Five-year-old Shen Nian escaped from the orphanage and accidentally met Chen Tong, who was also an orphan at the age of 13, and the gears of fate began to turn. The two became each other's only support in life. After all kinds of hardships, they finally got together after more than ten years. However, an air crash left Chen Tong missing. How will Shen Nian face a life without Chen Tong? Will Chen Tong appear again? How will the fate of the two change?