About Eikichi Onizuka, a 22-year-old ex-gangster member and a virgin. He has one ambition that no one ever expected from him. His solely life purpose is to become the greatest high school teacher ever.

In modern Japan where the way of ninja is still practiced secretly, Recca discovers that he has a power to manipulate fire. Eventually he meets people who also has strange power, and he soon has to overcome his past and face his destiny.

She may be cute. She may be young. She may seem innocent and naive, but don't be fooled. She's a cold-blooded killer, and if you're on the wrong side of the law, you may be her next target....

Ever since their parents died a few years ago, Ryo and his sister Akane have been living alone together. Despite their difficult situation, they are still living reasonably happy and normal...