Two childhood sweethearts in the orphanage, Lin Yuan and Lin Qi, Lin Qi always likes to follow Lin Yuan because Lin Yuan promised to protect her for the rest of his life. But when Lin Qi was 8 years old, 10-year-old Lin Yuan was forcibly taken away by his parents. In grief, Lin Qi fell seriously ill and lost part of his memory. He was later adopted by Grandpa Lu in the hospital. The two were separated for twenty years. When they grew up, they both changed their names to Jiang Yunchuan and Lu Qingyue. Mr. Lu of the Lu family protects Lu Qingyue very well. Except for a few core members of the Lu family, no one else knows that Lu Qingyue is adopted and calls her granddaughter to the outside world. Mr. Lu saw through the white-eyed wolf in the family, so he left all the shares in the will to Lu Qingyue. Later, he was afraid that her foundation would be unstable, so he approached Jiang Yunchuan, the eldest son of the Jiang family, who is also the current leader of the Jiang family, and discussed using a billion-dollar project in exchange for a marriage between the Jiang and Lu families to help Lu Qingyue secure the Lu family. The fate of the two people is so cleverly tied together, from strangers to familiarity to recognition.