I just beat Demon of Hatred on my first attempt, BUT I cheesed him. Came here to say this: I FEEL BAD.
Sekiro has been so hard to me, I have been punished so many times, I got so small chances that when I saw that I could cheat, I just couldn't help it. Like I was blinded by revenge, I thought it was fair, I have the right to take some advantage at some point.
The feeling, my friends, when I got to that rooftop, the joy, the justice! I was like "I am the only king in the world! Ha ha ha!"
But when the DoH fell off the cliff I instantly regretted. And when he said "thanks, Wolf" and the trophy popped, it was like an illusion vanishing right in front of my eyes. I felt like an impostor. I still do.
It made me question my morals and ethics.
I was so f***ed for not being good enough for playing Sekiro that I didn't give him a chance to show me again that I am not good enough. Seems like he did it, though.
That's why I am quitting. Won't play Sekiro anymore, won't finish the game.
This wiki helped me a lot, and I will never forget the great fights against Genichiro and the Guardian Ape, memorable to me. I will also never forget the guy who wants he could kill the Great Serpent with the power of Christ.
That's all, have a good life, friends.