Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. Yasunori Kat is the fictional antagonist of the Japanese fantasy/historical fiction series Teito Monogatari (Hiroshi Aramata). Kat is an evil Onmyoji who was supposedly crafted from the resentful souls of the ancient mystics who lived during the Heian era. In the original novel, Kat is supposed to be a reincarnation of Taira no Masakado himself, who (in the story) had cursed the city of Edo just before his death. Kat is the result of that curse but he is completely unaware of it he believes that his destiny is to awaken Masakado''s vengeful spirit to destroy Tokyo, when in fact HE is the incarnation of that angry spirit carrying out the action of Tokyo''s destruction. Thus, he''s an incarnation of Masakado''s hatred for Edo joined with the power of the deceased Onmyoji from the Heian era, making him a nearly indomitable fusion of extremely powerful supernatural forces. Later on in the story, his power is also associated with Yama, the God of Death in contrast with his opponent, the shrine maiden Keiko Tatsumiya, who embodies the power of Kwannon the Goddess of Mercy.