sumino takumi, the hundred line -last defense academy-, chinese commentary, commentary, commentary request, commission, english commentary, mixed-language commentary, 1boy, :/, alternate hairstyle, armband, black hair, blue eyes, closed mouth, curtained hair, hair between eyes, jacket, jt dadi, long sleeves, male focus, multicolored hair, official alternate color, red hair, sample watermark, short hair, solo, streaked hair, two-tone hair, upper body, watermark, white armband, white jacket