Tobari's revelation of the truth that he has held so close to his chest for the past decade restores the missing memories of the events that came to pass on that fateful night. Miharu's mother once violated the laws of the Hidden World to save her son, and as the removal of the secret art gets underway, Miharu's life is threatened once more. The final battle dawns, and history seeks to repeat itself, sealing the fates of the ninja of the Nabari realm forever.
Yuhki Kamatani's debut work, NABARI NO OU, was a finalist in the 2005 Japan Media Arts Festival in the "Story Manga" category. The series' popularity later led to its popular anime adaptation.