An accident caused Shangguan Guiling to lose his childhood friend Wang Yangguang, and he became a child who could return to childhood. In order to avoid being hunted by the W organization, Shangguan Guiling began to flee. After returning to his childhood home twice, Shangguan Guiling found some clues and planned to return to Shangguan's family. At this time, Shangguan Yun is no longer Gui Ling's father, but a person planted by the W organization. In order to get what he wants, the leader of W sacrifices the fake Shangguan Yun in order to lure Shangguan Gui Ling into a trap step by step. Shangguan Guiling, who returned to Shangguan's house, was surprised to find that Shangguan Lan was actually the child he adopted when he returned to his childhood home for the second time. Facing the two benefactors before and after, how should Shangguan Lan choose? Can Shangguan Guiling find out the mastermind and take revenge?