Isekai de Cheat Skill wo Te ni Shita Ore wa, Genjitsu Sekai wo mo Musou Suru ~Level Up wa Jinsei wo Kaeta~ - Vol. 3 Ch. 11 - Brave First Step

[Kampfarsch]

I think its a pretty sweet detail that even without the whole other world crap him being kind would still have gotten him invited to this school
Really most of what happened in the IRL was thanks to his own efforts, not superhuman bs