My name is Tou-gyou. I am the King of Tong-nou. Rin, I too have been set free with your Katana. Tong-nou is not a world where souls are devoured. It calls forth the troubled souls to stabilize and purify. It was an island of purification. But, King-gyou, Sui-gyou, Moku-gyou and Ka-gyou discovered the use of human souls. They united to tear me into eight pieces and scattered my parts in eight directions. The eight pieces of my body were dispersed all over the Tong-nou World. I called for a strong soul to gather my pieces. Again and again, I called out for a strong soul to perform the rescue. But unfortunately, these souls could not withstand the force of the four Kings and were devoured. The last soul I called for was the ninth one, which happened to be yours.
— Eastern Mind: Lost Souls of Tong-Nou
by Osamu Sato