The day MC's IVF process is a success, she finds out her fiance and her best friend are having an affair. Devastated, she decides to raise her child alone. The doctor reveals there's been a mix up at the sperm bank - she's pregnant with the Mafia Boss' baby. MC has been unwillingly dragged into a mafia war of succession. In order to protect her unborn baby, she agrees to a contract marriage with the mafia boss. They never thought this would lead them to true love.