1girl, arms_behind_back, black_socks, blush, breasts, brown_hair, full_body, heart, high-waist_skirt, idolmaster, idolmaster_shiny_colors, long_hair, looking_at_viewer, medium_breasts, osaki_amana, shirt, sikimosh, simple_background, skirt, sleeveless, sleeveless_shirt, smile, socks, solo, straight_hair, very_long_hair, white_background