His name is Xiaodouzi, a name given to him by his father at the last moment.
He is the treasure in brother Yan's hands, but Xiaodouzi hopes that his fathers can also treat him as the treasure in their hands. Why!
Douzi is actually just a douzi. I hope his father will love him and his mother will be dear to him. It is best that Hua Qianyu, who kills a thousand swords, be nice to him. But... Oh...