1boy, 1girl, black headwear, black skirt, blue eyes, blue hair, blue neckerchief, cherry blossoms, clenched hands, closed mouth, collarbone, day, falling petals, holding, holding letter, letter, long hair, neckerchief, official alternate costume, outdoors, petals, raised eyebrows, sailor collar, school uniform, shirt, skirt, sleeve cuffs, solo focus, tree, twintails, white shirt