STORY - Bang Cheolyong, also known as 'Mir', sees a young man alone. Something about the man makes Mir feel strange. Mir gets curious and goes over to the man and talks to him, the young man introduces himself, he says his name is Lee Changsun, but he tells Mir that he can just call him 'Joon'. Mir and Joon become friends, but Joon starts acting weird, he keeps asking Mir if he remembers, Mir doesn't understand