The One True Cultivation Art

After countless battles and the death of countless allies, I managed to defeat the demon lord. I had become the hero, stood on the battlefield for the sake of humanity's future... yet I found myself killed by the people I was fighting for. I realized that the world isn't black and white. instead, it's gray. as I was the hero for the humans, I was the devil for the demons, an evil monster blocking their race from leaving their dying realm...
Well, It's all over now. I've died, I can close my eyes and rest... but I wasn't given that chance as I was reborn within the cultivation world. Although I want to sit back and sleep, I have to stand up to protect those I care for. this time I'm no hero of humanity, No... just the hero to my loved ones, the world can burn for all I care.