Yoshitake Shiraishi (白石 由竹, Shiraishi Yoshitake) is one of the Abashiri Convicts that travels with Sugimoto's Group. He is a famous prison escapee who has escaped from numerous prisons all over Japan. His reputation gained him the nickname of the Escape King (脱獄王, Datsugoku-ō).
Shiraishi is an ordinarily built man whose upper body is covered in the tattooed map. He has light hair which he keeps in a buzzcut complete with sideburns and a small beard. If he grew out his hair, it would be slightly wavy. 
Shiraishi wears a purple hanten (winter jacket) which was given to him as a gift by a brothel girl who liked him. Underneath he wears western style clothes, a white shirt and a black vest.
Shiraishi is carefree and goofy and prefers to sneak his way out of trouble. Most of the time, Shiraishi lacks seriousness and prefers to spend time on frivolous pursuits like gambling or eating rather than looking for the gold. He also likes pretty women; his backstory involves him searching for a woman he fell in love with through a sloppy drawing. Shiraishi is a romantic, but he's never had a significant other and only had sexual relationships with prostitutes. 
Shiraishi has a roguish personality. Because he lacks strength, he prefers to flee danger, but he is confident in his ability to escape any bond. He tends to keep his calm when in danger as a result and given time, can psychologically dominate his guards and manipulate them. Shiraishi is sociable and easily makes friends and useful acquaintances, so while he was imprisoned he was often in contact with political prisoners and quite a few people who worked in intelligence.
Deliberate Injury Gambit: Shiraishi can easily dislocate his joints, enabling him to pass through narrow orifices or escape arm locks.
Escape Artist: Shiraishi's specialty — he's not only nimble or knows his way around locks, but exploits the organization of the prisons themselves to his advantage.
Professional Regurgitator: He keeps some items in his stomach he ties to his teeth for later regurgitation, such as a small razor blade, needle, wires or even cartridges.