There are nine demons, three of them are Liu Xing.
The son who killed his brother was named Cain.
The willows are like snakes, they are sleepy and love to kill.
Cain is a person of Buddhist origin.
Yanagisawa: I just help people find a son.
Cain: Wouldn't it be better if we had one child?
Yanagisawa: You are a good student.
The Oriental Demon Lord who only fights and sleeps VS the Buddhist ancestor who cares for his old age and ignores the secular world
This article is also known as
"Take a look at the ancestor of the blood clan who can only sleep"
"On the relationship between sleep and the cultivation of demons"
"The Passion of Blood Race Through Time"