1girl, arknights, bare_shoulders, barefoot, bikini, black_bikini, blue_sky, blush, closed_mouth, cloud, contrail, day, detached_sleeves, full_body, hair_intakes, horizon, horns, huge_weapon, long_hair, long_sleeves, looking_at_viewer, lying, navel, ocean, on_stomach, outdoors, palm_tree, puffy_long_sleeves, puffy_sleeves, purple_eyes, qiushannan, red_hair, sky, solo, surtr_(arknights), surtr_(colorful_wonderland)_(arknights), swimsuit, swimsuit_cover-up, sword, thigh_strap, tree, very_long_hair, water, weapon