2boys, belt, black_hair, black_pants, black_suit, brothers, dated, facial_hair, formal, green_background, kani6850, light_brown_hair, male_focus, multiple_boys, nanba_hibito, nanba_mutta, necktie, pants, red_necktie, short_hair, siblings, sitting, stubble, suit, sweatdrop, uchuu_kyoudai