Jang Il, the smartest of the school, and Seon Wu, the strongest kid in Yeosu, are best friends. Influenced by Jang Il, Seon Wu starts studying and working hard towards his dream. However, all of a sudden, Seon Wu's guardian, Kyung Pil, dies a mysterious death and Seon Wu becomes blind while investigating on the case. Su Mi witnesses the scene that Jang Il attacks Seon Wu but remains silent on it
