Established relationship/ friends to . . .

Depressed Suguru x comforting friend.

In a universe where Suguru Geto never went rogue and killed people, but instead, he deals with moral issues and a deeping, aching depression

His insomnia kicks him in the ass, the only way he can sleep is if he's so drunk he passed out or after 6 days and by then he's so irritable no one wants to be around him.

He is overall messed up psychology and needs his friend to help him out.