Responses
Try this one
http://www.mangago.me/read-manga/prison_lab/
Was reading it a while back
Yes thats the one
Thank you so much!
So I didn't remember much but I'll try my best to explain it
So the cover has a boy with a mask on
The story goes around a guy that I think got bullied by a girl
He discovers the deep web and found like a place where you can lock a person up and torture him
Please dont question my sanity. I've just finished the manga bastard and then remembered this manga