yami (m31), johnston (kancolle), johnston kai (swimsuit) (kancolle), kantai collection, highres, 1girl, adapted turret, bikini, black neckerchief, black sailor collar, blue bikini, breasts, brown eyes, brown hair, choker, cleavage, feet out of frame, long hair, medium breasts, neckerchief, one-hour drawing challenge, open mouth, sailor bikini, sailor collar, simple background, solo, star (symbol), star choker, swimsuit, two side up, white background