1girl, ahoge, alternate_costume, bikini, black_bikini, blush, breasts, brown_eyes, brown_hair, collarbone, cropped_legs, hand_on_own_chest, huge_ahoge, idolmaster, idolmaster_shiny_colors, kuwayama_chiyuki, large_breasts, looking_down, multi-strapped_bikini, navel, out_type_(outtypeex), ponytail, solo, stomach, strap_gap, swimsuit, white_background