Kodaka meets 10-year-old teacher Maria Takayama, who was tricked by Yozora into becoming the Neighbors Club's advisor. Later, an effeminate-looking boy named Yukimura Kusunoki joins the club so he can study Kodoka and become more manly. Later, Kodoka saves a scientific girl named Rika Shiguma after she collapsed in the science room. Wanting to repay him in a somewhat sexual manner, Rika joins the Neighbors Club, where it is revealed she is also fascinated with curious dirty magazines.

As Kodaka has a dream about his childhood friend, who he didn't get to say goodbye to before he moved, the Neighbors Club makes plans to go to a karaoke box. After feeling they are being cheated by the pricing system, Yozora and Sena end up in separate rooms while Kodaka and others share one. After the karaoke, Sena tells Kodaka that her father is interested in meeting him, which makes Yozora feel jealous.