There's Something Wrong with This Konoha

After Senju Kazuki came to the world of Naruto, he found that something was wrong. The Three Generations are dead, Danzo is dead, Mito Monobu, and Koharu are all dead... The current Fourth Hokage is Orochimaru. He, Senju Kazuki, was Tsunade's unmarried child. Jiraiya, on the other hand, had a daughter who was his childhood sweetheart at the same age. Who can tell me if there is something wrong with the way I traveled through time... This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.