It seem Ginjou Kuugo and his group "Excution" have rough security method. It almost like an secret agent in a mobsters style and their purpose for recruiting Ichigo is to restore his Shinigami power!? For what reason they want Ichigo back in line of Duty? and what happen to Sadou? It seem lot of mystery in this lost agent ark that might reveal the past of Isshin(Ichigo's Father) past or the one who attacking human's with powers.