1girl, armpits, arms_up, bed_sheet, black_hair, blush, bow, bow_bra, bow_panties, bra, breasts, brown_eyes, closed_mouth, looking_at_viewer, lying, matsunaga_kouyou, nose_blush, on_back, original, panties, pleated_skirt, purple_skirt, shirt, skirt, small_breasts, solo, underwear, white_bra, white_panties, white_shirt