1girl, black_hair, blue_eyes, bra, breasts, from_behind, gradient_background, grey_background, halo, large_breasts, long_hair, looking_at_viewer, looking_back, panties, ryouki_(senran_kagura), senran_kagura, sideboob, sketch, solo, underwear, underwear_only, upper_body, white_bra, white_panties, yaegashi_nan