A medium-shot illustration of a single female oni is arranged in a wariza sitting posture on a tatami mat inside a traditional wooden room. The oni with vivid red skin, short hime-cut black hair, and small curled horns wears a partially opened black kimono over a sleek black leotard; a gold belt cinches the outfit while the open red kimono sleeves drape over her arms. She leans forward with one hand braced on the floor and the other resting on her thigh, smiling playfully with one fang visible. Intricate white geometric markings decorate her forearms and chest. Soft overhead lantern light casts sharp shadows and saturated highlights across her figure. The background features wooden pillars, folded fusuma doors, and muted tatami patterns. The color palette uses high-contrast complementary reds,greens, and golds with vivid candy-like hues and neon accents in the shadows, conveying a lively pop-art ambience.