1girl, alternate_costume, ass, black_one-piece_swimsuit, blush, braid, breasts, gin00, grey_hair, idolmaster, idolmaster_shiny_colors, looking_at_viewer, one-piece_swimsuit, round_teeth, serizawa_asahi, short_twintails, simple_background, small_breasts, smile, solo, standing, swimsuit, teeth, twin_braids, twintails, twisted_torso, watermark, white_background