Naruto: Tsunade's Disciple Defected

In the 37th year of Konoha, after the Sannin battle with Hanzo, Jiraiya decided to stay in the Land of Rain to take care of three war orphans. Tsunade and Orochimaru met Cangwu Xingye on their way back to the village... In the 60th year of Konoha, Sogo Hoshiye killed the Third Hokage and defected from Konoha... No one knew why Cangwu Xingye, the noble son of the ninja world, did this. After all, he was the most promising person to be the fifth Hokage. And Cangwu Xingye is just a starry sky traveler who is troubled by emotions...