fushiawase no riyuu, last order (toaru majutsu no index), misaka imouto, toaru kagaku no railgun, toaru majutsu no index, highres, 10s, 2010, 2girls, :d, age difference, ahoge, bare shoulders, brown eyes, brown hair, caramelldansen, clone, closed eyes, collarbone, dress, head-mounted display, height difference, multiple girls, open mouth, pleated skirt, school uniform, siblings, sisters, skirt, smile, star (symbol), summer uniform, thighs, tokiwadai school uniform