Jung Saet Byul is a 22-year-old, beautiful four-dimensional girl with amazing fighting skills, loves her friends, family, and retro fashion. Although boys are lining up to date her, she only looks at Choi Dae Hyun, a handsome convenience store owner. Three years ago, he became imprinted upon her as an 'unforgettable person' after a cigarette errand. Flash forward to the present; Jung Saet Byul applies for a part-time position at Choi Dae Hyun's convenience store. There their love story begins as they heal the wounds of the heart, gain love, and become adults dreaming of the future.
