High school student Kimishima Souma develops feelings for his teacher Kazama Rinne and decides to write her a love letter. The teacher tears it up in front of the class, humiliating him. Discouraged, the boy visits the school nurse, Mizuki Hazuki, to talk it over. The nurse gives him some pills and proceeds to have sex with him, but when the teacher finally walks in on the action, the real story begins.