Park Jae-Won (Ji Chang-Wook) is an architect with a passionate and honest personality. He enjoys the small streets in the city and collecting different things. He does not forget the woman who stole his heart and disappeared. Lee Eun-O (Kim Ji-Won) works as a freelancer marketer. She takes a trip without making specific plans. While on her trip, Lee Eun-O meets Park Jae-Won in a strange place. She introduces herself as Yoon Sun-A and pretends to have a free spirit, which is a totally different personality from her real self. She falls in love with him.