Oh look, yet another "banished from party" almost-isekai story! Let me guess: the party is arrogant towards him, eventually they realise that they needed him, most members die/leave/want him back but the party leader is really obtuse and transforms this into a shitfest, and in the meantime the MC is living a happy and fulfilling life.

...I'm still reading it - thanks for the link! (Seriously, I love this sort of story.)