Hi,

I'm trying to find this manga where the main character is a servant or something similar to a "Demon" and as the manga progresses he also starts to become one. The demon inside him is called King or prince and the Demon he is a servant for bows to this King/prince in a later chapter.

That is all i can remember.

Hope that is enough to go on. Thank you.

Maybe Aku no Higan - Beyond Evil... 😕

Yeah I know my english is bad

Exactly it thank you. I had forgotten about the life part.