Rain fell in thin, slanted lines over Tokyo, blurring the city into a mess of lights and shadows....

Rain fell in thin, slanted lines over Tokyo, blurring the city into a mess of lights and shadows. Ren Takahashi stood alone on the empty school rooftop, his knuckles bleeding as he stared at the dark stain spreading across the concrete. It wasn’t rain. It was cursed residue—thick, black, and pulsing like it was alive. “Why won’t you disappear…?” Ren muttered, his breath shaking. Behind him, the air twisted. A curse emerged—tall, hunched, its body stitched together with glowing black threads t