sumino takumi, the hundred line -last defense academy-, artist request, chinese commentary, commentary request, commission, second-party source, 1boy, :<, animal ears, antenna hair, black hair, blue eyes, blush, blush stickers, cat ears, chinese text, closed mouth, drawn ears, drawn whiskers, drawstring, grey jacket, heart, hood, hood down, hoodie, jacket, jacket over hoodie, male focus, multicolored hair, open clothes, open jacket, portrait, red hair, short hair, simple background, single blush sticker, solo, speech bubble, streaked hair, two-tone hair, watermark, weibo watermark, white background, white hoodie