MHA: The Rage Of A Test Subject

A child has fallen into All For One's hands since a young age and after his quirk awakened, used as a test subject until the heroes save the child... However, the child isn't exactly hero-like, neither is he evil.... he is the grey in this black and white world. ---- My exams are over, had to make some extra tests so I decided to make a Fan-Fic cause I was bored and ngl, MHA is going mad right now. This FF will be about a Ruthless, cold yet loving and caring MC. "Enemies are enemies, young, old, men, women, it's all the same" "This society doesn't accept flaws, neither do they accept killing villains including the ones that killed innocents, if you don't cut the root of the problem, it will remain just that, a problem" Never wrote before and english isn't my first language so hook me up with some advice or things y'all want. ....... The cover isn't mine, it was sent to me by a simping friend, if the original owner wants me to remove it, just message me, o yeah, I naturally don't own MHA either. [WARNING] This FF has R-18 scenes, Harem and cold-blooded killing but i think 99% of the people only care about the first 2 warnings.