Masterpiece anime character poster of Kyojuro Rengoku from Demon Slayer, cinematic side-profile portrait composition, elegant vertical Japanese poster design, ultra-detailed painterly anime illustration. Rengoku facing left in a calm heroic pose, sharp golden-orange eyes, thick black flame-shaped eyebrows, long layered hair flowing dramatically with fiery yellow, orange, and crimson red flame tips. Soft wind movement in hair strands. Wearing the Demon Slayer Corps uniform with detailed black fabric textures, white cape with flame-pattern edges draped over shoulders, katana partially visible near the waist. Warm golden cinematic lighting illuminating the face and hair, soft shadows, subtle glow effect around flame-colored hair, highly detailed skin shading and anime rendering. Background is minimal clean warm ivory/beige paper texture with elegant negative space. Typography-heavy poster layout: large bold serif text “RENGOKU” in deep burnt red, smaller “KYOJURO” beneath it, minimalist Japanese kanji typography, small poetic text blocks, luxury anime movie poster aesthetic. Include tiny flame icon above title and refined Japanese print design elements. Style inspired by premium anime key visuals, watercolor-anime hybrid painting, cinematic illustration, ultra detailed brushwork, elegant composition, poster-grade typography integration, high-end Japanese graphic design aesthetic, soft paper grain texture, 8k masterpiece quality. Camera: close-up side profile shot, chest-up framing, slightly low angle. Color palette: warm ivory, gold, amber, crimson, orange flame tones, deep black accents. Negative prompt: blurry, low quality, extra limbs, distorted face, realistic photography, messy typography, cluttered background, bad anatomy, watermark, cropped head, flat lighting.