In 1988, Lu Yunting, a homeless teenager suffering from brain injury and amnesia, was taken in by Lin Qinghe, a kind-hearted stall-owning girl. Exchanging a hand-drawn fake bill for a bowl of stir-fried rice cakes, he also received the first warmth in his life. Twenty years later, Lu Yunting has become a corporate group chairman, yet he never lets go of that grace, vowing to find his benefactor. After reuniting, he secretly guards the weathered Lin Qinghe behind the scenes, helping her resolve predicaments, fighting off villains, and restoring her innocence. Through repeated hardships, the two move from gratitude to true affection, ultimately holding hands to spend the rest of their lives together.