A couple who are at odds with each other while mountaineering accidentally travel to an imaginary era through a mandarin duck pendant. Through the pendant, the heroine learns that the two jade pendants must be combined to have a chance to return to the modern world. The hero came many years earlier than the heroine. He has been raised since childhood and is more familiar with this era than the heroine. He has become a self-reliant rich second generation. Because of a family marriage, he reunites with the heroine. Another piece of jade pendant is in the hands of the male protagonist, but the relationship between the male and female protagonists breaks down and the mandarin duck pendant cannot be reunited, so the two people start their funny journey of repairing their relationship.