1girl, ambiguous red liquid, arms at sides, black hair, black sailor collar, black serafuku, black skirt, blurry, closed eyes, collarbone, depth of field, floating hair, hair ornament, hairclip, long bangs, long hair, long sleeves, no scarf, open mouth, pleated skirt, red background, sailor collar, sailor collar lift, school uniform, serafuku, simple background, skirt, sleeve cuffs, smile, solo, teeth