Back in his high school days, Joon-Seok (Joo Sang-Wook) was bullied by Chang-Sik (Yang Dong-Geun). As a result of the , Joon-Seok's senior high school days were just like a nightmare. Joon-Seok finds it difficult to live a life that is normal as a result of bullying. Meanwhile, Chang-Sik, who has forgotten everything he did Jeon-Seok, resides a content life. He is going to marry Ji-Hee (Lee Tae-Im). Joon-Seok can pay him back to most of the distress.