buriki, hasegawa kobato, hasegawa kodaka, kashiwazaki sena, kusunoki yukimura, mikazuki yozora, shiguma rika, takayama maria, boku wa tomodachi ga sukunai, striped, highres, novel illustration, official art, scan, 10s, 1boy, 6+girls, arms up, bikini, black hair, blonde hair, blue bikini, blue eyes, blush, bodysuit, breasts, brother and sister, brown eyes, brown hair, cleavage, fang, flat chest, flip-flops, floral print, flower, front-tie top, glasses, groin, hair flower, hair ornament, heterochromia, large breasts, long hair, multiple girls, navel, old school swimsuit, one-piece swimsuit, sandals, school swimsuit, short hair, siblings, side-tie bikini bottom, stuffed animal, stuffed toy, swimsuit, swimsuit under clothes, white hair, white one-piece swimsuit, white school swimsuit