1girl, armpits, bed_sheet, black_shirt, blouse, blush, braid, braided_ponytail, breasts, brown_hair, cleavage, idolmaster, idolmaster_shiny_colors, kijibato_123-gou, kuwayama_chiyuki, lace-trimmed_shirt, lace_trim, looking_at_viewer, lying, medium_breasts, on_back, purple_skirt, see-through, see-through_cleavage, see-through_shirt, shirt, skirt, sleeveless, sleeveless_shirt, solo, sweat