1girl, arknights, arms_up, aweii, bare_arms, black_cat, black_dress, black_hair, black_thighhighs, blacknight_(arknights), braid, cat, dress, feet, foot_out_of_frame, indoors, long_hair, lying, no_shoes, on_back, pelvic_curtain, sleeveless, sleeveless_dress, solo, tail, thighhighs, thighs