Why Tobirama was the biggest perv?
The geeky gizmo kid of the family who unlike his brother wasn't gifted with immense strength of a immeasurable magnitude but with absolute genius. He created the technique of Edo Tensei which brought people back from the dead and also apparently created/was the master of space time ninjutsu.
Tobirama always craved the approval of his father, once he told his father "I can transcend life and death, i can warp both senior sovereigns of the universe, space and time around my very presence"
His father simply replied "Can you claim to be the strongest shinobi of our time?" "No just no, you are Izuna to Madara, the second born!!!!!"
He also apparently died a virgin
Hipster Madara also made me realize that:
hiruzen----> jiraiya ---> kakashi? ----> Naruto (actually from jiraiya but whatever)
so i think tobirama started the pervertedness >_<
Now everyone doubts Tobirama's morals for creating a kinjutsu which defies life and death so the only possible reason could be to revive edo's of women and control them so that he could...well you know how the story goes.