2girls, d, ahoge, bikini, black_hair, blue_eyes, blue_sailor_collar, blush, bow, breasts, brown_eyes, brown_hair, cheek-to-cheek, collarbone, dannd, dot_nose, hair_ribbon, heads_together, idolmaster, idolmaster_million_live!, idolmaster_million_live!_theater_days, indoors, interlocked_fingers, looking_at_viewer, multiple_girls, nakatani_iku, navel, neckerchief, one_side_up, open_mouth, ribbon, sailor_bikini, sailor_collar, sailor_swimsuit_(idolmaster), short_hair, side-tie_bikini_bottom, small_breasts, smile, standing, suou_momoko, sweatdrop, swimsuit