1girl, 2boys, ahoge, aqua_eyes, black_eyes, black_hair, blonde_hair, blood, blood_on_clothes, blood_on_knife, blood_on_weapon, blue_eyes, cage, formal, grey_hair, hair_between_eyes, hair_bun, holding, knife, long_hair, multiple_boys, necktie, no_headwear, red_background, reverse_grip, suit, weapon