The next year of school has come, and Kosuda is now in her second year as she reiterates her plan to acquire 100 fuck-buddies in high school (despite the fact that she has trouble getting her first one). After seeing some old friends in her class, like Kosuda, Takeshita and Mayu, she also finds that she has a new rival for attention: Kyouka Kanejou, the exchange student from America who seems to have a permanent "bishie sparkle" around her wherever she goes. She's an attractive lady, a model, good at schoolwork, cooks well, and otherwise appears to be a perfect girl as she threatens Yamada's status as the most popular girl in school.
However, Kyouka still holds a grudge from losing the popularity contest last year to Yamada (see Ep. #3), so she schemes to take away everything that makes her popular (and even plays a song on the piano about her plan from revenge). The next day at school, just as Kosuda works up the nerve to ask Yamada out again, Kyouka butts in and offers to take Yamada home for a little chat. Yamada is intimidated at first when she finds out that Kyouka lives in what appears to be a giant castle filled with servants, and stares at the (anatomically correct) statues in the entrance hall.
The two of them eventually walk up to Kyouka's room, where Kyouka tries to find out who Yamada's boyfriend is so she can steal him from Yamada with her charm and then dump him a month later just to spite her. Yamada can't bring herself to admit she has no boyfriend (despite her erogami demanding that Kosuda counts as one), so she replies with a challenge that Kyouka should find out on her own.
After Yamada leaves her home, Kyouka reveals that her one true love is actually her older brother (a bishonen with permanent sparkles around him, like his sister), who is currently studying at Harvard. However, the fact that Kyouka happens to have a giant hidden shrine dedicated to him even makes her head maid uncomfortable. As Kyouka says that she wants her brother to take her virginity, the maid monologues that if that's her wish, then she should stay chaste.