Choi Sulli, a high-school student, moved from the U.S back to Korea to continue her studies. She plans to stay with her uncle until she gets her own place. Her uncle, Park Seo Joon, works as an intern in a big hospital but quits soon after to become a model. He agreed on letting her stay but warned her that she'll be the only girl there since his friend's brother is also staying there. She ignores the warning and moved in where she