On Cheng Tiantian's sixth birthday, the bad luck of death came to her. Due to an accident, her mother died in front of her... From then on, Tian Tian suffered from mental aphasia and did not speak a word for two years. Finally, she met someone who solved the knot in her heart, that was her brother, Cheng Tianxiang. But fate seems to like playing tricks on people. Tiantian lost his memory in a car accident. In order for Tiantian to forget all the unpleasant things that happened in the past, and for Tianxiang to be able to study abroad with peace of mind, his father concealed the truth of the matter and announced that his daughter was dead, letting Tianxiang Painful, he had no choice but to go abroad... Secretly, the father handed his daughter over to the housekeeper, Mrs. Lin, and gave her a sum of money to let her live with her daughter again... More than ten years later, maybe it was God's arrangement, the brother and sister met again miraculously, and all kinds of situations unfolded unexpectedly...