Following his capture for attempting to assassinate the Raikage, the leader of Kumogakure, and for killing Jounin from Kirigakure and Iwagakure, Naruto is incarcerated in Houzukijou, a criminal containment facility also known as the Blood Prison. The castle's master, Mui, employs the ultimate imprisonment jutsu to steal power from the prisoners. Within this facility, something is aiming for Naruto's life. The battle to prove his innocence and uncover the truth has begun for Naruto and his friends.