HE IS THE WHAT!?!?!?
THE DAMN CLIFFHANGER (╯°Д °)╯╧╧
Comment with spoilers that answers your question: http://www.mangago.me/home/mangatopic/4205278/
I recommend reading the novel
https://www.readlightnovel.org/only-i-level-up
I think it was between chapter 85-90 or something (=・ω・=)
Whoa..... just whoa man....