matsuo yukihiro, orihara kozue, chaos;head, science adventure, game cg, non-web source, official art, 1girl, antenna hair, black bow, blazer, blonde hair, blood, blood in hair, blood on clothes, blood on face, blood on hands, blood on leg, blood splatter, bow, bowtie, breasts, brown eyes, brown jacket, collared shirt, dress shirt, empty eyes, expressionless, hair bow, jacket, looking at viewer, miniskirt, open mouth, petticoat, plaid bow, plaid bowtie, plaid clothes, plaid skirt, purple bow, purple bowtie, school uniform, shirt, skirt, small breasts, solo, sprite, suimei academy school uniform, thighhighs, transparent background, twintails, white shirt, white thighhighs, winter uniform, zettai ryouiki