In the third move "The Sword Of World Conquest" it showed that inyasha's father died right after his mother gave birth. How it happened u say? Well right before Inuyasha's mother gave birth some guy who loved her tried to kill her with a spear. Moments later Inuyasha's father came used the Tenseiga and saved Inuyasha's mother. But than the house was hit by fire arrows and burning and the guy who tried to kill Inuyasha's mother came to kill her but just before the burning house fell Inuyasha's father told them to run and call the baby Inuyasha.
Submitted by theguyulove