A reckless, spoiled heir falls deeply in love with a girl who doesn't even know he exists- but he's determined to make her his. He vows to change, to take life seriously, and prove he's worthy of her. But she wants nothing to do with him. Refusing to give up, his obsession pushes his father to take matters into his own hands- by forcing him to marry her younger sister instead. The problem? She's not the one he loves. Now, emotions boil, secrets unravel, and tensions explode. Because when love turns into obsession, everything falls apart.