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A photorealistic vertical commercial promotional portrait set in a cozy modern bookstore interior. A young East Asian female librarian stands behind a polished wooden counter, presenting a prominent book toward the camera. She has long straight dark brown hair parted near the middle, delicate small earrings, and a friendly, neat, professional expression. She wears a crisp white button-up shirt, a muted green striped necktie, and a beige apron tied at the waist featuring an embroidered name patch with the text "[Librarian Ai-chan]" alongside an open-book icon. Her left hand holds the book upright at chest level, slightly angled forward, while her right hand gestures hospitably beneath it. The book features a glossy dark cover with striking orange title typography displaying "[Pollo AI]" once near the top and glowing again near the center over a cinematic landscape graphic, accompanied by small Japanese subtitle text and a circular [P]-shaped emblem in the lower-left corner. On the left counter sits a clear acrylic desk sign with Japanese text above and "[Ai-chan]" below. On the right counter is a horizontal stack of exactly three hardcover volumes with numbered spine labels and Japanese titles. In the softly blurred background are a tall wooden bookshelf filled with volumes, tiny potted plants, a warm desk lamp, a framed Japanese wall poster, and a lush indoor plant on the far right. A subtle white watermark "[Pollo.ai]" appears in the upper-right corner. Shot from mid-thigh to above the head, clean commercial lifestyle photography, warm ambient lighting, shallow depth of field, authentic skin and fabric textures.