Gaku Sakamoto Days Rule 34 rule 34 1boy abs bara belt belt buckle bondage bound bound arms boxers chains collar earrings exposed torso gaku sakamoto days greyscale hair slicked back male male focus male only mask monochrome muscular muscular male muzzle object muzzled obliques open pants pants pecs pectorals pubic hair restrained sakamoto days sato pict scar shirtless six pack solo solo male topless male underwear unzipped veins 7142661