Board Thread:Rebirth: Applications/@comment-8341759-20141109042010/@comment-4869113-20141113225530

I have no clue why Tobirama would feel the need to seal his soul and chakra into a book. He was born in an era where children died. Having children or a successor was probably never on his mind. But even without that, you forgot one big thing. He did have a successor. Hiruzen Sarutobi was his successor. They knew that from the beginning.