This chapter opens with a conversation between a student named Chiba and his friend Aoi. Chiba is a good friend of Aoi's, and he and Aoi often go to parties together. Aoi invites Chiba to his house for a "study party," and Chiba agrees to go along with the plan. When the party is over, Chiba asks Aoi if he would like to have sex with him, and the two of them agree to do so