Episode 180

A Complete Meidō is the 13th episode of InuYasha: The Final Act.

Plot
The demon Shishinki approaches Sesshōmaru for a fight, having been defeated by Sesshōmaru's father long ago. To Sesshōmaru's surprise, Shishinki attacks him using a complete Meidō Zangetsuha and claims Sesshōmaru's father stole the technique from him. Sesshōmaru attacks with his Meidō, but Shishinki's absorbs it. Inuyasha and his group arrive and after Shishinki attacks him, Inuyasha joins the argument. Shishinki taunts Sesshōmaru, telling him that he must have been shunned by his father if his half-human brother has Tessaiga as Tenseiga is just a cast off from it to contain the unneeded Meidō. As Sesshōmaru furiously wonders why his father did this, Shishinki attacks again. Inuyasha protects him with the Wind Scar, but Sesshōmaru punches him and tells him not to interfere. Sesshōmaru blindly charges Shishinki.

Miroku uses a paper charm to fire Myōga at Inuyasha so he can explain to Sesshōmaru that his father entrusted him with the Meido because he felt Sesshōmaru could master it, however Shishinki points out that he could have just given him Tessaiga instead of casting off Tenseiga. Sesshōmaru resumes his attack. When Inuyasha again comes to his aid, their swords begin resonating. When Sesshōmaru draws Tenseiga, he is able to launch a massive complete Meidō that swallows Shishinki. Inuyasha tries to tell Sesshomaru that Shishinki was lying, and that Tenseiga is a proper inheritance, but Sesshōmaru states that they are destined to fight one another the rest of their lives. Myōga states Sesshōmaru must have realized his father's true intentions.