Joon-woo is a passionate fireman who always pursues danger. Hyun believes rational judgement is the only way to save people in danger. The first day...
Park Kyung-won, who aspired to become a pilot since a young age, enrolls at an aviation academy in Japan. There she meets a charming exchange student...
Young-Hoon works for his mother’s restaurant, but he prefers hanging out with his friends. He then meets Yeun-ah, a tough lady that works in a room...
Na-nan has known best pals Dong-mi and Jung-joon since childhood, and now the trio shares the ups and downs of their turbulent single lives together....