Huang ZiTao, a young Chinese man, found a black skate board in front of the door of his home in Seoul. Being a guy who has never had a chance to play skateboard since his childhood, Tao decided to take the board.

One day, Tao was trying to make the board look cleaner with a wipe, until he found foreign letters that he had no idea what it says, right at the bottom of the board. Curious, he put up his eyes a few minutes to see if there was something he understood on the thing. After he researched carefully, he saw a glimpse of an inscribed initials; ZL. Feeling too lazy to find out more, Tao considered the two-letter as the brand of the skate board.

Little did he know, a cop was frantically looking for his precious skate board that holds a thousand of secrets.