Haven't been reading the Mermaid Princess' manga (at the last page) in ages due to the infrequent updates... I forgot the name of it. Her husband's also an Isekai'd, OP man. I recommend you to read it btw
Imagine being in a strange new world (well, though you know it from gaming, I suppose ...), not knowing anyone, and with no prospect of going home - and then encountering someone from "home".