Riko, Reg, and their new friend, Nanachi, continue their journey down the Abyss and arrive at the 5th layer. But in order for them to continue to the 6th layer, they must encounter the haunting figure of Nanachi's past: Bondrewd the Novel.

After departing from Ozen's camp, Riko and Reg continue their journey, encountering more dangers as they descend further into the Abyss.

When the emergence of a ninja with mysterious powers puts Kakashi in danger, Naruto and friends undertake a dangerous mission to save his life.