intro

Those who seem like they are perfect and wonderful, have a side which they hide from others. The side which contains evil and conflict. But who knew that one day that side would be release by no other than ??? ????????. After going insane, ??? started doing unreasonable acts. The groups slaughtered one by one. Will they be able to escape the killer or killers? Or will they be slaughtered and became a slaughtered SEKAI.