Demon Slayer the Final Season (O.G.'s Version)

This is the final season of the Demon Slayer anime.

Scenes

 * Giyu and Shinobu arrive to the house where Tamayo and Yushiro are living to talk about the cure that would turn demons back into humans. Yushiro appears before Giyu and Shinobu, asking them what their business is, while being suspicious of the two of them. Shinobu says that she and Giyu are here on behalf of Tanjiro while he's on a mission. Yushiro lets the two of them inside the house, even though he's still suspicious of the two of them. But even Giyu is suspicious of Yushiro for being a demon, yet he keeps his cool for Shinobu's sake. Yushiro introduces the two demon slayers to Tamayo, who informs her that the two demon slayers are here on behalf of Tanjiro. The two demons and demons and demon hunters have their discussion in a room of some kind. Shinobu begins ask the two demons about the cure that turns demons back into humans. Tamayo tells the two demon slayers all the details about the cure, along with some details about how humans turn into demons. Tamayo then shows the two demon slayers the actual cure. But before she gives the cure to the two demon slayers, she asks Shinobu about why she's wants to make friends demons. Shinobu answers Tamayo's question by saying that she wants to grant her sister's wish for humans and demons being friends. Yushiro says that such a wish is ridiculous. Giyu warns Yushiro to watch his mouth. Both Giyu and Yushiro stare at each other with anger. Both Shinobu and Tamayo tells Giyu and Yushiro to stand down. Both Giyu and Yushiro apologize the two girls. As Tamayo gives Shinobu the cure, she informs the two demon slayers that this will be the only cure for a good long time due to the details she told the two demon slayers about the cure. Both Tamayo and Yushiro tell Shinobu and Giyu that they have demon allies to help them out in their fight against Muzan, as a spider comes crawling towards them. Both Shinobu and Giyu recognize the spider as the same kind of spider that the spider demons used. Tamayo asks Shinobu and Giyu to deliver this spider to Tanjiro.
 * Shinobu and Giyu meet up with Tanjiro at some sort of secret location. They give Tanjiro cure but informed him that this is the only cure for a good long time. Giyu tells Tanjiro that the cure could possibly work on Muzan and turn him into a human. But Giyu ensures Tanjiro that it's up to his sister to decide to use the cure on herself or not. Shinobu pulls out the spider given by Tamayo and gives it to Tanjiro as she tells the details about the spider. As the spider crawls up to Tanjiro's shoulder, Tanjiro starts hearing voices coming from the spider. Tanjiro recognizes the voice to be from Demon Spider Mother. Demon Spider Mother explained to Tanjiro that after he killed her, she placed her soul into one of her spiders and stayed in the shadows because it took a long time turn back into her spider demon form. She even tells Tanjiro that she was informing Tamayo and Yushiro about Muzan's actions and his family.
 * During the final battle against Muzan and his demon allies, the Hashira members are being killed one by one. Even the entire Ubuyashiki Family is killed. This forces Sanemi Shinazugawa to turn into a demon. However, he is then killed by Giyu Tomioka. Giyu calls Sanemi a fool for become a demon. He then notices that Shinobu Kocho is becoming a demon due to being infected by a demon that she fought and killed. Giyu is at first hesitant to killed Shinobu due to his love for her. But he was able to deal a fatel blow at Shinobu. He confesses to Shinobu that he was soft, revealing that he is dealt with a fatal blow from Shinobu. The two of them simultaneously die.
 * During the battle between Tanjiro and Muzan, Nezuko uses the cure on Muzan, which slowly and painfully turns Muzan into a human. Tanjiro asks Nezuko why she uses the cure on Muzan. Muzan explains to Tanjiro that she's starting to get the hang of her demon powers and reminds Tanjiro about Muzan family. Suddenly Tengen Uzui appears, saying that he hears everything about Muzan's family. Tengen says that he understands about having a familiy, since Tengen has one wife left (Hinatsuru). And sense Muzan is now human, Tengen can't kill Muzan since he's no longer a demon. But he then says that Muzan does deserved to be punish.
 * Muzan returns to his wife Rei and his unnamed daughter. Rei tells Muzan that a woman named Hinatsuru came by the other day and gave Rei herself a fin of some kind. Muzan reassures Rei that things will be okay and admits having made many mistakes in the past.
 * Tengen has become the leader of the new Demon X Human alliance. The other members of this alliance are Tanjiro, Spider Demon Mother, Nazuko, Zenitsu, Tamayo, Yushiro, Shinjuro Rengoku, Kanao Tsuyuri, and Inosuke Hashibira. Its later revealed that Tanjiro and Spider Demon Mother are in a romantic relationship.