The Big ImageBoard (TBIB) - 2boys animal collar arms behind back bound bound wrists chengongzi123 clenched teeth collar dark-skinned male dark skin facial hair full body furrowed brow goatee stubble golden kamuy greyscale with colored background highres kneeling koito otonoshin leash long sleeves looking to the side male focus military uniform multiple boys muzzle open mouth red background short hair simple background stubble teeth tsukishima hajime uniform very short hair