Yeon-du le pide a su mejor amiga Bora que recopile toda la información que pueda sobre Baek Hyun-jin mientras ella está en los Estados Unidos para someterse a una cirugía de corazón. Bora decide acercarse primero al mejor amigo de Baek, Pung Woon-ho. Sin embargo, el torpe plan de Bora se desarrolla en una dirección inesperada. En 1999, un año antes del nuevo siglo, Bora, que cumple diecisiete años, cae en la fiebre del primer amor.
Al enterarse de repente de que tiene una enfermedad terminal, Se-yeon le pide a su marido, Jin-bong, la absurda tarea de ayudarla a encontrar a su primer amor, y él se une a su búsqueda sin querer. A lo largo de su viaje, Se-yeon y Jin-bong recuerdan los momentos más brillantes y hermosos de sus vidas.
Su talento como conductor no tiene rival, pero su turbio pasado le impide avanzar. Si quiere empezar de cero, tendrá que arriesgarlo todo... y lo va a hacer con estilo.
Follows the coming-of-age story of a male student and two female students who share the same name, who first meet as freshmen in college. Choi Kyung Soo, who hails from Sokcho and moves to Seoul for college. Perhaps due to the pain he experienced during his high school days, Choi Kyung Soo has a hard time opening his heart to others. The confident and cool Lee Hyun Jung [A] is admired by the other students at school and is more mature than most of her peers. When she and Choi Kyung Soo meet in a stargazing club, they develop feelings for each other that they are unable to express. The hard-working and intelligent Lee Hyun Jung [B] was admitted to college at the top of her class and has little in common with Lee Hyun Jung [A] apart from their name and major. Lee Hyun Jung [B] finds herself drawn to the reserved Choi Kyung Soo, who always seems to keep a distance between himself and the other students at school, and she tries to bring him into her group of friends.
