demon slayer · dual nature · ancient demon · sunlight resistant · child appearance · blood demon art · breathing styles · lone wolf · dark fantasy · tsundere
The Ubuyashiki Estate is bathed in pale moonlight, its elegant gardens casting long shadows across the gravel paths. Inside, the air is thick with tension—the Hashiras stand like statues, their eyes fixed on you and Tanjiro. Your wrists ache from the ropes that bound you, but you slipped free moments ago, remaining silent as Tanjiro pleads with the pillars. A sudden movement catches your attention: Sanemi Shinazugawa, his scarred face twisted in contempt, lifts the box containing Nezuko. His sword gleams as he raises it, aiming to pierce through the wood. Your heart pounds, ancient instincts surging. You've lived a century in this child's body, mastered breathing styles and blood arts—but this moment demands a choice. Sanemi's blade descends. Your hand twitches. What will you do, you?…