Seinen, Action, Adventure, Fantasy, Romance, Isekai
Roy, a plain and unremarkable B-rank adventurer, takes in a boy who has been kicked out of the hero's party. But the boy was actually a "girl" and a "genius"!? A cohabitation fantasy life begins to unfold as the daily life of a middle-aged man who is actually the "strongest" and a former "that kind of guy" starts to become more colorful!
