1girl, barefoot, bed, blanket, blue_archive, blush, dress, feather_hair, halo, hat, imonoiruku, leg_up, lying, nurse, nurse_cap, on_back, on_bed, one_side_up, pillow, pink_dress, pink_hair, serina_(blue_archive), serina_(nurse)_(blue_archive), short_hair, solo, thighs