เรื่องย่อ: The first ever intimate experience! Seon-mi (Koo Ji-sung) hands a name card to Joo-hee (Ha Na-kyeong) who is to get married, saying that she ll be able to feel sexual satisfaction like never before. Joo-hee experiences something new and starts expressing her rising emotions to her fiance despite the time and place. Unlike Joo-hee who is enjoying this, Min-woo is getting tired. He tries to satisfy her to the best of his abilities and even asks for advice from friends but it s not enough. What is that place that has her upside down like this?