Episode 6

Tetsusaiga, the Phantom Sword is the sixth episode of the InuYasha anime.

Synopsis

 * 1) Sesshōmaru is finally able to locate the Inu no Taishō's tomb, in a Black Pearl behind Inuyasha's right eye.
 * 2) The treasure that Sesshōmaru had been speaking of is revealed to be a sword forged from the fang of the Inu no Taishō, the Tessaiga.
 * 3) Neither Sesshōmaru nor Inuyasha are able to pull out the sword; to everyone's shock and surprise, Kagome is the one who is ultimately able to.

Summary
Kagome is still paralyzed. Inuyasha's mother tells him that she has to go back to the netherworld. She takes a flower and tosses it into the pond they were by. The flower breaks into petals. She tells him to look into the water. He sees himself as a kid chasing after his ball across a bridge. He then runs into his mother's arms. They are seen sitting together at the edge of a pond, and his mother hugs him tightly, reminding him that was how she used to embrace him when he was little.

Inuyasha's "Mother" (who is actually just an illusion of his mother), who has hugged him and kept him in an illusion tries to absorb him into her body. Jaken comes out of nowhere and tells her not to do so until they find out where his father's tomb is. Jaken tells her to ask Inuyasha where his father's grave is. Inuyasha is pushed into the "water" (something that it is merely an illusion) and he says that he sees a black pearl to the right. Jaken doesn't know what he's talking about, and says to look deeper. The Unmother then says if she goes any deeper than Inuyasha's soul will be shattered, but Jaken says he doesn't care as long as they have the information they need.

Kagome is woken up by Myōga who sucks her blood and she realizes that she's less paralyzed then she initially thought. Myōga tells her that the woman is the Unmother who feeds on the souls of lost children. Myōga shows Kagome the reflection in the water and they see the Unmother holding Inuyasha when he was a kid. Kagome finds Jaken and strikes him sending him flying into the water and then takes the staff of two heads before she chases after the Unmother, and splashes the reflection which causes the Unmother to release Inuyasha. Sesshōmaru appears and tells them that he knows where the tomb is located.

As Inuyasha attacks Sesshōmaru, Sesshōmaru grabs his neck and stabs two fingers into Inuyasha's right eye, drawing out a small black pearl. Inuyasha attacks Sesshōmaru again, but he dodges and attacks Inuyasha. Just when he is about to strike him, the Unmother blocks Sesshōmaru and takes the fatal blow instead. Myōga says that even though she has no children, she has the heart of a mother and wanted to protect Inuyasha. Sesshōmaru tells Jaken to come to him and Jaken gives him the Staff of Two heads. He places the bottom of it onto the pearl, and the face of the old man on the staff laughs and opens a portal to the netherworld. Sesshōmaru and Jaken enter the portal with Inuyasha, Kagome, and Myōga quickly following behind.

They enter into the netherworld, which turns out to be demon lord's grave. Skeletal vultures circling the humongous skeleton in armor which happens to Inuyasha's father. Inside the skeleton Sesshōmaru and Jaken have found what they've been looking for; the Tessaiga, a sword that was made from the fang of Inuyasha and Sesshōmaru's father's own mouth. When Sesshōmaru grabs the hilt of the sword, he isn't able to pull it out, and realizes that his father but up a barrier. Inuyasha and Kagome and Myōga find him and Myōga tells him to get the sword, revealing it was always intended that Inuyasha inherit the sword after his father passed, which should be proof enough for him to be able to get it out. Inuyasha doesn't think he should bother taking the sword taking in its rusty appearance remarking that it couldn't even cut wet paper. But Myōga insists he pull it out, but Inuyasha cockily says his brother can keep "the rusty piece of junk," and attempts to battle his brother again, but fails and Myōga says he cannot fight unarmed and must get the sword. This time Kagome encourages him to "get the dumb sword," and if he can't hit Sesshōmaru's body then to hurt his ego, convincing Inuyasha to pull out the sword. But when Inuyasha does try, he sees that he isn't able to get it out either despite his best strength.

Sesshōmaru loses his patience and attacks Inuyasha while Kagome fights Jaken, having gotten annoyed with him. After getting distracted, Sesshōmaru gets a hold of Inuyasha and is prepared to strike him. Jaken overwhelms Kagome when he knocks his staff into her gut and she places her hand on the sword's handle to steady herself. Sesshōmaru intrudes his poison claws to Inuyasha and just when he is about to kill him, Kagome notices and calls out Inuyasha's name and in the midst of her emotions, yanks out the sword shocking everyone including herself. The episode ends with Kagome thinking, "Now what?"

Quotes
Inuyasha: "You bet I'm not—" (lunging to attack Sesshōmaru) "—YOU BASTARD!" Inuyasha: "Who are you to talk?! You're the one trying to rob his grave!"
 * Sesshōmaru: (referring to his using Unmother) "It was just a joke. You're not amused?"
 * Sesshōmaru: (in regards to Inuyasha's noisy entrance) "This is our father's resting place. Be more respectful!"
 * Inuyasha: (To Sesshōmaru) "Good thing you're in a grave! Cause you're gonna die!