Sawa, who came to the track and field club training camp, was frustrated with her coach, who was stricter than the others in teaching her boyfriend, who was also in the same club. Meanwhile, the coach, who had been keeping an eye on Sawa, offers her a special drink after practice. Gradually, her body starts to heat up, and when the coach, whom she hates, relentlessly attacks her sensitive breasts, she can't resist and feels it despite Kokoro...