Wise Sex Life

Woo-hyun is a boyfriend who is infinitely kind to Woo-hyun, both outside and at home. Young-joo is happily dating to Woo-hyun, but today they ends the date with a quarrel bacause Woo-hyun got a calls from Na-hee, a gorgeous woman who comes to his house. What is Nahee’s true identity? Woo-hyun was actually in a romantic relationship.