Cute demon boy makes me wet: on to the next review. For real though, I like stories where the MC comes back from somewhere all OP and causes havoc, this is pretty much that. Comedy is above average too. After 10,000 years surrounded by demons anyone would gain a wonky moral compass. So MC makes some questionable albeit funny decisions. We're not actually told what all of his powers are which keeps you guessing. Not exactly plot heavy but what's there works well enough and the gate/combat stuff is just not generic enough for MC to do the heavy lifting in keeping your attention.
Player Who Returned 10,000 Years Later