Thanks to Noriko's scheming, Kotoko and her father move back in to the Irie home. Noriko is delighted, and tries to talk Kotoko into dating Naoki, but Naoki goes out on a date with Matsumoto instead. Sudo senpai has a crush on Matsumoto, so he and Kotoko collaborate to stalk the date. On the other hand, Kinnosuke is misled to think that Sudo has taken Kotoko on an "adult" date, and goes looking for Kotoko ...