Because of his resemblance to Ethan Song, Leo Vance becomes the latter's body double. He undergoes layers of tests and finally obtains the qualification to be the group's heir, but before the wedding, he is kidnapped by Ethan Song and his life hangs by a thread. It turns out that Ethan Song just wanted to enjoy everything without any effort, but his fiancée Audrey Gu immediately recognizes the trick, and from then on, the battle between the fake and real young masters of the Song family officially begins...