1girl, ahoge, arknights, bad_pixiv_id, bare_shoulders, bikini, bikini_skirt, black_hair, blurry, blurry_background, breasts, cleavage, feather_hair, goggles, goggles_around_neck, holding, jacket, jacket_over_swimsuit, la_pluma_(arknights), la_pluma_(summer_flowers)_(arknights), lanyard, large_breasts, long_sleeves, looking_at_viewer, mouth_hold, navel, official_alternate_costume, open_clothes, open_jacket, parted_bangs, shibuya_(kurokamishain), short_hair, solo, string_bikini, swimsuit, thigh_strap, thighs, water, whistle, white_bikini