InuYasha: The Final Act

Hakudoshi plots with Kagura and Goryomaru to bring down Naraku. However, Naraku is already aware of their betrayal through Kanna's Mirror. As part of the deal with Hakudoshi, Kagura is supposed to get the Sacred Jewel shard out of Kohaku's back, but Kagura is moved by Kohaku's search for revenge and allows him to escape. Seeing that Kagura has betrayed him as well, Hakudoshi tries to kill her but she is saved by InuYasha. As Hakudoshi fights InuYasha, the poison insects come to his rescue. However, Naraku abandons him and Hakudoshi is sucked in by Miroku's Wind Tunnel.

Having been saved by InuYasha and his friends, Kagura tries to escape Naraku and he offers to return her heart to her. Meanwhile, Kikyo summons the soul of Midoriko to restore her powers. She explains to InuYasha that in order to destroy Naraku, his soul must be purified. Koga completes a series of trials to obtain the Goraishi, a treasure of his clan. While Sesshomaru battles Moryomaru, Naraku returns Kagura's heart, then immediately impales her on his tendrils, injecting her with miasma and leaving her on the brink of death. She manages to float away on a feather, landing in a meadow filled with flowers, where she listens to her newly-returned heart beat in her chest. Smelling Kagura's blood, Sesshomaru quickly finishes his battle, shattering his sword the Tokijin in the process. He finds Kagura in the flower field just as she dies. Her body dissolves into dust and her feather hairpin floats away on the wind, signifying that she is now free. InuYasha and his friends arrive too late, and when InuYasha asks Sesshomaru if Kagura had suffered, Sesshomaru replied, "She was smiling."

Toutousai approaches Sesshomaru and tells him that he can now reforge the Tenseiga into an offensive weapon. InuYasha's group find a temple where fox demons play tricks on others to try to advance in demon rank. After accidentally entering the test, Shippo plays tricks on InuYasha, who clobbers him. Shippo retreats into the forest where he meets a girl named Mujina whose sword can absorb the demonic energy of InuYasha's Tessaiga. She uses the energy to attack him, but her will is too weak and she is defeated. Meanwhile, Sesshomaru learns the Meido Zangetsuha technique, which cuts a small path to the netherworld and sends one's opponent there directly. In the present, Kagome's grandfather tells her that the Shikon Jewel can only be erased from the world if one makes the right wish.

InuYasha's group rescues a swordsmith named Toshu from the demon Ryujin, who is angered that Toshu has not completed crafting Dakki, a sword designed to absorb other's demonic energy. Toshu later uses the sword to absorb Ryujin's power, then battles InuYasha and steals the demonic energy from Tessaiga. However, the demonic energy is too powerful and kills him. The energy of the sword returns to Tessaiga, giving it the ability to absorb demonic energy. Meanwhile, a wolf-demon named Kai tricks Koga into helping him, seeking a Shikon Jewel shard to rescue his younger brother from the demon Byakuya, one of Naraku's newest incarnations.

With Tessaiga's new ability, Toutousai sends InuYasha to a demon hermit named Yorei-Taisei to train so he can use it without it backfiring. When InuYasha reaches the village, he undergoes a test by the hermit designed to help InuYasha discover the existence of whirlpools of demonic energy that InuYasha can cut to defeat his enemies. Meanwhile, Moryomaru devours two demon twins and obtains their incredibly strong and powerful demonic abilities.

Naraku absorbs a demonic tree that grants him the power and ability to penetrate all demonic barriers. InuYasha, and friends attempt a confrontation, but Naraku flees without a fight. Kikyo and Kohaku pursue the rest of the nearly completed Shikon Jewel, and meet Koga for the first time. As InuYasha's gang arrives at the mountain, Moryomaru meets Naraku and prepares to attack him. Though Koga and InuYasha work together to try to stop him, Naraku tricks Moryomaru into absorbing him, allowing him to penetrate Moryomaru's tough defenses and letting him absorb Moryomaru from the inside out, and reclaiming the Infant as his visible heart. Kikyo wants to use Kohaku's shard to attack Naraku. To protect him, Miroku attacks Naraku with his Wind Tunnel instead, and refuses to close it despite his friends pleas. The miasma begins poisoning him, causing blood to stream from his eyes and mouth, but he is able to suck in the Fuyoheki before InuYasha finally stops him. As he leaves, Naraku tells InuYasha that Miroku had almost gotten his heart, which he will regret. Miroku is left near death, and Kikyo states that her great abilities of purification cannot entirely heal him.

Kikyo is able to partially heal Miroku, but warns him he'll die if he overuses the Wind Tunnel. After taking back his human heart, Naraku learns of Kikyo's plan to purify him by having him absorb Kohaku's Shikon Jewel shard. Naraku entangles InuYasha, Kikyo, and Kagome in his webs, which makes the wound she sustained from healing Miroku grow. After they free themselves, Kagome travels to the sacred Mount Azusa to obtain a sacred longbow that has special spiritual powers and abilities of its own that can save Kikyo, but only if she truly wants to. The Spirit Guardian there tests her, during which Kagome falls off a cliff. Kikyo appears and angers Kagome by telling her what she thinks of her. Kagome says she's jealous, then learns it was just an image of Kikyo created from her own insecurities. Kagome passes the test and obtains the sacred longbow of Mount Azusa.

Kagome falls from the sky, but InuYasha catches her. Naraku recaptures Kikyo and the others, including Koga. He intends to acquire Koga's shards, but realizes that they are too pure as they are influenced by the incredible strength of Midorikio's will, so he captures Koga to defile them. InuYasha and Kagome arrive and while InuYasha battles him, Kagome aims the sacred longbow of Mount Azusa at Kikyo to save her but Kikyo makes her wait. Naraku drops her and his body opens, revealing the Shikon Jewel inside. Koga tries to get it, realizing that his shards are purifying Naraku, but the Shikon Jewel disappears and Koga is trapped. Miroku uses the Wind Tunnel to suck away the miasma to free him. InuYasha and Koga are able to break him free, but Koga ends up losing his Shikon Jewel shards in the process. With the real Shikon Jewel now inside Kikyo, she has Kagome shoot her. It purifies the jewel, and Kikyo's soul collectors fly at Naraku to try to purify him along with the Shikon Jewel. However, his demonic energy overwhelms Kikyo's tremendous spiritual abilities, the Jewel is tainted, and renders Kikyo powerless and on the verge of death. She tells a heartbroken InuYasha that she is now finally an ordinary woman, and he loving, romantically kisses her before she dies peacefully in his arms and her Soul-Collectors carry her spirit to rest in peace.

Without his shards, Koga takes Ginta and Hakaku and retires from fighting Naraku, leaving desire for revenge to InuYasha and his group. Meanwhile, Sesshomaru visits Inukimi to asks how he can make Meido Zangetsuha even stronger and even more powerful than ever before. She summons a Hellhound from her Meido Stone for her son to battle, which takes Rin and Kohaku into the void of the Underworld. Sesshomaru follows them into the void and defeats the Hellhound to rescue them. Though in the void, Kohaku can move due to the shard in his back, but Rin is not due to her life slipped away. When Kohaku informs Sesshomaru Rin has stopped breathing, he stops shocked. The Darkness envelopes Rin and Sesshomaru confronts the underworld guardian to rescue her, but Rin dies with no mercy. Sesshomaru uses Tenseiga to purify the carcass in the Underworld, and brings himself with Rin and Kohaku back to the physical world. Inukimi is surprised Sesshomaru isn't happy Zangetsuha's darkness widened, He more is disappointed of Rin's death, and is disturbed when now learning Tensaiga can only summon a dead person back once. After scolding Sesshomaru thinking he was a god, who could cheat death or something simply 'cause he carries Tensaiga, she revives Rin using her Meido Stone, but warns Kohaku and Rin they are alike, knowing their lives cannot be saved by Tenseiga again.

Naraku is irritated that there is still a speck of purity remaining in the Shikon Jewel, which could be exploited. InuYasha and his group arrive in a village of beautiful flowers and the demon Kaou traps InuYasha in an illusion created by his sorrow over Kikyo. Kagome saves him and defeats Kaou, purifying the village which removes the flowers. Meanwhile, Naraku orders Kanna to lure InuYasha and his companions into her mirror. When the group arrives, a demon emerges from the mirror that appears to steal all of Tessaiga's powers and abilities to use it against him, forcing InuYasha and his friends to flee.

InuYasha's party hides in a cave with a barrier, but the mirror demon finds them and breaks through it. As InuYasha fights it, his body goes into demon form but InuYasha somehow maintains control of his senses. As he wounds the demon, they are transferred to Kanna, who is controlling it. Watching from a safe place, Naraku orders her to keep the demon going until it kills them, or until their party kills her by killing the mirror demon. InuYasha switches his target to the replica Tessaiga and successfully breaks it, which restores the power to his own sword and his body to his normal half-demon state. Kanna gets closer to the group, but InuYasha refuses to kill her. Naraku makes Kanna and the mirror explode in a shower of glass shards in an attempt to wound the party. One shard of glass enters Kagome's eye. Through it, the dead Kanna gives her a clue as to how they can kill Naraku.

During a new moon, Sango and Miroku face off against a Bone-collecting demon. During the battle, Miroku is forced to use his wind tunnel twice, resulting in him becoming poisoned. To protect him, Sango coats Hiraikotsu in poison and uses it to destroy the demon, destroying her weapon in the process. Myouga suggests they visit the Demon Potions Master to have it repaired. The drunken man agrees to repair it and dumps it in a jug of alcohol, dissolving it. He sends Sango into another jug to pacify the demons inside. The demon's are the Hiraikotsu which want Sango to promise not to betray them again, but she refuses, saying that as she loves Miroku, she would sacrifice her life for him. Outside the jar, the Master of Potions offers Miroku a poisonous drink that will prevent him from feeling the pain of any other poison or demon miasma, though it will not actually prevent it from reaching his heart. Hiraikotsu initially intends to kill Sango, but Miroku drinks the poison so he can continue to protect Sango. The Hiraikotsu demons agree to fight with her once again, and Sango's weapon is fully restored, and is now much stronger and much more powerful than ever before.

The demon Shishinki approaches Sesshomaru for a fight, having been defeated by Sesshomaru's father long ago. To Sesshomaru's surprise, Shishinki attacks him using a complete Meido Zangetsuha and claims Sesshomaru's father stole the technique from him. Sesshomaru attacks with his Meido, but Shishinki's absorbs it. InuYasha and his group arrive and after Shishinki attacks him, InuYasha joins the argument. Shishinki taunts Sesshomaru, telling him that he must have been shunned by his father if his younger half-demon, half-human brother has Tessaiga as Tenseiga is just a cast off from it to contain the unneeded Meido. As Sesshomaru furiously wonders why his father did this, Shishinki attacks again. InuYasha protects him with the Wind Scar, but Sesshomaru punches him and tells him not to interfere. Sesshomaru blindly charges Shishinki. Miroku uses a paper charm to fire Myoga at InuYasha so he can explain to Sesshomaru that his father entrusted him with the Meido because he felt Sesshomaru could master it; however, Shishinki points out that he could have just given him Tessaiga instead of casting off Tenseiga. Sesshomaru resumes his attack. When InuYasha again comes to his aid, their swords begin pulsating. When Sesshomaru draws Tenseiga, he is able to launch a massive complete Meido that swallows Shishinki. InuYasha tries to tell Sesshomaru that Shishinki was lying, and that Tenseiga is a proper keepsake, but Sesshomaru states that they are destined to fight one another for the rest of their lives. Myoga states Sesshomaru must have realized his father's true intentions.

Toutousai confirms that Sesshomaru's father gave him Tenseiga so Sesshomaru could perfect the Meido Zangetsuha, then have Tessaiga reabsorb Tenseiga. Meanwhile, Naraku takes advantage of Sesshomaru's absence and tries to take Kohaku's shard, but is annoyed to find that it is still being protected and purified by Kikyo's spiritual powers. Kohaku fights Naraku alone, to protect Jaken, and protecting Rin as well. InuYasha's group arrives and Naraku tries to taunt Sango by claiming Kohaku runs from her to forget his past. She states that she already knew that, but will still fight for him when he needs her. She attacks with Hiraikotsu and to her surprise, it now has its own demonic energy and it is able to injure Naraku. InuYasha follows up with an Adamant Barrage attack, Kagome fires one of her sacred arrows, and Miroku attempts to use his Wind Tunnel, but the severely injured Naraku manages to flee. Afterward, Kohaku tells them that because his jewel shard is still pure, they may still be able to use in the final battle with Naraku.

Using the fragment of Kanna's mirror, Sesshomaru is able to make Tenseiga replicate Tessaiga's powers and abilities and challenges InuYasha to a battle to test his worthiness to wield their father's fang of destruction. InuYasha accepts. Every time the swords cross, Tessaiga regains some of its powers and abilities back. Sesshomaru creates a Meido that swallows InuYasha, and throws Tenseiga into it but Inuyasha cut through his demonic enegy to save himself . Naraku tries to control Tenseiga through Kanna's mirror. Sesshomaru jumps in the Meido and forces InuYasha to break Tenseiga. Tessaiga's blade becomes black, and InuYasha creates a Meido to come back from the netherworld. The broken Tenseiga comes back anew. Toutousai said that, now freed from his obsession with Tessaiga, Sesshomaru is one step away from obtaining a much stronger and much more powerful weapon of his own that was not inherited from his father.

Naraku attacks and fatally wounds Hitomiko, a priestess with unusually strong and powerful spiritual powers and abilities that he previously tried to kill fifteen years ago. Using the Shikon Jewel, he keeps her alive and uses his spider webs to control and manipulate her. He has her erect an incredibly strong and powerful barrier that traps Kagome, and begins torturing her to death. Kagome shoots the spider controlling Hitomiko, though she worries this will corrupt both Hitomiko's soul and spiritual powers. When she fires her sacred arrow, a huge light purple glowing ray of intense spiritual power shoots out and Hitomiko is able to die peacefully in Kagome's arms, after first telling Kagome that she can sense that Kagome's true spiritual powers are highly extensive, but are somehow sealed.

InuYasha's group returns to Kaede's village to tell her of Kikyo's death. As they talk, she states that Kagome's innate spiritual power was probably sealed by Magatsuhi, the evil will of the Shikon Jewel that did it out of fear of Kagome's enormously strong spiritual powers and abilities. Meanwhile, Naraku enables Magatsuhi to manifest as a demon. With his new body, Magatsuhi attacks Sesshomaru's group to try to take Kohaku's Sacred Jewel shard. Sesshomaru struggles to defend the boy without a weapon and having only one arm. InuYasha's group arrives to find Sesshomaru's right arm badly wounded and Kohaku's shard being defiled. As InuYasha confronts Magatsuhi, he renders Kagome unconscious. Sesshomaru uses his will to heal his wounds, annoyed with InuYasha who is telling him to back down, and assumes his true form to attack Magatsuhi. The brothers struggle to battle Magatsuhi, while protecting their respective groups. Eventually Magatsuhi spears Sesshomaru and traps him, saying he will be come part of Naraku's body. The others fear he is dead, and when InuYasha rushes to free him he is captured as well. Sesshomaru bursts through the ball of appendages, and as Toutousai arrives, Sesshomaru's left arm is restored and he is wielding a new sword. Toutousai calls it Bakusaiga and says it was always inside Sesshomaru, but could not be wielded until he surpassed his father in power and strength and learned to let go of his obsession with Tessaiga. With his newfound demon sword called Bakusaiga, Sesshomaru destroys Magatsuhi's body, forcing the latter to flee. At the end of the episode, Kagome finally awakens with a puzzled expression on her face.

Both groups go to Kaede's village where Kohaku remains unconscious due to the defilement of his shard, when he protected Rin from the previous episode. Kaede suggest Magatsuhi was able to defile it because the incredibly strong purifying spell Kikyo left behind is only effective against Naraku. Kagome tries to purify it but is unable to, seemingly due to Magatsuhi's mental attack against her. After Toutousai makes him a scabbard for his new sword, Sesshomaru heads off to hunt down Magatsuhi as only Tenseiga would be able to defeat him. He leaves Rin and Jaken behind with Kohaku. Kagome decides to return home to take her high school entrance exams, promising to return when they are done. While standing at the tree he was once pinned to, InuYasha worries that Kagome will die in the battle with Naraku, just like Kikyo, and thinks its safer for her to be home where she is not alone. Meanwhile, Kagome finds herself feeling lonely and missing her friends from the Feudal era, as her family is away on a trip, the school closed, and her friends unavailable. She falls asleep studying and awakes to find InuYasha there, much to her joy. As they talk, InuYasha asks her to consider staying there until Naraku is defeated, and suggests that her spiritual powers and abilities were sealed by Kikyo's final wish not to fight anymore. Kagome refuses, wanting to keep her promise to Kikyo and make the one correct wish that will make the sacred Shikon Jewel disappear from world of the living forever. InuYasha vows to protect Kagome with his life, and they almost kiss passionately, but are interrupted by the sudden return of her family. Ten days later, Kagome goes to take her exams, with InuYasha following after coming to pick her up since ten days is up. Kagome's bag gets caught in the train, but InuYasha carries her after it to retrieve it. She hugs him and he takes her to the exam site, where her mother meets her with the exam ticket she left at home.

Sesshomaru finds Magatsuhi and attacks him with Tenseiga, but it was only an illusion created by Byakuya. The real Magatsuhi attacks Kaede's village and gains control of Kohaku's body. Before escaping, he badly injures Miroku and Sango and electrocutes Rin with poison just trying to help. InuYasha and Kagome return and give chase, while Sesshomaru discovers the deception and begins fighting Byakuya himself. Byakuya brings one thousand demons to hold off Sesshomaru, who easily slays them with Bakusaiga in a single strike. Back at the village, Sango kisses the sleeping Miroku and prays for him to survive, before chasing after Kohaku. When InuYasha, Kagome, and Sango find him. Responding to his sister's appeal and aided by some of Kikyo's pure light left in his Shikon Jewel shard, Kohaku manages to break Magatsuhi's control momentarily. Kohaku jumps into a deep canyon in an effort to drive Magatsuhi out of his body.

Kohaku successfully drives Magatsuhi out of his body just as Sesshomaru arrives, who manages to use Tenseiga to cut Magatsuhi in half, destroying part of him. Naraku then tries to take Kohaku's shard himself, but Sesshomaru attacks with his Bakusaiga, which causes Naraku's body to explode. Meanwhile, a red demonic aura passes from Miroku's body into Rin's. Now possessed by Magatsuhi, Rin flies off with a demon. Later, Naraku manages to capture Kagome and demands InuYasha's group gives him Kohaku's shard in exchange for her. Kohaku spots a sacred arrow on the ground and hides it, before offering himself to Naraku. When Naraku grabs him, Kohaku stabs the arrow into the spot where Moryomaru's diamond armor is, shattering it. Naraku escapes in a miasma cloud. Sango and Kohaku hug one another in celebration, but then a piece of Naraku's flesh pierces Kohaku's back, taking the shard, leaving his empty body behind. Naraku completes the Shikon Jewel, but Kohaku is brought back to life by Kikyo's light after her spirit hears Sango crying for him. With the Shikon Jewel now complete the final battle between light and darkness, good and evil begins.

Kagome learns that she has been put on the waiting list for high school, and is happy about the fact that she was accepted at all. She and her friends graduate from middle school. Hojo wishes to give Kagome his second button, a tradition in Japan which means that the boy likes the girl, but she leaves before he can. Back in the Feudal Era, Naraku has absorbed the power of the Shikon Jewel and a dark cloud spreads over the land. InuYasha's group leaves to defeat Naraku, leaving Shippo behind. As they find Naraku and Byakuya in a cloud of miasma, they see Sesshomaru enter Naraku's body in search of Rin. As InuYasha's group enters, Miroku pauses to propose to Sango. They soon realize that though they are breathing in the miasma, it is not harming them because the Shikon Jewel wants to capture their souls first. InuYasha and Kagome search for the defiled jewel, after Miroku and Sango are captured. As InuYasha gets closer to the Shikon Jewel, he turns into a full-blooded demon and attacks Kagome. Naraku offers Kagome a miasma-coated arrow to save herself with, but she refuses. InuYasha attacks again, throwing her off a cliff. Naraku says InuYasha will kill her, just as he had killed Kikyo.

Sango realizes that Miroku's Wind Tunnel is getting larger and the two are taken in by an illusion of Miroku's father being sucked in by his Wind Tunnel. InuYasha momentarily regains his consciousness when he hears Kagome's voice, but his heart is devoured by the Shikon Jewel’s poison, and he turns into his demon form once more. As Miroku and Sango run away from demons, Miroku uses his Wind Tunnel once more to save Sango. He tells Sango that they should part then because of his Wind Tunnel about to devour them both, but Sango follows after him. Rin gains her consciousness again and soon runs into InuYasha, in his demon form. After InuYasha attempts to attack Magatsuhi, he is instead possessed by him when Sesshomaru and Kagome arrive. InuYasha, possessed by Magatsuhi, and Sesshomaru fight, while Kagome attempts to retrieve Tessaiga, which Magatsuhi has released because he realizes that the Tessaiga acts as the link which allowed InuYasha to keep a bit of control. As Kagome pulls the sword, she falls over the cliff, but is able to hold onto the side. Kagome calls to InuYasha and he gains some of his consciousness back and Tessaiga calls to InuYasha once more. He gains his control back and as Magatsuhi leaves InuYasha's body, he attempts to take over Kagome's. Then, InuYasha's demonic energy draws Magatsuhi out of both of their bodies, and Sesshomaru uses Tenseiga to destroy him once and for all.

After Magatsuhi's defeat, Kagome's innate spiritual powers and abilities are released to their fullest extent. The Shikon Jewel once again has a spark of pure light within it. Naraku tries to eradicate the pure light by sending out illusions, one to make Sango destroy Rin in the name of saving Miroku from the horrible death his father suffered, and one to trick Miroku to using his Wind Tunnel for one last time. Inuyasha makes it in time to prevent Miroku from opening the Wind Tunnel. Kagome's sacred arrow hits Naraku destroying the illusions, freeing Rin with the Hiraikotsu. Though Rin is freed and nearly falls to her death, Kohaku comes to save her before hitting the ground just in time. Inuyasha, Kagome, and Miroku sees Naraku's true body as his miasma starts to fill the air, Inuyasha sends a Meido, Byakuya uses a strange blade to rob some of the Meido's energy, and Kohaku protects Rin from the miasma after saving her seeing her unconscious.

Naraku releases more miasma, while Inuyasha uses Tessaiga's barrier to protect himself, Kagome, and Miroku. Sango arrives riding Kirara and throws her Hirakotsu, but it absorbs too much of the miasma and Sango falls through a hole Naraku opens in his flesh. Miroku follows and she decides to die with him there. When Kagome questions Naraku about whether his real wish has come true, he becomes enraged. As he absorbs the jewel, he begins transforming and spreading spiderwebs around the area. Inuyasha unleashes Meido Zangestuha, which takes on the form of slashing blades due to the different nature of his sword. Byakuya slashes Kagome across the back with his blade, but strangely it leaves no wound. Inuyasha quickly attacks and kills Byakuya, who states that he has fulfilled his purpose. Miroku and Sango fall again, but are joined by Shippo. Together, along with Sesshomaru's group, they join Inuyasha and Kagome in the final battle against Naraku.

Naraku gives his soul to the Shikon Jewel and transforms. As his miasma strengthens and increases, Kohaku, Rin, Jaken and Kirara are forced to leave, giving their masks to Sango and Miroku. As the others exit Naraku's body later, they find themselves over the Bone Eater's well near Kaede's village. After Naraku's body was destroyed by InuYasha's Meido Zangetsuha, Kagome pierces the Shikon Jewel with an unusually strong and powerful sacred arrow, dealing him a fatal blow. They learn that his true wish was Kikyo's heart, a wish the Shikon Jewel never granted. As Naraku's soul is purified and Miroku's Wind Tunnel vanishes. As the group celebrates their victory, a Meido opens behind Kagome and pulls her in along with the well. Kagome finds herself in front of her high school, and begins hanging out with her friends and dating Hojo with no memories of Inuyasha or the others. However, a nagging sense that something is wrong keeps bothering her, and when she touches the Goshinboku, her memories return and the spell is broken. She awakens surrounded by darkness. The Shikon Jewel tells her that she will stay there forever unless she makes a selfish wish to return to her own time. InuYasha uses Meido Zangestuha to jump into the darkness after Kagome. As he battles through the demons of the Shikon Jewel, he yells to Kagome not to make any wishes yet, for if she does, she will forever remain inside the Shikon Jewel, battling demons for an eternity.