Guys, our MC killed the strongest dragon in the world, the "Godslayer Dragon", in 27" 42 seconds and felt unsatisfied. That's when he was at his weakest with his tier 1 mark. Right now, he's not even full grown or close to his previous strength, but he's progressing much faster than in his past life. How the hell are you even complaining about our MC unable to take demons of any kind seriously? Our MC was a planet buster with a tier 1 mark, but wants to be a universe buster. We won't see him take anyone seriously unless it was as strong as the godslayer dragon or galaxy buster.