The Poison of Absolute Love Spreads All over the World

She was originally the daughter of a miraculous doctor, respected by everyone, but her whole family was destroyed in one day. He was originally a beloved disciple of the ghost doctor and doted on by his senior brother, but the whole valley was destroyed overnight. An upright sect from a famous family will kill my closest relatives, and an upright gentleman will destroy my master's sect. So, what is justice and what is right and wrong? Being hunted and running for her life, wandering and homeless, just like an ant eking out an ignoble existence. Who was it that hurt her, harmed her, and killed her? My heart is good, but the world is unkind. I worship the Demon Cult and practice my poisonous skills. I will no longer be slaughtered by others. I will let killing accompany me for the rest of my life. Right and wrong will be judged by the souls of the dead at my feet with the sharp blade in my hand. He, the leader of a famous family, has great achievements and is difficult for anyone to defeat. When they first met, he was still a young man dressed in white and traveling around the world with a sword. She was still that quirky and ugly girl. She should be a passing guest, but she was in troubles of life and death, and stayed with each other for a lifetime. But how can good and evil be reconciled? How can the great responsibilities of the world be compared with her? How can the master tolerate her hands stained with blood...