1girl, arknights, arm_behind_head, bare_shoulders, bikini, bow, bowtie, bracelet, breasts, detached_sleeves, frilled_bikini, frills, hair_between_eyes, halterneck, horns, jewelry, large_breasts, lingshalan, long_hair, looking_at_viewer, ocean, official_alternate_costume, outdoors, purple_eyes, red_hair, sitting, smile, solo, surtr_(arknights), surtr_(colorful_wonderland)_(arknights), swimsuit, thigh_strap, thighs, tree, very_long_hair