Antagonist with most interesting backstory?

[Adzamega]

Nagato.
Their lives closely related to Jman.
Jiraiya :NO:

 

[ballerjordan]

Orochimaru has the most interesting back story. I also wondered why the f*ck he looks the way he does, we never got to see his parents either.

 

[Moe22]

Kabuto! That kid went through some crazy stuff...

 

[paratise]

I think Kabuto takes this; but each for their own. I also think Kisame had a great background.

 

[Draphsin]

Obito, I still want to know what he did as mizukage