The story is inspired by the apocryphal Book of Enoch, and follows Enoch (Shin-ichiro Miki/Blake Ritson), a scribe seeking seven fallen angels to prevent a great flood from destroying mankind. He is helped in his quest by Lucifel (Ryota Takeuchi/Jason Isaacs), a guardian angel in charge of the protection of the world who exists outside of the flow of time, alongside four Archangels: Michael (Kazuaki Yuguchi/Martin Glyn Murray), Gabriel (Atsuko Tanaka/Kirsty Mitchell), Raphael (Hirofumi Nojima/Adam Sopp) and Uriel (Hiroki Yasumoto/Chris Obi).