1girl, bikini, black_bikini, breasts, brown_eyes, hair_between_eyes, hands_on_own_chest, idolmaster, idolmaster_shiny_colors, landel, looking_at_viewer, medium_breasts, navel, open_mouth, osaki_tenka, red_hair, short_hair, side_ponytail, sidelocks, simple_background, solo, swimsuit, wavy_mouth, white_background