Mc is fuc***, his harem of one sided lovers (he doesn't like them, they like him one sidedly) who ra** him turn back time to save him, and he forgets who they are after that or what happenned. Honestly I don't even know if he remembers that he's from earth. They (the harem) remember everything. Then the story just ends. Yep. That's it.
Like. Everything. The entire story. All for nothing. Time is just turned back. Mc forgets everything. We don't get an after story. It's just a tragedy.
I do like the novel, but the romance was my biggest problem. The MC seems to be largely apathetic towards their feelings, so it gets a little frustrating when their unrequited feelings are touched upon every few chapters