[Original-world natives, no transmigrators, various heavily altered settings]
Everything they do is for the sake of that perfect ending.
In Konoha Year 14, a second Nine-Tails rampage occurs, following the one caused by Madara Uchiha.
The Second Hokage, Tobirama Senju, is unexpectedly reborn. In the early days of Konoha’s founding, he decides to eliminate the two sources of disaster before they can cause trouble in the future. But little by little, he realizes that his rebirth may not have been a coincidence…