Shinobi no Ittoki

Utterly normal middle school student Ittoki Sakuraba is fed up with having to take lessons every day and being monitored by childhood friend Kousatsu. Then one day, a beautiful girl named Tsubaki confesses feelings for him.

Ittoki arrives at the Ninja Academy. Meeting the kind and chipper Kirei and the beautiful and graceful Ryoko gives Ittoki hope about life at the Academy, but the Koga students influence threatens to make life miserable.

The practical exam is coming up. Since there are fatalities every year, Koga intends to use it as an opportunity to kill Ittoki. Ittoki questions world of ninjas. In preparation for a showdown with Suzaku, Kousetsu and Ittoki form a plan...

Suddenly, ninja leaders from all across Japan are summoned to a Ninja Grand Council. Yumika, Tokisada, and Kozo attend. Kogas Acting Chief also appears. Then, Goshogawara, head of the NSC, reveals the purpose of the Grand Council...

Koga attacks Iga village. Koga deploys a massive number of Asura, mechanical ninjas, in an attempt to force Iga into submission by overwhelming force. Against the ropes, Ittoki forms a plan to reverse Igas fortunes.

Ittoki decides to give the secret Ninja Core to Kidou. The Iga ninjas oppose it as a declaration of defeat. Kirei, Ryoko, and Suzaku find new resolve. Meanwhile, Igas traitor is making moves.