I'll Castrate You Mia challenges Akemitsu to a duel with castration as the penalty for losing. It transpires Mia is a foreign student and Kagura her mischievous attendant who causes Mia’s breasts to fall into Akemitsu’s hands during the duel. Mia passes out from embarrassment and faces a penalty from Kagura’s book of lewd penances. Akemitsu decides her penance is to lend him the book to help him repress his lechery. Mia mistakenly thinks he wants sex and enters his room prepared to have sex with him, only to be humiliated to learn he wanted the book. Kagura traps them in a store room where Mia blurts out a warning to stay away in case he arouses her. This leads to a confession that her family have their own curse of lechery, so she came to the all-female temple to repress it, only for Akemitsu to show up as a temptation. Realising they are alike they agree to support each other in rejecting lust through the penances in Kagura’s book. Yuzuki forgets about her rescheduled marriage meeting, on which the temple is relying to stay open, so Akemitsu rushes to get her there on time but they end up trapped in the back of a truck. Still determined to make it Yuzuki decides to use the temporary privacy to change into her yukata, which requires two people.