The sneaking ninjas in the dead of night have certain secrets. These ninjas are on a mission. They detest the inequality in the lands and decide to do something about it. Providing for the poor and stealing from the rich is their purpose, but they are yet to face a true evil among them, another ninja who stands in their way and seeks nothing else but to destroy these benevolent guys. Follow the diary of the three fighting ninjas who stay in the shadows and become more than just vigilantes. Or are there four ninjas? This story is full of surprises.