I'm Not a Brave Man, so Why Is the Little Devil so Anxious?

"God is harmful. Billions of creatures have been harmed by war. Only a brave man from another world named Lance can save the overall situation and save the world from fire and water." What what? Save the world? It's so boring. Uncle Lance doesn't care whether the world is destroyed or not. You are lucky if you are saved. You are even luckier if you are not saved. Just go to a better world. "Don't you feel guilty for being such a capable person but being so undisciplined? Tens of thousands of creatures died for your momentary pleasure?" Oh, that's your pleasure. As for why I want to fulfill the wish of the little ghost devil and rush back to my original world? You can't tell anyone, because there's a stupid girl with a pink marshmallow head waiting for me. Gods? I'm so hot! This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.