By chaining together extra turns with Walk the Aeons, you create the necessary window for Kiki-Jiki, Mirror Breaker to repeatedly work its magic. On each of your turns, Kiki-Jiki taps to create a token copy of Vampire Charmseeker, whose enters-the-battlefield trigger fishes Walk the Aeons right back out of your graveyard. Since Kiki-Jiki grants haste to the token, you don't have to wait around to use it, ensuring that Vampire Charmseeker is always ready to recur your extra-turn spell and lock the table out of the game indefinitely.