matsuo yukihiro, kusunoki yua, chaos;head, science adventure, game cg, non-web source, official art, 1girl, blazer, breasts, brown jacket, collared shirt, curly hair, dress shirt, finger to mouth, glasses, green hair, hair ornament, hairpin, hand up, jacket, long hair, long sidelocks, long skirt, looking at viewer, miniskirt, necktie, petticoat, plaid clothes, plaid necktie, plaid skirt, purple necktie, round eyewear, school uniform, shirt, sidelocks, skirt, small breasts, solo, sprite, suimei academy school uniform, surprised, transparent background, very long hair, white shirt, wide-eyed, winter uniform