cad (caddo), shokuhou misaki, toaru kagaku no railgun, toaru kagaku no railgun t, toaru majutsu no index, 1girl, arms behind back, bag, bare shoulders, blonde hair, bound, breasts, gag, gym shirt, hair between eyes, handbag, improvised gag, indoors, large breasts, long hair, looking at object, red trim, remote control vibrator, sex toy, shirt, shoes, sitting, sleeveless, sleeveless shirt, solo, star-shaped pupils, star (symbol), symbol-shaped pupils, tape, tape bondage, tile floor, tiles, tokiwadai school gym uniform, vibrator, vibrator cord, white shirt, white shoes, yellow eyes