Sehun and I are best friends since we were four years old. We had so many happy moments together. But the happiness shatters when we entered the high school. He got into a popular group. They despised me including him for no apparent reason. He even bullied, not caring that I'm his best friend. I endure the pain considering that you're my only best friend. But humans have their limits. I can't stay patient to his violent towards me. I move to United Kingdom to forget all of the memories we have. The happy and painful one. I guess the job got easier when I lost my memory due to an accident. Years later, I came back to Korea but I simply couldn't remember anything. I got into SM Entertainment because of my talent. I met Sehun unexpectedly but couldn't remember him. He tried to convince me that I'm his childhood friend but I won't believe it. Then, I met his friend, Kai. I fall in love with him at the first sight. But with Sehun who keep trying to bring back my memories, I can't express my love to Kai seeing Sehun so determined. And I finally realized. I love both of them.