I'm sorry I just realized that doesn't really explain too much. Togainu No Chi is an R-18 bl visual novel game which came out on the pc in 2005. The game has six character routes which are Arbitro, Keisuke, Rin, Motomi, Shiki and the true character route. In the game, Akira can end up with one of these characters depending on the choices you make in the game. The six characters have there own story arc within the game which explains more about the character and their reasons along with adding more details about the overall story or just adding more information on the character itself. There are four bad endings, well, five if you count Abritro route since his route is a bad ending within itself in the game. There are two bad endings for Keisuke route and two bad endings for Shiki's route. To get to play Shiki's route you must play through Abritro, Keisuke, Rin, and Motomi routes first to be able to play Shiki's route and to be able to play the true character route you must play through all of the routes to unlock him. Anyways, the anime is based very loosely off of this visual novel. Now back to Shiki, he may not be the true character route, but he is a fan favorite amoung many people who have played the game. Hopefully, this helps in some way if not then I'm sorry.
They even made an anime of it... there was no love or anything like that in it tho? Will Akira be together with Shiki (what I really hope NOT to happen).. Someone pls explain... this bl game or manga or whatever it is keeps me away from my sleep and it's like this for 2 days now... I am so confused, it's more complicated than anything I've ever seen in my life and it makes me anxious. ┗( T﹏T )┛Help ;-;