Krystal (soojung ) was a normal kid that go through a tough times at her curret school she transferred in. She was bullied by Myungsoo all the time literally everyday. As she has to change classes sometimes, she had to sit with minhyuk the cold person minhyuk is not really a cold person, it's just his present year change from past usable the change is suppose to be bad to good but for him is the opposite so he trust no one even his mother-in-law and Myungsoo his brother. Krystal had a secret

kang minhyuk is Krystal's best friend and has a hopeless crush on her. But the sad thing is that krystal doesn't like minhyuk the way he likes her , while krystal has a boyfriend ,Minho, minhyuk was sad but he wanted to be by Krystal's side. Will minhyuk try to steal Krystal's heart?