Stream anime episodes online for free, Watch Gilgamesh Episode 1 English version online and free episodes. Anime Episode guide, Chapter Gilgamesh Episode 1 English dubbed The Prelude We first learn of the state of the world thanks to a narration by Tatsuya. Also we meet the main characters Tatsuya and Kiyoko who are on the run from debt collectors. We also are introduced to Sex, Octo and Novem. The first three of the Gilgamesh we meet. We also see the heaven’s gate facility for the first time.