One thing that the time travel doesn't click with me, is why left Enma and Ame back? Sure he gave it to Toki so as for Orochi not to confiscate it. But to time travel, don't you like, need Toki to be there to send you? Then why didn't she give Enma and Ame back to Oden? Why did Oden decide to time travel to the future where Kaidou got even stronger, without his 2 strongest Swords?