Comments of chapter undefined of Multiverse Simulator

What kind of personality is this? Does the MC live in an abandoned house for five years, find a portrait of the previous owners, and somehow feel indebted to them? That didn't even make sense, how does this guy live in society? What would happen if someone treated him politely, like he walks down the street knowing that there was someone who made an effort to build it? You took a Chinese MC's personality of repaying kindness and multiplied it by 100, with that precedent the MC should sacrifice his life for any small act of kindness. (Google translate)