When Cheng Yilin was three years old, he met Jiang Xieze, who was two years older than him. His mother held his hand and said that this was the son of her friend and she wanted to call him brother.
Three years old——
Cheng Yilin: Brother!
Jiang Xize: Oh.
Sixteen years old——
Cheng Yilin: Country!
Jiang Xieze: Don't call me that outside.
Cheng Yilin: Okay, Brother Jiangshan
Jiang Xieze:......
Intention: I am very happy to have a brother, okay?