Momonga goes to become an adventurer, disguised as a human knight, in order to make his name Momon famous. The end goal is that if his name is famous enough, other people who got isekai'd with him could find him more easily. But this time, there's bad guys!
I'll be honest, it's been forever since I read volume 1 so it took me a minute to catch up, but overall, it still reads like a standard isekai with an overpowered protagonist. The only difference is that Momonga has to hide the fact that he's a skeleton. I will say that the reading flow felt... a little off? Like there was a page missing here or there. Maybe I was reading it too fast? I dunno.