This is one of those stories where the mc is all powerful but lets people weaker than him give him crap all the time. I hate those stories. The body of an alpha but the personality of a beta.
Hmm, to make a comparison...think of this story as similar to " I Become Strong In The Other World And In The Real World" or whatever it's called. Bullied fat mc, is a humongous p*ssy despite his strength, most of the students at his school are shallow trash bastards...the real difference being...
Oi, demon king. You think his place is some convenient place to drop off your f*cking problems? Huh? You gonna come whining to him every time you stub your damn toe or something? You deal with this annoying shit!!