Kugieshin

Kugieshin is the familyship between Kugie Kizuchi and Shin Tsukimi from the Your Turn To Die fandom.

Canon
As far as is known, Kugie and Shin have never met. However, Kugie knows of Kanna's biological family. Kugie wishes that Kanna could meet her real family one day, which in combination with Shin's wish to meet his sibling, causes Shin and Kanna to meet each other in the Death Game. Kugie also got involved in the Death Game by getting kidnapped alongside Kanna, but she died in her First Trial before she could meet Shin.

Fanon
Kugie and Shin never interact, but since they are both siblings to Kanna, they are considered by extension to be siblings as well. The two are mainly linked through Kanna, and a lot of fanon (and canon) content about the two revolves around Kanna. Some think that Shin eventually tries his best to emulate Kugie, or to fill the role that Kanna needed after Kugie died. Kugie and Shin actually appear to share a lot of similarities between each other, and are thought to parallel each other.

Kugie and Shin are both cruel to Kanna, but then warm up to her, and become very overprotective. Also, Kanna's flashback to when she ran away from home parallels when Sara found Kugie's phone. In Kanna's memory, Kugie found a kid who she misinterpreted to be bullying Kanna, even though he wasn't, and chased the kid away to protect Kanna. In Shin's case, he found Kugie's phone with a hateful message that he thought Sara had left for Kanna, even though she didn't, and he then changed it to something positive to protect Kanna. In the face of death, Shin and Kugie both put Kanna's life above their own. Kugie gives Kanna the key in their First Trial so Kanna will definitely be safe, and Shin begs everyone to vote for him in the Second Main Game instead of Kanna, so she can still live.

It is considered how Shin and Kugie might interact if Kugie were to have survived her First Trial, and how she'd react to learning Shin and Kanna are biological siblings, especially if she forms a negative opinion of Shin. In Chapter 3-1B's Kanna lives route, it was revealed that Kanna experienced positive hallucinations of Shin and Kugie. From this, many scenarios arose where Shin and Kugie are spirits or ghosts and are able to talk to each other. In some cases, they cheer on Kanna together, or act as a comedic duo of sorts. Some other scenarios explore what could happen if Kugie's family also adopted Shin. Kugie and Shin are often depicted as having a bit of a rivalry, (often centered around Kanna,) but still getting along well. Kugie also seems to act more as the older sibling than Shin.

Fandom
FAN FICTION

Variations

 * Kizuchi Family refers to the ship between Shin, Kugie, and Kanna Kizuchi