My life as a surgeon ended in a hail of gunfire, only for me to awaken as a child in the world of my favorite wuxia novel. Armed with modern medical knowledge, I did what I do best: save lives. My first patient was a boy left for dead, a boy who would grow up to be the Supreme Demon King. Now, he sees me as his sworn brother, an unbreakable bond forged in blood. I just wanted to survive, but by saving the future's greatest villain, did I just sign my own death warrant?