40 parts Complete MatureIn a high school where secrets and unspoken truths abound, best friends Shin Su-jin and Song Da-bin find their bond tested by misunderstandings and the challenge of understanding their emerging romantic feelings for each other. As Su-jin (AKA SINCE), an aspiring rapper, grapples with her sexuality, parental pressures strain their relationship, leading to a painful separation.
Four years later, Su-jin forms a romantic connection with her first girlfriend, Hwang Yu-mi, helping her further explore her identity. After a chance encounter, Su-jin and Da-bin reconnect, navigating their complicated past, lingering feelings, and the changes that time has brought. As they confront their evolving relationships, Su-jin stands at a crossroads, torn between her deep, unresolved love for Da-bin and her new relationship with Yu-mi.