Park Eunri is an only child in her family.Eunri`s parents had an accident when she`s 12 years old.Before that,3 years ago her parents and Kai`s parents had a promise to get them marry when they in age 20 years old to merge their company.Eunri and Kai are bestfriend since they elementary schooler.When she was 12 years old,Eunri live with her cousin Cho Rin A at LONDON.3 years later,she went back to KOREA and live with Park Chanyeol,her other beloved cousin. She studies at Seoul High School and met a boy named Kim Myungsoo,he prefer to be called L. Kai,Eunri and L are classmates.They always went home together with EXO and INFINITE. Kai and L can`t sit together or they will start to fight each other and just Eunri can stop both of them. Kai knows that L had a feelings for Eunri,L also knows that Kai had a feelings for her. Eunri knows that two boys have feelings for her but she doesn`t care about that L.O.V.E feelings.