Kousuke Okano

Sawa, orphaned as a child by murderous thugs, now targets the scourge of society as a trained killer for a mercenary syndicate. Coquettish and capable of unimaginable violence, she's grown into the perfect weapon — but doubt takes hold in Sawa's mind when her fellow assassin, Oburi, decides he wants out.

At the Ninjutsu Academy, Doi teaches young ninjas known as "Nintama." One day, he goes out for a battle against a ninja from the rival clan, but vanishes without a trace. The Nintamas worry for Doi's safety. At the same time, the Academy receives troubling news that their rivals at Dokutake Castle may be scheming something.