also known as InuYasha the Movie: Swords of World Conquest) is a 2003 anime film directed by Toshiya Shinohara and written by Katsuyuki Sumisawa. It is the third film to be released in the InuYasha films series. It was released in Japan on December 20, 2003 (between episodes 136 and 137), and in the United States on September 6, 2005. It premiered on Adult Swim on August 12, 2006 and it aired in Canada on YTV on December 29, 2006.PlotThe film opens with events that happened at InuYasha's birth. The suitor Takemaru kills Lady Izayoi just before InuYasha's father arrives. InuYasha's father, still injured from his battle with Ryūkotsusei, arrives and resurrects Izayoi with the Tenseiga, telling her to escape with their son, whom he names as InuYasha and gives her the Cloth of the Fire Rat to protect them from the burning palace. InuYasha's father dies in the burning down of the castle as he moves to face Takemaru and draws his third sword.In the present era, Kagome's grandfather comes by with a sword which he calls a "national treasure"; as Grandpa is about to put it in the storehouse for "safe keeping", Kagome's younger brother goes over to the sword, and it speaks, or more accurately, the spirit of the sheath, Saiya. With his seven hundred year spell on the sword So'unga failing, Saiya seeks out InuYasha, hoping he has the willpower to control the sword. Unfortunately, he was mistaken, as it tried to possess InuYasha, but InuYasha tried his best to resist being controlled and finally brings the sword back to the past, but in the process unleashes the deadly Dragon Twister on an evacuated village, a technique far more powerful than the Tetsuseiga's Backlash Wave or the Tenseiga's Dragon Strike.