Episode 74

'''The Red Tetusaiga Breaks the Barrier! 'is 74th episode of the InuYasha'' anime.

Plot
As the bats attack the village, Inuyasha finds himself unable to break the barrier generated by Shiori, with Taigokumaru being protected inside. But the bat daiyōkai brags about having killed his own son, Shiori's father, because he threatened to abandon his duty as guardian if his fellow demon bats didn't leave the village in peace. Upon hearing this, Shiori expells her grandfather from inside the barrier in order to avenge her father. Inuyasha is then able to defeat the demon bat.

As they prepare to leave the village, Myōga urges Inuyasha to kill Shiori to obtain the barrier-breaking ability, but of course he refuses to murder an innocent girl, especially another half demon like him. So in gratitude, Shiori tells him to break the orb which created the barrier, so that the Tessaiga can suck its blood and absorb its power. The soul of Taigokumaru still lives inside the orb though, and attacks Shiori. Shiori is saved by the spirit of her father, who destroys the soul of Taigokumaru, thus putting an end to him for good. The Tessaiga then turns red as it absorbs the power of the orb, thus becoming the Red Tessaiga.