1girl, arona_(blue_archive), blue_archive, blue_eyes, blue_hair, blue_shirt, cika_k, colored_inner_hair, halo, headband, holding, holding_letter, holding_umbrella, letter, long_sleeves, looking_at_viewer, medium_hair, mismatched_pupils, multicolored_hair, outdoors, pink_hair, rain, sailor_collar, shirt, skirt, smile, standing, standing_on_one_leg, umbrella, white_footwear, white_skirt