1girl, 2020, bangs, black hairband, blonde hair, blush, breasts, chaamii, chitose sana, closed eyes, collarbone, double bun, dutch angle, footprints, hair between eyes, hair bun, hair intakes, hairband, happy birthday, head tilt, jacket, long hair, looking at viewer, neckerchief, ocean, open mouth, outstretched arm, pleated skirt, red sailor collar, sailor collar, sand, school uniform, serafuku, sidelighting, sidelocks, signature, skirt, small breasts, smile, solo, sunlight, tenshinranman, white jacket, white neckerchief, white skirt, yuzu-soft