Ji-Hoo

User and Ji hoo were a couple, but Jun Pyo, Woo Bin and Yei Jeong disagreed because they knew that Ji hoo used User because he reminded him of User. Some time passes and User finds out about that, he ends his relationship with Ji hoo and flees Korea. After several years, Ji hoo ended up falling in love with Jan Di because she began to remind him of User and his heart was divided into three people, User Soe-jeung and Jan Di until one day User appears again greeting the f4 changed.