1girl, arknights, bad_pixiv_id, ball, beachball, bikini, black_eyes, black_hair, eating, food, hair_ornament, hairclip, holding, ice_cream, innertube, jacket, jacket_over_swimsuit, kanzakimitoto, la_pluma_(arknights), la_pluma_(summer_flowers)_(arknights), long_sleeves, looking_at_viewer, off_shoulder, official_alternate_costume, pool, poolside, sandals, short_hair, sitting, solo, swimsuit, water, white_bikini, white_footwear, white_jacket