1girl arknights artist_name ball bangs beachball bikini black_eyes black_hair character_name commentary foot_out_of_frame goggles goggles_around_neck hair_bun hair_ornament hairclip highres holding holding_ball holding_beachball jacket jacket_over_swimsuit la_pluma_(arknights) la_pluma_(summer_flowers)_(arknights) long_sleeves looking_at_viewer medium_hair mouth_hold off_shoulder official_alternate_costume open_clothes open_jacket single_side_bun solo swimsuit thigh_strap umeno_shii water_drop whistle white_bikini white_footwear white_jacket