For a few selected ones, Hikigaya 'Hachiman' has shared his secret with. For the rest of the world however, everything is still the same as it has always been. For the resident loner, moving a single chess piece can have serious consequences. But he isn't afraid of dirtying his hands, not anymore. Especially if the end justify the means...

Everybody knows Hikigaya Hachiman, the self-proclaimed 'King of loners', who agreed against his will to help the Service Club with the requests of Sobu High's students. But as he starts little by little to be a bit more appreciated by a few people, a question soon arises: How much do they REALLY know Hikigaya Hachiman? SI/OC (Story currently under revision, no beta reader).