Yōto Yokodera, a perverted schoolboy, winds up being nominated as the track and field club's president by Tsukushi Tsutsukakushi due to his inability to be honest about his perverted nature. Later that day, his friend tells him about a statue known as the 'stony cat' that allegedly granted his wish to remove his impure thoughts. Wanting to be more honest with his feelings, Yōto travels up to the hill where the stony cat lies, where he meets a girl named Tsukiko Tsutsukakushi, who also wants to wish on the stony cat so her emotions will not show easily. As they both make their wishes, a sudden flash happens, and the two of them discovers one of their belongings they had brought, a belt and a meat bun, have disappeared, but they do not think much of it. The next day, as Yōto comes across a popular transfer student Azusa Azuki, he finds himself openly stating his perverted thoughts to her, earning him the title of the "pervert prince" among his classmates. He later comes across Tsukiko, who has suddenly found herself unable to show any emotion, coming to realize this is the work of the stony cat. Realizing they need to find the people who their traits were transferred to and convince them to wish them back to their original owners, another bashful encounter leads them to deduce that Azusa now possesses Yōto's trait of holding in his true feelings. Putting this to the test, Yōto puts on a public scene of wishing to become Azusa's loyal dog, which causes Azusa, unable to go against the urge to hide her honesty, to ultimately give in.