Etsuro Kurosu faills getting into a university and becomes a hikikomori. One day, he tries to hang himself from a hook on the wall in his apartment. He fails, but…

Hyakkaou Private Academy. An institution for the privileged with a very peculiar curriculum. You see, when you’re the sons and daughters of the wealthiest of the wealthy, it’s not athletic…

A shy high schooler in Kyoto meets a man claiming to be his future self, who tells him he’s hacked into the past to save their first love.