Rurouni Kenshin: Final Chapter Part I - The Final (2021)
The execution, however, is merely staged, and Kenshin is freed and assisted in defeating the men by Hajime Saito. Sano joins them, and the three are rowed to Shishio's battleship. While searching for Shishio, Kenshin meets Seta Soujiro again and the two rematch. Kenshin comes out victorious, and Soujiro, who originally believed Kenshin to be weak, is crushed and confused. Kenshin finally finds Shishio, Yumi and Hori waiting in the ship's hold. a duel ensues between Kenshin and Shishio, who easily overpowers Kenshin. Saito arrives immediately after, followed by Sano and Aoshi, who followed them from Kyoto, but even the four together are no match for Shishio. Shishio hits his limit and Yumi attempts to shield him from Kenshin while Shishio stabs both of them, killing her. Meanwhile, Ito's men begin firing at the ship, intending to sink it and drown Shishio and Kenshin inside. Shishio condemns Kenshin for helping such a government. Kenshin agrees that the new Meiji government is faulty, but argues that the age of assassins like himself and Shishio is over and that there should be no more violence. He manages to defeat Shishio using Amakakeru, though not physically harming him. Shishio, who has long hit his limit and whose body has become overheated, catches fire and burns to death before the group's eyes.
Saito, Aoshi, Sano and Kenshin escape from the ship before it sinks and are brought back to shore, where Kaoru, Yahiko, Misao and the Home Ministry are waiting. Ito acknowledges Kenshin as Kenshin for the first time and declares Battousai dead, and his men salute the group as heroes. Aoshi and Misao return to Kyoto, and Kaoru, Kenshin, Yahiko and Sano return to the dojo. Kaoru notes the change of season, as well as the end of Kenshin's life as Battousai. Kenshin expresses his desire to continue living at the dojo and to move forward into the new era, and invites Kaoru to move forward with him.
Rurôni Kenshin: Sai shûshô - The Final