Ryouko is defeated at the match of the test with protagonist, she is made to put on an erotic underwear under the uniform.

Ryoko tries to stop thinking that it's the end just by showing, but her promise is "listen to what I say one day", so that's not all. Riding over the protagonist face in erotic underwear and trying to mess with the pussy, Ryoko crushes his face with her ass. However, the protagonist rejoices rather than dislikes, and continues to sniff the ass, and fiddles with the pussy and her ass hole. Ryoko climaxed by too much pleasure. Ryouko says to the protagonist who starts inserting there if he doesn't stop she will come to hate him but the protagonist doesn't slip out, the waist is beaten as it is intensely.