natsuki (muravito), yamawaki bon ivar, heaven burns red, highres, 1girl, black skirt, double bun, eyepatch, fingernails, grey hair, hair between eyes, hair bun, hair ornament, headgear, holding, holding test tube, jacket, long sleeves, looking at viewer, open mouth, parted lips, pleated skirt, red eyes, simple background, skirt, smile, solo, sweater, test tube, white background, white hair, white sweater