Is there an existing Japanese isekai novel that has an MC which can be considered normal in a realistic sense, no harem, without the ridiculous OPness and those weird hateful would-be heroines who are better be thrown to a hoard of goblins or sharks as food?
Isekai ni Kita Boku wa Kiyoubinbode Subaya-sa Tayorina Tabi it's an adventure slice-of-life novel with a little OPness like him becoming a C-rank adventurer within 2 months.
thank you, my mistake, I didn't realize english volumes surpassed fan-translations already. many non-action isekai: Cooking with Wild Game Cook of the Mercenary Corp Parallel World Pharmacy Seiun wo Kakeru Risou no Himo Seikatsu