The witch introduces herself as Akane Senri, a third-year student. After telling her about the girl with the red ribbons, Akane gives Kotarou three shikigami to protect him from her, and Akane has him join the occult research society in exchange. However, Akane is skeptical about his paranormal experiences, but if Kotarou is able to prove that paranormal phenomena exist, she agrees to his request to touch her breasts. To help him in his efforts, Kotarou gets Kotori to join the occult research society. Also in the club is Chihaya Ohtori, a girl who recently transferred into Kotarou's class. Kotarou gets a younger student he knows named Sizuru Nakatsu on the disciplinary committee to help out with the occult research society's club activities. As a result, Sizuru's friend and class representative of Kotarou's class, Lucia Konohana, joins in their activities so as to keep watch over Sizuru and protect her from Kotarou whom she dislikes.