5 letter owners

Kim Pli opened the locker as usual There was a letter there, so when she opened it It said "I like you". The writer's name wasn't written, so she thought it was a joke, But she kept sending letters saying "I like you" for several days. 'Who really likes me?' I'm going to find the person who wrote the letters for real! #PlayB #Romance #Yejun_Noah_Bambi_Eunho_Hamin