Under Ninja is an upcoming anime series that is set in a world where ninjas are not the heroes they are often portrayed as. Instead, they are the ones who are responsible for the dark side of the world, such as crime and violence. The story follows Kudo, a young ninja who is trying to escape from the dark world of the Shinobi. He is joined by a group of other ninjas who are also trying to escape. Together, they must face the dangers of the Shinobi world and find a way to break free.