100b 1girl absurdres alternate_costume arknights bare_legs black_dress black_footwear blue_eyes breasts closed_mouth commentary cross dress full_body high_heels highres holding horns huge_weapon invisible_chair jewelry long_hair looking_at_viewer medium_breasts necklace red_hair simple_background sitting sleeveless sleeveless_dress solo surtr_(arknights) sword thigh_strap thighs v-shaped_eyebrows very_long_hair weapon white_background