Addicting Virus - Tododeku

A fic where Midoriya learns how to villain and love crops up from strange, obscure places then leads to some dark destinations.

Or alternatively;

A hero meets a villain who becomes a virus he can't shake.

This is a slow-ish burn fic! So the yandere-ish stuff won't happen immediately(but it won't be forever tho). Also much of this fic will focus on how villain Midoriya became a villain/and his villain activities, etc