Janu attends a book club meeting expecting to see a photograph Hana promised him. Hana explains that she sent the other club member, Nokana, on an errand to retrieve supplies, leaving them alone. Hana expresses frustration regarding her past history with the principal and insists on a "trust exercise" before revealing the photo. She asks Janu to close his eyes and allows her to blindfold him.
Hana then climbs onto Janu, who is seated and restricted to the chair with tape, and initiates a sexual encounter. She identifies them as "Pervert Pals" and explains that she wants to use Janu to reach orgasm because she has been unable to do so on her own. As the encounter progresses, both Janu and Hana experience pleasure, but when Hana reaches her climax, she tightens her grip on Janu to prevent him from reaching his own. She justifies this by stating she does not like being "blackmailed" and that the act was intended solely for her own gratification.
Afterward, Hana reveals that she obtained Janu's phone number from Dayai without his knowledge and sends the promised photo to his phone. They clean up just as Nokana returns. The event concludes with Janu reflecting on the strangeness of the book club and his growing desire to explore further encounters of this nature.