A medium shot, eye-level anime illustration featuring a young girl with a tomboyish "boku-ko" personality, centered in the frame. She has a confident, slightly smug expression with a small smirk, gazing directly at the viewer. She is wearing an oversized, heavy-fabric black hoodie with the hood down, the sleeves partially covering her hands as she tucks them into the front pocket. Her most striking feature is her heterochromia, with her left eye being a vivid blue and her right eye a bright gold. She has short, messy hair that frames her face. The background is a simple, neutral-toned interior with soft, diffused lighting that casts gentle shadows, emphasizing the matte texture of her black hoodie. The color palette is primarily monochromatic with the exception of her contrasting eyes, creating a focused and high-quality visual atmosphere with sharp line art and clean cel-shading.