Chisato is the humblest and most beautiful girl at university, all the guys are crazy about her. Sato is no exception, he has been in love with her for a long time, but can't express his feelings because Chisato is constantly dating someone else. Sato is so in love, that even when he decides to puke in the toilet once or twice between couples, he doesn't give up thinking about the object of his adoration. Suddenly she arrives in the bathroom, but not alone, together with her classmate Miura, who is currently her boyfriend. They show up for intercourse, their relationship is a little rough, it was a sin not to spy, but when you see someone there is a high probability that they see you, it's awkward. On the other hand he is teased by Miora for his fondness for Sato which made him feel as though he was almost hopelessly in love with her. He is not so easy on the eyes, nor is he modest at all.