Himari has ended up living with her fiance's unemployed brother, Tatsuo. Although she is confused by Tatsuo's different appearance and personality from her fiance, she accepts the fact that he will leave once he graduates from massage school and gets a job. However, she learns that Tatsuo's graduation is in jeopardy due to his lack of practical experience. "Shall I be your massage practice dummy?" Taking advantage of Himari's weakness of wanting him to leave, Tatsuo uses aphrodisiacs and aphrodisiac aromas to take away her resistance, and brings her to an unwanted climax with his obscene treatment...