In the aftermath, the Box of Enlightenment is thrown into the ocean and Naruto returns to his comrades after burying Mui and Ryuzetsu.The warden, Mui, quickly seals away Naruto’s chakra to prevent him from rebelling. As Naruto nears death, Ryuzetsu uses a technique which sacrifices her life to save him. With Mui’s death, the prisoners are free from the Tenrou and attempt to escape from prison but are quickly recaptured. Muku then kills himself by using the Tenrou and Satori returns to the box after his death. Muku returns to his human form, has a short bonding experience with his father, and kills him when Satori regains control. Mui regains consciousness and seals Muku with the Tenrou which gives Naruto a chance for a direct attack. During the battle, Naruto and Ryuzetsu are fatally wounded. He is assisted by his peers from the Leaf Village and Cloud Village who were aware of the Hidden Grass’ plans. Naruto enters Sage Mode but is unable to defeat it. He fatally wounds his father, transforms into a monster, and goes on a rampage. Muku is released from the box and is possessed by the box’s demon, Satori (悟り?). Disregarding his collaborators commands, Mui asks the box to return his son. He is then captured by Mui and has his chakra extracted which unlocks the box.

They begin their plan by initiating a prison riot which distracts the guards and allows Naruto to find the room with the sealed box.

Naruto accepts her offer of collaboration to destroy the box before it is unsealed. Ryuzetsu also shares her plans to avenge her childhood friend Muku (無垢?), Mui’s son whom was sacrificed to the box ten years prior. She explains Mui and a select few from the Hidden Grass Village framed Naruto to imprison him so they may extract the Nine tails’ chakra to release the seal on the Box of Enlightenment which can grant any wish.

During his time in prison, Naruto befriends Ryuzetsu (竜舌?), a female ninja from the Hidden Grass Village pretending to be a male inmate.

Naruto blood prison ryuzetsu