Ouji-sama no Otawamure

Aoi works as an office employee tasked with handling individuals who have accidentally passed through a gate to another world. She dreams of a conventional married life. A demon prince from that world becomes infatuated with her, though he shows his affection by declaring he wants to make her his pet. The story is a comedic workplace romance involving Aoi's confusion about the other world's customs and the demon prince's interest in learning about Earth.