Brave 10 (ブレイブ・テン) is a story about Ninja and Samurai, takes place in an era of war. Directed by Kiyoko Sayama (佐山 聖子). Isa Nami (伊佐 那海) is the miko from Izumo, she needs to escape from being chased. As a result, the head of the Institute has to sacrifice his life to help Isa Nami survive from being chased, but before he died, he asked her to preserve an important piece and told her go to find a man named Sanada Yukimura (真田 幸村) lord of Ueda castle.
While Isa Nami is being attacked, a young ninja who holding a big sword has come to help her. He named Kirigakure Saizo (霧隠 才蔵), Isa Nami begged Saizo in order to help lead her to meet with Yukimura. In fact, Isa Nami has some hidden mysteries as well. The story of Isa Nami and Saizo will be like? What are the obstacles they have encountered? The mystery hidden in Isa Nami is? Please follow these stories in Brave 10.