omokage yugamu, sumino takumi, the hundred line -last defense academy-, chinese commentary, commentary request, 2boys, ahoge, belt collar, black collar, black hair, blue eyes, blue hair, blue jacket, blue tongue, collar, colored tongue, drawstring, earrings, erlenmeyer flask, eyepatch, fang, flask, green background, grey jacket, hhhzhe, holding, holding flask, holding test tube, hood, hood down, hoodie, jacket, jacket over hoodie, jewelry, long sleeves, male focus, multicolored hair, multicolored jacket, multiple boys, open clothes, open jacket, open mouth, piercing, print eyepatch, red hair, roots (hair), short hair, skin fang, smile, streaked hair, sweat, test tube, tongue piercing, two-tone hair, two-tone jacket, white hoodie