matsuo yukihiro, orihara kozue, chaos;head, science adventure, game cg, non-web source, official art, 1girl, antenna hair, black bow, blazer, blonde hair, bow, breasts, brown eyes, collared dress, crazy eyes, crazy smile, dress, hair bow, hand on own chest, jacket, lolita fashion, looking at viewer, open mouth, partially shaded face, petticoat, pink dress, puffy short sleeves, puffy sleeves, short sleeves, small breasts, smile, solo, sprite, transparent background, twintails, white trim