Dong-goo and Yeon-hee are losing their love and affection for each other because of their insensitivity to sex and sexual preference due to being married for a long time. Then one day, Dong-goo hears the story of sex master Wang-nan from his sex partner Yoo-gyeong and finds her for a different sex. After many twists and turns, the two, who found Wang-nan's disciple Min-yong, began training to receive the essence... see more