Ryo Morinaka is a university student and works part-time at a bar. He is bored with his daily life and exists in a state of torpor. One day, his friend Shinya Tajima brings the owner of a host bar over to the place where Ryo Morinaka works. Shizuka Mido is the owner of the host bar. Soon, Ryo Morinaka begins to work for Shizuka Mido at the members only host bar. He feels embarrassment initially, but he fulfills the desires of women and develops a sense of purpose.
Ono Yasuomi is a cram school teacher with poor communication skills. He hopes to get married but doesn't know what ordinary means and feels awkward on dates with women. He asks Kasumi, a student who knows lots of trivia about romance, to teach him the meaning of ordinary.
Fumika, a culinary school student, receives an invitation to a mysterious tasting party from Shizuka Izu, a charismatic culinary researcher, and happily tries to attend. However, she is attacked from behind by someone and loses consciousness. The place where she woke up was a closed ruin. There were four men and women who were also invited to Shizuka.
