A few months ago, Jeong Dam-hee quit her job and fell into a state of severe social anxiety and panic attacks, completely falling apart. Mustering up the courage, she goes to a part-time job interview, only to face her worst first love, Ha Yoon-seo. "I don't know what the problem is. I'm tired of your body, and I want to sleep with someone else now. That's... only natural, right?" Ha Yoon-seo, who once left such words and abandoned her. Jeong Dam-hee is wary of her, but finds herself entangled with Ha Yoon-seo once again. "I regretted ending things with you like that, Dam-ah." Knowing she might get hurt again, Jeong Dam-hee wants to believe those words. No matter how much she pushes her away, Ha Yoon-seo keeps coming closer. Jeong Dam-hee finally accepts Ha Yoon-seo, but is confronted with a cruel truth once more, leading her to leave Ha Yoon-seo. No, she thought she could leave. Until she was caught by Ha Yoon-seo again.