To-il (Krystal Jung) gets pregnant while dating her 19 years old tutoring student. Her mother and step-father are not pleased with the situation, so she decides to track down her biological father whom she has not seen for 15 years. The journey to find him brings back memories of her birth father and her step-father. When she realizes that she wasn't ready to face her father, she runs into him. Meanwhile, her step father, Tae Hyo is disappointed that she left them to find her birth father. In her absence, the father of baby disappears. When the two fathers meet, they end up embarking on a quest to find him. And the quest unfolds a series of playful happenings.