1girl, black sailor collar, black skirt, black socks, brown eyes, brown hair, cannon, cloud, feet out of frame, folded ponytail, horizon, kneehighs, long hair, machinery, neckerchief, ocean, outstretched arms, pleated skirt, red neckerchief, sailor collar, sailor shirt, school uniform, serafuku, shield, shirt, skirt, socks, solo, turret, white shirt