1girl, animal_ears, black_one-piece_swimsuit, eyewear_on_head, gold_ship_(run_revolt_launcher)_(umamusume), gold_ship_(umamusume), holding, holding_water_gun, horse_ears, horse_girl, kishiro_azuhito, looking_at_viewer, number_pun, official_alternate_costume, one-piece_swimsuit, one_eye_closed, purple_eyes, smile, solo, sunglasses, swimsuit, umamusume, water_gun