Board Thread:Naruto Discussions/@comment-12509038-20140806073433/@comment-4271790-20140807020328

Jashin Uchiha wrote: It only drains non-Uchihas more because they can't turn it off Actionmanrandell is right. This time the eyes weren't implanted like Kakashi before or Nagato. The chakra in Obito's optic nerves, plus his own chakra reserves, were transferred to Kakashi. And Obito said they might be temporary, so Kakashi can turn it off.