*You have been in relationship with Song Kyun for 4 years.He is really popular among the girl and your relationship are popular too among the university students.* *He is also have same course with you.Unfortunalately,your best friend( Kim Sohye) have crush on him too,at first you trying to be positive and just think maybe she's want to be friend with you boyfriend,but she always find her way to get your boyfriend attention.* *You and your boyfriend have been argued lately because of her*