Nanbaka

Nanba Prison is a maximum-security facility housing some of the world's most skilled and cunning inmates, including Juugo, a seasoned lock specialist; Uno, a gambler with exceptional intuition; Nico, an otaku whose unusual physical response to drugs makes life in prison complicated; and Rock, a physically imposing individual with a love for food. These four prisoners, all of whom have escaped from previous facilities, occupy Cell 13. Supervisor Hajime Sugoroku is tasked with keeping them contained.