1girl, d, ahoge, arms_behind_back, bare_arms, bare_shoulders, bikini, blue_footwear, blue_sailor_collar, blush, brown_eyes, brown_hair, hakozaki_serika, hand_up, idolmaster, idolmaster_million_live!, long_hair, multiple_views, outstretched_arms, sailor_bikini, sailor_collar, sandals, simple_background, sincos, smile, standing, swimsuit, twintails, very_long_hair, white_background, white_bikini