1girl, black_hair, black_skirt, blue_panties, brown_eyes, clothes_lift, collared_shirt, looking_at_viewer, lying, matsunaga_kouyou, on_back, original, panties, parted_lips, school_uniform, shirt, short_hair, short_sleeves, skirt, skirt_lift, socks, solo, striped, striped_panties, thighs, underwear, white_shirt