The episode where Sougo accept his dark side, Mirror Sougo.

Mirror Sougo keep taunting Sougo to use the ZI-O RideWatch II, but of course he even said this to Sougo.

Mirror Sougo: ACCEPT IT!!! In the future you will still be a demonic king!

Meanwhile Geiz is fighting Another Ryuga, he even create a suicidal plan, Geiz said his power is really similar. The first time Geiz use Time Burst against Another Build, it could predict how the enemy would die and so he did use Time Burst against Another Ryuga...............only to backfired with the counterattack of Another Ryuga, and killed Geiz.

But dont worry cause Sougo has the power of ZI-O Ridewatch II completed after he is having a conversation between Mirror Sougo. At the conversation between the two Sougo, Mirror Sougo's heart is moved by the word of his real world counterpart and gave him the last piece of ZI-O Ridewatch II and unite himself with Sougo as in combined himself with Sougo. After Geiz's dead, Sougo began to use the power of rewind, a power that belongs to Oma ZI-O.

Sougo declare, "Good and Evil I WILL ACCEPT IT ALL, AND I WILL CUT THROUGH THE FUTURE!!!!!!!!" AND SO OUR KING HAS BEGAN HIS JOURNEY TO THE RIGHT PATH TO BECAME A KING!!!!! He transform into ZI-O II! And we get to SEE WOZ DOING THE "IWAE" AGAIN!

Sougo: hehe its been long time since you have done the "Iwae" 😁

Woz: Waga maou, now you may fight WILL ALL OF YOUR HEARTS CONTENT!!!!

And so the fight between the King of Time against the Dark Dragon begin and the king himself create a mighty FINISHER!!!!! CALLED ZI-O SAIKYOU! KING! GIRI GIRI SLASH!

And I CANT WAIT FOR KIKAI!!!! My favorite future rider number 2 (Quiz is number 1)