
Food for ur brainヾ(❀╹◡╹)ノ~
Aside from being d mc which is why he didnt die, remember dat he apparently skilled af when it comes to sex.
In short he didnt get killed cuz d killer dude got hooked on d mcs god level skills ε=ε=(ノ≧∇≦)ノ
Remember how he was complaining about how the long haired dude wasnt tight enough? And how he practically orgasms everytime he does it with d mc?
I rest my case (●'◡'●)ノ

Lol, so I'm not the only one who got that impression? XD It definitely looked like he was *totally* taken off guard by *that*, at the very least, even if he did plan for everything else
Though all things considered, he seemed to also have some sort of larger-scale plans for the MC to begin with - since he obviously knew a lot more about him than he let on from the start, and alluded in one of the previous chapters that he thinks of him as the "main character", whatever the hell that means. He also then spoke about "creating a charming villain" during that one speech before the students, and explicitly mentioned experiencing "abuse", "poverty", and "betrayal" as an ideal way of forming said villain - which is a suspiciously accurate summarization of the things Ah-in went / is going through, during his childhood (abuse, poverty), and now with his current boyfriend (betrayal). So it almost felt to me like he was maybe planning to groom Ah-in into a killer (Hannibal style)...
BUT was then taken off guard by Ah-in's god level skills in bed, so I guess the entire thing is becoming way more, er, *personal* to him than he had planned as well...
So d dude kills his targets after fucking them (=・ω・=) ahaha nc one(⌒▽⌒)