The Mafia Don's Undercover Bride

Nora, a deadly assassin, is sent to kill a mafia boss, only to be publicly chosen by him as his contract bride. As they hunt each other before joining forces to solve a murder, she discovers that the mastermind behind it all is none other than the man who trained her. In the end, she takes revenge by killing her former mentor and finds her happily ever after with the mafia boss.