MC has enough Agility to kick his ass and make it look like martial art while he is semi-distracted.
There you go, a perfect excuse of self sacrifice and at most he would be a hero to the town he is living in.
This guy is a dumbass and a waste of life for letting these girls become traumatized by something like this.
Dropping this.
Some authors need to realize that the whole "I need to not stand out with my OP skills" trope isn't good.
Sure you won't have a peaceful life you would have as a normal student, but at least shit like this wouldn't be an issue.
So much less horrific things happening to people, all because of this trope.
Hopefully the MC dies to some monster that you KNOW will show up in his world.
Hell, I bet demon lord will revive in his world.