Demon Slayer: I Became the Ultimate Demon Blade

Lin Fan awakens in the Demon Slayer world—not as a hero, but as a sentient demon blade with infinite evolution potential. Armed with a reality-breaking system that harvests emotional energy, he transforms from weapon to legend. His first form? The infamous Azuro Maru. Now he whispers temptations to Tanjiro, terrorizes Muzan, and rewrites every tragedy into triumph. Chidori, Bankai, Unlimited Blade Works, Flying Thunder God—if it exists across the multiverse, he can claim it. No regrets. No mercy. Just one blade's ascent to godhood across infinite worlds.