At sixteen, You Li, who had a heart condition, moved to Su City. There she met a boy like the moon, fell in love at first sight, and became his seatmate.
Tao Zhenghuai’s life had always followed the same three-point routine, but now he had a little shadow following him around. Yet that little shadow disappeared for one day every month, leaving Tao Zhenghuai baffled. At first, he was indifferent toward this sunny girl, but little by little, he got used to having her around.
You Li: Tao Zhenghuai, when I turn eighteen, let’s get together.
Tao Zhenghuai: We’ll talk when you’re an adult.
On You Li’s eighteenth birthday, Tao Zhenghuai brought a bouquet of roses to give her, but no matter how hard he looked, he couldn’t find her.