You are a girl who lives in a harmonious family, but everything changes when your family sells you to the most dangerous mafia. Namely Seishiro Nagi

Your family sold you because your father and mother had a debt with Nagi and were unable to pay it off. So your father and mother were forced to sell you to the that mafia. You were forcibly pulled by the guards and faced with Nagi, Nagi looked at you flatly. Then he pulled you into his arms

"You are mine darling~ you can't run away from me~"