I might be a fake Ultraman.

To save Tokiwa Sougo, whose soul has left his body...

Well, Gates and Tsukuyomi still don't understand that Tokiwa Sougo's soul left his body; they both think that Tokiwa Sougo is really dead.

Gates showed his true feelings in front of Tokiwa Sougo's "corpse," making no attempt to hide his anger and worry.

This was clearly seen by Tokiwa Sougo in his spirit form, and he was deeply moved.

Sure enough, Gates had already come to regard him as a partner!
Afterwards, Gates and Tsukuyomi returned to 2015, three years earlier, to the time of the Another Spirit Rider event.

They must defeat the Otherworldly Spirit Riders and rewrite history, so that Tokiwa Sougo might have a chance to come back to life.

Unfortunately, Gates did not succeed.

Because Kamen Rider Decade appeared.

Decade not only defeated Gates, but also erased the Spirit Rider's watch face from Gates's hand, so that Gates would no longer be able to defeat Another Spirit Rider in the past.

Surprisingly, Decade pulled out one of his own watch heads and threw it to Gates, saying it was in exchange.

Unlike other watch heads, the Decade watch head also has an extra interface, which seems to be able to be used to plug in other watch heads.

This probably reflects Decade's special ability—to use the power of other Riders.

Guided by Tokiwa Sougo's spirit, Tenkuji Takeru boarded the Time Machine and traveled to the past.

Their goal was to save the dying police officer!

As long as the police officer is not on the verge of death, even if he transforms into an Another Spirit Rider, defeating him can save the police officer and avert a tragedy.

In Tenkuuji-no-sensei's hand, he held the Spirit Rider's watch.

It is clear that Tokiwa Sougo traveled back in time and handed the watch to Tenkuji Takeru.

The knightly power contained within this watch will be the key to turning things around.

……

Zi-O World, B.

Alien spirit riders also appeared, and the situation was basically the same as in the other world.

After confirming the time and the people involved, Baili Yuan and Gates rushed back to the past, intending to intercept the Otherworldly Spirit Riders at their spawn point.

Tsukuyomi: "Go Gates!"

Hua Hua: "Go, Demon King-sama! ヾ(°°)!"

Baili Yuan and Gates set off.

This time, Gates was confident because he already had the Spirit Rider's watch, and he was sure he could defeat the alien Spirit Rider before Baili Yuan could.

Moreover, after Gates landed, he indeed did not see Baili Yuan.

This made him grin from ear to ear.

Thus, the battle between Gates and the Otherworldly Spirit Riders broke out... until Tsukuyomi called.

It turns out that after bidding farewell to Baili Yuan and Gates, Tsukuyomi and Hana also encountered Tenkuji-zun and the Time Jacker Ur.

When they learned that the Another Spirit Riders' users were in a life-or-death situation, Tsukuyomi immediately became uneasy.

Tsukuyomi hurriedly took out her communicator and transmitted the information to Gates across time and space.

"Why should I save him? Save the Another Rider's transformation user?" Gates said, dissatisfied.

Then, from the other end of the communicator, Hua Hua's voice came through: "Gates won't do, only the Demon King can save everyone else~"

Gates looked at the Spirit Rider he was about to defeat, gritted his teeth, and after realizing that Baili Yuan had not yet appeared, he chose to let the alien Spirit Rider go for the time being.

"I will never be outdone by Zi-O!"

Therefore, Gates chose to continue jumping through time, going to the past to save the Another Spirit Riders' alter egos.

"If Zi-O can do it, so can I!"

……

Why didn't Baili Yuan appear?
Because he realized he seemed to have gone to the wrong place.

"Where did I get this from? Is this still the Zi-O world?"

We were just in a time tunnel.

Baili Yuan, who was on his way, was suddenly attacked by Aura and Ur piloting the Demon God Machine, and then a bolt of lightning struck down in the space-time tunnel.

Baili Yuan fell out of the time-space tunnel. But... he seemed to have arrived in a strange world.

He still looks like Tokiwa Sougo, and the power of Zi-O still exists.

But... this doesn't seem to be his world.

As soon as Baili Yuan arrived, he saw Decade fighting Geiz.

Then Gates was defeated, the Spirit Knight's watch face was erased, and the Decade Knight threw away his watch head... Baili Yuan saw all of this clearly.

When Baili Yuan saw Decade smash his watch head onto Geiz's head, he couldn't help but twitch the corner of his mouth.

It hurts to look at it.

What sounds good is a good start.

Then, when Decade left, he kicked Geiz several times and flipped him over, as if worried that the ground was too hot and would burn Geiz.

Then Baili Yuan saw Gates pick up Decade's watch.

Bai Liyuan said that if it were him, he would not pick up this kind of power that was given to him as charity, and then... leave this power to the passing Zi-O.

It has to be him!
Although Baili Yuan didn't know what Decade was all about or why he was there, he recognized Decade's belt and knew Decade's general abilities.

Kamen Rider Decade possesses the ability to acquire the powers of other Kamen Riders and then activate corresponding transformation abilities, allowing him to almost perfectly replicate the powers of other Riders.

While it can't be said that its abilities are exactly the same as Zi-O's, they are quite similar, though both have their own strengths.

Without a doubt, they are the same type of stand-in.

However, unlike Tokiwa Sougo, Kadoya Tsukasa, the user of Decade, possesses the ability to freely travel through time and space, even to parallel worlds.

Therefore, Tsukasa Kadoya could appear in any Kamen Rider world.

In the end, Baili Yuan did not go out, because he wanted to observe the situation secretly.

The appearance of Decade, whatever its reason, signifies something unusual.

As a knight with the same type of Stand... no, I mean power, Baili Yuan strongly suspects that Decade might be aiming for Zi-O.

Therefore, Baili Yuan activated his secret technique—Ultraman Probe: Rider Observation!
Then, Baili Yuan secretly followed Geiz and saw another Tokiwa Sougo appear.

Baili Yuan remained silent for a moment, then drew a conclusion.

"It's a parallel universe!"

What on earth is that old devil doing?!

Then Gates and Tokiwa Sougo joined forces to fight against Another Spirit Rider.

Gates even gave the Decade watch head to Tokiwa Sougo.

"The two people in this world have a pretty good relationship~" Baili Yuan remarked.

The power of Another Riders is not only the Rider's part, but also the part of the monsters that the Riders fight against.

So, in fact, Another Rider can also summon monsters and minions.

Depending on their individual abilities, the minions and monsters summoned by Another Riders vary in strength.

However, it is clear that even summoning minions is not something that all Another Riders can do easily.

Just as Gates and Tokiwa Sougo joined forces to defeat Another Spirit Rider.

The attack broke out at another location.

Kadoya Shido dodged the attack and appeared before everyone along with Woz.

"Woz?" Tokiwa Sougo looked surprised.

Geiz, however, set his sights on Tsukasa Kadoya, "He is... Kamen Rider Decade!"

However, Tsukasa Kadoya and Woz paid little attention to the two, instead turning their heads to look at one side, staring intently at the enemy attacking them.

A figure slowly emerged from the smoke and dust of the explosion, his steps light yet as graceful as the approaching waves.

Its appearance is none other than—Kamen Rider Dark Decade!

Tsukasa Kadoya looked at the approaching Dark Decade with a deep gaze.

Because, among the many parallel worlds, there is only one Decade, Kadoya Tsukasa.

Dark Decade is actually a transformation of Tsukasa Kadoya, but it is the transformation of the past Tsukasa Kadoya. His true identity is the leader of Dai-Shocker!
But wasn't Dark Decade already defeated by him, thus completing the convergence of his own timeline?
How did I end up here again? (End of Chapter)