1girl, animal_ears, arknights, ass, bare_shoulders, bikini, bridal_garter, brown_hair, closed_mouth, evening, eyjafjalla_(arknights), eyjafjalla_(summer_flower)_(arknights), floating_hair, flower, frills, from_side, gradient_sky, hibiscus, long_hair, looking_at_viewer, looking_to_the_side, nakatsuka123, off-shoulder_bikini, off_shoulder, official_alternate_costume, outdoors, pink_bikini, pink_sky, plaid, plaid_bikini, purple_eyes, red_flower, sheep_ears, sheep_girl, sheep_tail, sky, smile, solo, sunlight, sunset, swimsuit, swimsuit_cover-up, tail, wading, water, wind