Rider Time Decade vs Zi-O Final Chapter

The hide-seek game was declared to be over after the death of Swartz. The group gathered in the hall again with the poisoned dumpling and Heure almost eating it after Yusuke had warned him. Minutes after, the Masked Man appeared again from the tv and announced the last game to be a battle royal with the weapon to be a treasure from each competitor would find. As the group had started, Sougo had lost interest and went alone to the bridge. Tsukasa still followed the game and it reminded him of Kaito that he would love the current game as he found a knife.

Ora found a sword and attempted to kill Heure, but her luck was running out because Heure found a gun. Despite Heure in doubt to kill Ora, Ora was killed by Another Ryuki. In shocked and off from the guard, a mysterious figure cut his throat with an axe, killing Heure. Sougo still mourned on the bridge and immediately killed off from behind by a mysterious figure via throwing the same axed to be used to kill Heure. Next, Tsukasa found Yusuke and he had a treasure box. Yusuke claimed that he lost interested and gave the box to Tsukasa with Tsukasa accepted as he put his knife down.

However, Yusuke started to attack Tsukasa from behind with the sword that Ora's found. Tsukasa immediately noticed and blocked the swing with his knife, noticing that the Yusuke he met was a different one. The evil Yusuke smirked and stabbed Tsukasa on his belly while he was in the middle of interrogating him. With Tsukasa seemingly to receive a fatal blow, Evil Yusuke laughed to declare that he had won, but Sougo appeared and revealed himself to be a robot. Evil Yusuke was shocked that he failed to kill Sougo and also Heure as cutting his throat was just a shock. Misa also appeared as a spirit, showing that she was a dead person since the game had started. Heure revealed his true form to be a Space Ninja alien and bid farewell, forfeiting the game and Misa was able to go to the afterworld, hoping that she and Sougo could live as a human when she was reincarnated.

Evil Yusuke unable to accept that he didn't win and screamed, calling the Masked Man that he was the winner. The Masked Man appeared and pitied him, only telling Yusuke that the winner would be sucked into a dimension where Ohma Zi-O was currently resided in, waiting for the compatible to replace his spot. Ohma Zi-O manifested himself within the mirror of the living room and killed the evil Yusuke. The Masked Man was saddened and revealed himself to be Narutaki, telling the wounded Tsukasa that he was forced to become a host and hoping Tsukasa would help him to stop Ohma Zi-O. Tsukasa replied that finishing off Ohma Zi-O was what he intended to do and alongside the robot Sougo, both of them transformed and rushed to fight Ohma Zi-O in the different dimension.

In the fight with Ohma Zi-O, Diend, Kiva-la, and Kuuga of Decade's ally arrived to aid Tsukasa and Sougo. Unfortunately, all of their power were nothing in front of Ohma Zi-O and Sougo gave Saber Ridewatch to Tsukasa as it was the key to defeat Ohma Zi-O. Unfortunately again, Tsukasa was unable to use it and Sougo asked him to find someone who could use it. The story ended with Ohma Zi-O unleashed energy wave surrounding his body and blew up everyone.

(Note: Decade vs Zi-O is a prequel to Zi-O vs Decade, so after episode 3 of Decade vs Zi-O the story continues to Zi-O vs Decade Episode 1)