Mayaka Ibara is introduced, and Hōtarō solves another mystery regarding a book regularly borrowed from the library for a short amount of time, which is actually used by the Art Club for drawings. As they could not find the past anthologies from the Classic Literature Club in the library, Eru is disappointed because she wants to make an anthology for the upcoming Culture Festival. Hōtarō is awakened by Eru's phone call the next day, and as he meets up with her in a café, she admits to having a confession to make.