Demon Slayer: the Silent Disaster

[Ghost + single female protagonist + ate a lot of people (using the blood ghost technique) + slaughtered the Kamado family with my own hands + respect the original characters and try not to be OOC] [Indifferent Ghost King & Gentle Girl] [The male protagonist is Sanwu, and the female protagonist is a spider ghost mother. The timeline has been changed. She was tired and turned into a ghost at the age of nineteen. The character remains the same as the original. He is the ultimate disaster tempered by hatred and despair. It was given a new life by the ghost king Wuhan himself, and became the most perfect killing weapon. As one of the top strings alongside Black Death Mo, he is a silent disaster that wanders around the world. Wherever he passes, life disappears silently, leaving only a dry body. He devours everything just to fill the hole in his heart. He is also a prisoner struggling in endless darkness. The innocent will is his shackles, and the crazy instinct is his prison. It wasn't until Natian Spider Mountain that he met Zhixue, a ghost who still retained the last trace of tenderness despite his twisted fate. Like catching a glimmer of light in the darkness, he rescued her from hell out of an inexplicable impulse. From then on, the cold ghost king and the weak girl began a journey of licking each other's wounds. Her existence is the only silence in his crazy world; and his protection is the only remaining gift in her desperate life. When the Demon Slayer's Nichirin Sword and Muzan's overwhelming fury came at the same time, he suddenly woke up. He destroyed the boy's past with his own hands, but found his future because of another girl. "I am willing to betray the gods and embrace the sunshine for you."