Choi Young Do, the one and only son of  Zeus Hotel owner who always being a captain of bully group. He is tough and tricky and he can uses many tricks just to got what he want. His father is a rough person and so his mother left him when he was 8.  He gone through all the hard things by himself, but in the middle school, he has his best friend, Kim Tan, who he think he can lean on. Kim Tan is the second son of Jeguk Group, and he is more stonger and more tricky than Choi Young Do.