Even after fulfilling her dreams of becoming a magazine editor and living in Seoul, Ko Sooah can't seem to shake the feeling that something is still missing. When a difficult day at work and an argument with her mother drives her to get a tattoo, Sooah bumps into the last person she expected to see: her first love, Baek Hubeom. This encounter rekindles old feelings and sparks questions about what happened between them nine years ago, but will Sooah be able to muster up the courage to ask them?