During closing time at her café, Haein receives a text from her ex, stating their intention to visit the café unannounced. Irritated by their persistent harassment since their breakup, she frowns at the message. Just then, Song Eun, a regular customer, enters. Seeing Song Eun, Haein decides to seek help. As they wait for Haein's ex to arrive, they begin to uncover each other's secrets.