guco (gco h), maruko gaku, sumino takumi, the hundred line -last defense academy-, commentary request, highres, 2boys, ahoge, arms between legs, barefoot, blush, closed mouth, cosplay, costume switch, drawstring, expressionless, greyscale, hair through headwear, hat, hat ornament, hood, hood down, hoodie, jacket, jitome, long sleeves, male focus, maruko gaku (cosplay), monochrome, multicolored hair, multiple boys, open clothes, open jacket, open mouth, pants, parted bangs, sanpaku, shirt, short hair, shorts, simple background, sitting, smile, star (symbol), star hat ornament, streaked hair, sumino takumi (cosplay), thigh strap, two-tone hair, wariza, white background