Prologue
"Fan, where are you going?" The young Mei asked tightly holding the hand of the man in front of her, his eyes were already slightly red.
The boy named Fan looked at the boy in front of him distressedly, and forced out a smile, "I'm going abroad, and it will take a long time to come back!"
"How long will it take?" Mei grabbed his sleeve tightly and held on, seemingly using up all her strength.
Fan lowered his head and thought for a moment, then immediately raised his head, "Let's have sex. Ten years later, I will definitely come back to see you!"
Mei looked at Fan suspiciously, but timidly stretched out her slender fingers and took his hand. Fan looked at the man in front of him. His skin seemed to be broken by a blow, and his eyes and lips were like the color of beautiful plum blossoms in the snow.
When turning to leave, Fan told himself that he could not look back because he was afraid of letting Mei see his tears.
That year, Mei was 5 years old and Fan was 7 years old. For these two young children, this hook was a promise that could not be broken.