Ryohei secretly admires Maki, his wife's friend. One day, after fighting with his wife, Ryohei goes to a box host club out of spite. He encounters Maki working there as a hostess and, after some inner turmoil, has her relieve him. Ryohei becomes engulfed in an unfamiliar pleasure. Maki, who has not had nighttime activities with her husband, gradually opens up to Ryosuke.
