Himari ended up living with Tatsuo, her fiancé’s unemployed older brother. Unlike her fiancé, Tatsuo had a completely different appearance and personality, leaving Himari confused. Still, she resolved to endure the situation, reasoning that once he graduated from massage therapy school and found a job, he would leave. However, she soon discovered that Tatsuo was struggling with practical training, putting his graduation at risk. Thinking she could speed up his departure, Himari offered, "Should I be your massage practice partner?" Exploiting her hidden desire for him to leave, Tatsuo used aphrodisiacs and arousal aromatherapy to weaken her resistance, then subjected her to lewd treatments that forced her into unwanted climaxes…