The Assassin Heiress Returns

Sienna Shaw, true heiress of the Shaw family, was driven out as a child. For revenge, she became the King of Assassins. When the fake heiress refused to marry the notorious, allegedly dying 'Crown Prince', Sienna was brought back for a good-luck marriage. She returns, takes down the fake heiress, reorganizes the household, and teams up with the 'mad dog' Crown Prince. The two powerhouses join forces, conquering all.