“You’re like a dandelion. You promised me that you’ll stay, but then you're gone.” Lee Jaeho is a final year student in Hanyang University majored in Business Management. As soon as he reached his final year, he decided to stay outside of the campus and moved in into a new house. While Jaeho was unpacking his belongings and trying to clean up the house with the help of his aunt and uncle, he saw a figure trying to hide away from him. It was a girl dressed up in a white knee length dress. She introduced herself as Choi Il Hwa. Turns out she’s a ghost living in the house. Instead of being afraid of her, both of them felt so familiar with each other. Right after Jaeho moved in, both of them got closer and Il Hwa would follow him everywhere. As they got closer, they are trying to find out how she died. Well, will they find the answers?