1boy, backpack, bag, black footwear, black hair, blue background, blue eyes, blue headwear, blue shorts, flute, full body, grey socks, halo, hat, instrument, kneehighs, male focus, music, playing flute, playing instrument, randoseru, recorder, red bag, sailor collar, sailor hat, sailor shirt, shirt, short hair, short sleeves, shorts, simple background, socks, solo, very short hair