The Gotei 13 War Games had been subjected to several incidents over the centuries. * Murder of Yukio Hoshimitsu * Kei Yume, Masaki Satō, Nerine Amamine forced to flee to the World of the Living after being framed by Shuten Tamane, the true culprit. * Mysterious death of Ninth Division Captain Kousetsu Tora several years later, followed by the disappearance of Shuten Tamane.