Ruler of Nabari
Rokujou Miharu is a boy who has a hijustu (hidden technique) living inside of him. This hijustu is the power of creation. Many ninja clans are seeking it as the one who posesses it becomes the ruler of the ninja world. Rokujou's classmate Kouichi started a nindou ("Way of the Ninja") club at school with Kumohira, his English teacher. Both Kouichi and Kumohira are secretly ninjas. They tried to persuade Rokujou to join the ninjustu club. At first, he was reluctant, but after being attacked by group of ninjas trying to get his hijutsu, he joins. He must become the Ruler of Nabari in order to survive.
Set in the modern age, the story is about Rokujo Miharu, who just wanted to live a normal life and inherit a Okonomiyaki restaurant. At the moment, his biggest problem was the constant pestering from Kouichi Aizawa and Durandal Thobari Kumohira, who started a Nindō (忍道, Nindō? lit. "Way of the Ninja") Club. Miharu wanted nothing to do with "ninjas" and turns them down every time. But soon, he is attacked by an actual group of ninjas and is protected by Kouichi and Kumohira. There, Miharu learns of the hidden ninja world Nabari, the roles of his classmate and teacher in that world, and of the hijutsu Shinrabanshō (森羅万象, Shinrabanshō? lit. "all things in nature") within him. The hijutsu, containing all the world's knowledge, is sorely coveted after in Nabari. And because of that, Miharu cannot return to his normal life. He must become the "Ruler of Nabari" to survive.