Why I Quit Being the Demon King

I don’t understand the hate it’s a 6/10 at least, it’d be higher if they took it a bit more seriously, first of all they started outside of the underworld and without any clear explanation or motive, and I seriously don’t understand why they made the “hero” fight in his underwear, it isn’t funny at all and is lowersing the stars, overall it’s just meh, they could have taken it more seriously but they didn’t, the art is the only thing saving this and i’d give the art a 10/10 but if this didn’t have the art i’d be a 3/10 since the story is all over the place and is kind aweird, the mc becomes goofy at times and it’s just weird, I don’t know how to explain it. The mc barely ever fights, and when he isn’t fighting he acts like ace ventura’s ‘the mask’