1girl, bare arms, bedroom, black bra, black panties, blue rose sword, blush, bra, breasts, cleavage, closed mouth, commission, groin, hair intakes, indoors, long hair, lying, mysteryctu, navel, on bed, on side, panties, pillow, pixiv commission, red eyes, red hair, sheath, sheathed, shield, sideboob, small breasts, solo, sword art online, sword art online: alicization, tiese schtrinen, underwear, underwear only