This System Rewards More Than 100 Million Points

Sengoku novels all talk about the unification of samurai and civilians during the Warring States Period, but are there any unifications of ninjas? Xiaotou was originally an otaku in later generations, and then inexplicably came to the Warring States Period and became a ninja named Danzo. He also carried a system called Fifty Years in the World, and then began his own journey to become a king. There is no such thing as a samurai daimyo. The daimyo sent ninjas to attack me and fight back. In this way, Danzo's ninja power grew stronger and stronger, and finally Danzo became the master of the world. This is a novel about ninjas in the Warring States Period of Japan. Please criticize and correct any shortcomings. This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.