(honkai: star rail,) 2.5d ultra-realistic style, a charming and mature vixen with black hair, mouth slightly open, white teeth, comfortable expression, tongue visible, elegant posture, with a red - black style school attire, professional pleated skirt, with a few beads of sweat on her forehead. viewed from a low-angle upward. set in a simple room, soft sunlight bathes her.the background is blurred to create a cinematic depth - of - field effect, making her the focus of the picture