The synopsis reminds me of that one hero in hero bbs that always, always isekai'd and returned over and over to the point that he can actually evades the summon circle to ask in bbs whether getting isekai'd again is worth it.
Except on this one, the MC is isekai'd to the same isekai, so it's technically just a tad complicated time skip.
I guess I'm on board to see the conflict and stuff that MC will face before deciding whether to actually follow this.
And man, I missed Hero BBS.