如今，Sangwoo由于性欲旺盛而患有勃起功能障碍和早泄。 然后有一天，智恩的倡议被送往治疗中心，治疗师不过是老情人惠兰。 过去互相纠缠的相佑和惠兰决定继续接受治疗。 Hye-ran通过加强下半身训练，按摩，性感舞

Sang-woo is suffering from erectile dysfunction and premature ejaculation, because he is worn out from Ji-eun's strong sexual desires. Then, one day, Ji-eun sends him to a treatment center and the specialist is no other than his ex-girlfriend, Hye-ran. They bicker about past things, but in the end agree to start treatment. Hye-ran manages to bring back Sang-woo's sexual desires with lower body exercises, massages, sexy dances and mental therapy. On the day he is discharged from the center, Sang-woo and Hye-ran share a last kiss, but end up wanting each others' bodies...