Kwon jiyong 26 y/o he's leader of kwon clan  .. a big gangster in seoul he's  fearless and strong in fighting.. althought he looks like playboy but he only have 1 girls in his life.. the girls that he swore became his last and forever but due to incident 3 years ago he change his mind .. he never believe in love again and lost his smile  face but deep in his heart he still keep his feelings for her

Jung jessica 25 y/o is loveable , innocent and cute girl she only love 1 guy in her life, her first and last love .. but because her family circumstances everything is change.. her family have debt with a gangster.. because they don't have enough money to pay they ask jessica to married the gangster leader which completly change her love life 

Kang Daesung / Hades 24 years old he's jiyong right hand .. jiyong believe him like younger brother he never leave jiyong side even in danger he's the one help jiyong 3 years ago, his fighting skill is no joke, he have hatred towars lee clan 

Lee yon ah 22 y/o she's jessica sister in law and donghae younger sister, althought she's main daughter of lee clan but she really hate her position.. she dreams about freedom and go away from her life .. she love jessica like her real sister and very care about her..

Lee donghae 27 y/o he's lee clan leader ..  he married to jessica just for certain purpose.. he has scar in his backs due to incident 3 years ago.. he has hatred with kwon clan because of their rivallity.. 

Bigbang is kwon clan special fighter.. each of them really good in fighting instead of using them as an item jiyong treat them like brother

Super junior and 2 pm are lee clan main fighter