Board Thread:Fanon Canon 2/@comment-2001574-20140921163723/@comment-28861328-20140923034121

His obtaining Rinnegan is impossible without a Sharingan. Orochimaru's research proves it is a direct evolution of the Sharingan and Hagoromo himself said he left a warning to the Uchiha clan because he feared that Indra's descendants would recreate the Rinnegan. Without a Sharingan, a Rinnegan cannot canonically develop from this situation.