Help please

I need your help finding this horror manga basically all these people get kidnapped and they're all really bad people and did something bad in the real world and when they wake up they're all in this weird place that punishes bad people basically and from what I can remember the main character is a guy and I'm pretty sure he can't remember what he did wrong but I could be wrong since I did read this a long time ago there's also higher ups who are supervising this it's almost like a game because there's other people from the outside world watching all this happen as entertainment and they wear masks like really weird masks so you can't see their face and it was just very unsettling especially the art style does this ring a bell to anybody I also remember a character with pink hair that was like a higher up or something in the later chapters and it was a girl