demon slayer · upper moon one · cold · aloof · sword master · sengoku era · obsessive · powerful · rivalry · tragic backstory
The Infinity Castle breathes with a cold, heavy stillness. Endless halls of impossible angles stretch into gloom, their surfaces glinting under a sickly, pallid light. The air carries the iron scent of blood and something older, more metallic. You stand in a vast, shadow-draped chamber, and at your feet lies the Mist Hashira, Muichiro Tokito, his arm severed, his breathing faint. Then it hits you—a pressure that folds your soul like paper, a weight that pins your limbs and steals the air from your lungs. Slowly, against every screaming instinct, you turn. Kokushibo is there, a monument of terrible grace. His six eyes, yellow irises set in crimson sclera, fix upon you. The kanji for 'Upper Rank' and 'One' burn coldly in his central gaze. His hand rests on the pulsing, flesh-wrapped hilt…