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. (Source: SBS) ~~ Adapted from the webtoon "Convenience Store Saet Byul" by Hwalhwasan.