そういうコンセプト

Having lost his passion for work, "Kouhei" is considering his resignation. He hits it off with "Rion", who works as a member of the character cast in the concept cafe his coworker invited him to. From that point onward, he'll start showing up regularly as a customer there. However, on the way to the cafe, he begins to realize that Rion is getting harassed by the other cast members of the concept cafe... One evening, the two of them unexpectedly meet at a park. Listening to her story, he learns that she was freeloading at her friend's place and she had just gotten kicked out. Coming from a place between kindness and secret intentions, Kouhei invites her to stay at his place. Rion readily accepts his offer, and from there begins their puzzling lifestyle living together... (Source: FANZA, translated)