. No... Shin Tsukimi."

- Keiji to Shin in the second Main Game

"Keiji...!! No! He can't die like this...! I need to...!!"

- Shin upon Meister saying Keiji must face punishment for rule-breaking

Fanon
On AO3, Keishin is the most written ship for both Keiji, Shin, and the Your Turn to Die fandom. The reason most fans ship the two together is because many fans believe they seem "compatible" due to the fact when you (Sara) first meet both of them, they seem the most suspicious and untrustworthy due to the cold look they both prescribe. Another reason the fandom ships them is because many fans believe Keiji could help Shin with his past trauma, as most fan fictions featuring the two make it in Keiji doing so.

Fans also believe Keiji could balance out Shin's quiet and kind of secluded, follower persona with his more leader, always taking action, trying to protect everyone at all costs personality. While still not being quite known by the fandom due to the small amount of determination in shipping from the Your Turn To Die fandom. The part of the fandom that does acknowledge shipping as a factor of the game though, favors it quite a lot due to it being very popular and "reasonable" in the small shipping community.

Fandom
FAN FICTION

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Variations

 * Keialishin refers to the ship between Keiji, Shin and Alice Yabusame
 * Trauma Trio refers to the ship between Keiji, Shin and Sara Chidouin