1girl, arknights, bare_shoulders, bikini, cup, detached_sleeves, hair_between_eyes, hair_intakes, hair_rings, holding, holding_cup, horns, long_hair, long_sleeves, looking_at_viewer, mouth_hold, purple_eyes, red_hair, solo, spoon, surtr_(arknights), surtr_(colorful_wonderland)_(arknights), swimsuit, tansuanmeizi, upper_body