@MisterXiado os paid vacation not a thing in the US ? Damn dude...
Dudes I think you are forgetting that the moment otherworlders kill people the system has some kind of effect on them, so if he kills the no-balls dude thinking he is otherworlder he might go on a rampage an kill lots of people and that would send him on a shit trip full of shit, but it would be a hell of an arc if he did do it.
On the other side it's possible that cause his system is bugged it trigger his batshit mode, after he killed the otherworld dude last arc, when he fights otherworlders(or thinks he is)