Long ago, during Archangel Lucifer's attempt to usurp Heaven, he sequestered the angelic part of his spirit into a jewel. This spirit, after falling to Earth and becoming trapped in a chalice, later becomes known as the Sangreal, or the Holy Grail.Throughout its time on Earth, the Sangreal observes humanity and waits for an enlightened human to return it to Heaven. However, after a millennium passes, Lucifer decides to regain the Sangreal to make...