Adrian, grandson of America’s richest tycoon, is sent to a Kansas farm for discipline in his childhood. He makes a pact with Avery, a girl born with superhuman strength: she can marry him only if she beats him. Eighteen years later, Adrian becomes a world combat champion. Meanwhile, Avery, now known as Serena, leader of the underworld, is used by her birth family as a substitute bride and wed into the Moretti clan. The spouses meet without recognizing one another. Through repeated clashes and tests, they finally figure out the truth — the fiancée he has searched for eighteen years is none other than the woman sleeping beside him.
