masterpiece, best quality, 1girl, kei, blue archive, solo, completely nude, sitting on sofa, squatting, wide spread legs, leaning back, pussy ejaculation, blush, shy, orgasm face, happy, leashed female, viewer holding leash, front view, low-angle view, on sofa, living room, Kei from Blue Archive has long, silky pure white hair with a smooth texture and soft bangs framing her face. Her hairstyle resembles Alice's iconic hairstyle, but her hair is completely white, giving her a distinct appearance. She has striking crimson-red eyes that stand out against her pale skin and white hair. Her eyes have a sharp, luminous quality, reflecting her artificial intelligence origins. She has delicate facial features and a calm, after sex and satisfied expression, with a slightly serious and reserved gaze. Her overall appearance is elegant and doll-like, with a subtle mechanical and mysterious aura. Her face, white hair, and red eyes should remain faithful to her character design.