1girl, armpit_crease, armpits, atte_nanakusa, blush, closed_mouth, greyscale, hands_up, hat, head_tilt, heart, idolmaster, idolmaster_cinderella_girls, kindergarten_uniform, loli, long_sleeves, looking_at_viewer, monochrome, open_clothes, open_shirt, sakurai_momoka, simple_background, skirt, smile, solo, spread_armpit, sweat, white_background