Naruto: I Have a Fighting Spirit Training System

During the first great ninja war, Senju Tobirama was forced into a desperate situation by Golden Kaku Ginkaku, and he used Uchiha Reincarnation to reincarnate his former enemy Uchiha Izuna into Uchiha Reincarnation to resist. But what he never expected was that Uchiha Izuna's soul had been replaced by a 21st century Naruto lover, Chen Xi And Chen Xi is not simple either. He once traveled through Douqi Continent, and when he became Dou Emperor, he was poisoned by the Purple Sky Divine Thunder summoned by the system. The reason is that the system can only be activated after death. Let's see how he, who traveled through time as Uchiha Izuna, used the Douban system in the world of Naruto to reach the top of the ninja world. This is my second time writing about Naruto, please support me. This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.