1girl, ahoge, animal_ear_fluff, animal_ears, arknights, arm_up, ass, back, ball, bare_shoulders, beachball, bikini, bird, black_bikini, blue_eyes, blue_sky, day, extra_ears, feet_out_of_frame, fish, fox_ears, fox_girl, fox_tail, from_behind, hair_ornament, hairclip, headphones, innertube, lens_flare, looking_at_viewer, looking_back, official_alternate_costume, outdoors, palm_tree, parted_lips, partially_underwater_shot, purple_hair, seagull, see-through, short_hair, sky, solo, sun, sussurro_(arknights), sussurro_(summer_flower)_(arknights), swimsuit, tail, tail_through_clothes, tree, tropical_fish, wading, water, zheshe_jing