aotsuki eito, sumino takumi, the hundred line -last defense academy-, 2boys, ahoge, black gloves, black jacket, black pants, blood, blood on clothes, blood on face, blood on gloves, gloves, grey hair, headgear, holding, holding behind back, holding knife, holding knife behind back, jacket, kiss, knife, male focus, multiple boys, pants, pocket, r314dor, red hair, short hair, simple background, white background, white jacket, yaoi