sawatani (chevalier 04056), i-400 (kancolle), kantai collection, highres, 1girl, black hair, blue one-piece swimsuit, blush, dated, headgear, long hair, looking at viewer, one-hour drawing challenge, one-piece swimsuit, open mouth, orange sailor collar, sailor collar, sailor shirt, school swimsuit, shirt, side-tie shirt, sleeveless, sleeveless shirt, smile, solo, swimsuit, swimsuit under clothes, tan, tanline, twitter username, upper body, white background, white shirt