Board Thread:Theories and Speculation/@comment-3965545-20160511191323/@comment-3568954-20160512133340

a transmigrant of indra and asura can only be a direct blood descendant. so at the very least asura had a kid that started the senju and a kid that started the uzumaki. but because the fact is that obito referred to naruto and sasukes battle as a battle between uchiha and senju this must mean that the uzumaki is a branch family of the senju