I am looking for an isekai manga with skewed gender ratio.

I don't remember many details, but I think it is about a male college student who died (?) and met a goddess who accompanied him to a new world. Then he finds out he is in a parallel world with skewed gender ratios.

The guy gets a job to wipe the sweat from the chests of women right after their work.

The guy and the Goddess share an inn room to sleep. She was masturbating in order to entice him to have sex with her. He ignores her.

well i don't know which manga you are referring to but you should try parallel paradise https://www.mangaupdates.com/series/pqwvjr4/parallel-paradise