Satsukare summary:

Yūta Kiryū is an abusive man who raises his hands to women. One day when they're on a date, Yūta shows violence toward his girlfriend as usual, but unexpectedly, life is turned around in an instant. His girlfriend dies and while fleeing the scene, he encounters a group of serial murderers. He finds himself repelled by their "values" but is nonetheless pulled into their world. The manga features an array of criminal types including men who commit domestic violence, a murderer-rapist, a cannibal, and a necrophiliac. Who do you want to be killed?