watanabe akio, sengoku nadeko, bakemonogatari, monogatari (series), official art, scan, 00s, 1girl, bare shoulders, blue one-piece swimsuit, blush, body blush, breasts, brown eyes, brown hair, buttons, closed mouth, copyright name, covered navel, female focus, from side, full body, hand up, hat, hip focus, jacket, kneeling, legs apart, light smile, long sleeves, looking at viewer, mouth hold, name tag, newsboy cap, old school swimsuit, omamori, one-piece swimsuit, open clothes, open jacket, orange hat, orange jacket, outline, pocket, purple school swimsuit, raised eyebrows, salute, school swimsuit, shadow, sideways hat, small breasts, smile, solo, strap slip, swimsuit, tan, tanline, two-finger salute, unbuttoned, unworn jacket, white background