Lee Hyun Ki was about to leave for his after-school classes as usual. Everything appears to be normal, as it has been on previous days. He appears to be walking while reading his book. He pays little attention to his surroundings and is always totally immersed in his own world when it comes to studying, especially when it comes to medical subjects.

The handsome highschooler took the usual route he always takes when walking to his house. Strangely, the dark riverbank, which usually appears empty, is crowded that day. He discovers a police line there, but that isn't enough to inflame his interest until he hears a familiar name called....