Nagatoro is still torturing Senpai, laughing at his choice of manga and at how he talks to girls, and trying to get a reaction out of him by having him put her stockings on her.
Nagatoro forgets her phone in the club room. Senpai tries to bring it back to her but gets himself into a situation. The next morning, a school marathon is held.
Pursued by Gamo and Yoshi who aim to preserve Senpai's virginity and Sunomiya and the President who aim to protect and fight for Senpai's love, Nagatoro and Senpai set off on their date to the aquarium.
