Because the mere existence of it means the scum character is using it to rape people (both body and mind). And it's infintely more enraging to me that when the MC is aware of this he's not reacting like people are being raped and fucking execute those pieces of shit on the spot with extreme...
Coolest manga ever. I know how everyone said about the ending but the horrifying world building contrast with the characters' personalities makes this such a fun read. I like Hoaji and he believes in the cockroachness of human so the ending that they won through sheer luck or their unyielding...