[22:09]
Silencer Ren:
Blood Killer was genetically modified artificial human created as the ultimate lifeform. As a child soldier he rose above the ranks with his weapon of choice, the legendary katana. He was finally killed after defeating 10,000 men on his own and he was sent TO HELL. In hell he found the king of all demons and had a hard-fought battle that left his left eye blinded. In the end he was victorious and he got his soul back so now he's back in the real world and now hes HALF DEMON. and now his sword is the BLOODLUST, and he needs to feed it blood or he will die. But he likes killing a lot so its ok.

[22:13]
Silencer Ren:
I killed the god of darkness and evil and absorbed his powers, and even before that I was his son. I killed the king of all demons and took his power, so now I'm half god of darkness, half demon, and only part human. Not only do I own death, but I am death

https://www.youtube.com/watch?v=KUPbQ-B3YkM