When Professor Chronos is taking Yuya's group, Vivian decides to ask a question. "Brother. The reason that Akaba Leo tries to eliminate you is the fact that you have Supreme King inside you, right? How did it get inside you in the first place?"

Yuya and Hana look at each other and frown a little, Zarc, who is using Yuya's mouth to speak, says, "You're right. I didn't get Supreme King inside me before I decided to follow in Dad's footsteps to become a pro..."

Hana says, "Yuya, no, I know it is Zarc saying. Are you sure you're comfortable speaking it?"

"I have to tell Dad about this." Zarc says. "Like how Victoria is connected to Yami, Wilson is connected to Itchize, and Rebecca is connected to Mistress Thousand...there is another one of our friends who is connected to Supreme King...He is the reason why I was possessed...that's why we never tried to seek for them like the other three back before the battle in Heartland..."

Yuto, Rio, Shark, Chris, and Thomas are now at the Obelisk Male Dorm, and Shark says, "So this is where those Obelisk Force and the other people in Blue uniform living..."

"So we're going to charge inside and give them our fanservice...Interesting." Thomas says.

"We can't be too rash. Our enemy might be waiting for us inside." Yuto says.

"I agree with Yuto. We have to be careful." Chris says.

"You're not moving forward." Just then, they see a man standing in front of them in front of the Obelisk Male Dorm. He's not wearing an Academia uniform, and he has blue hair and glasses. He stares at them and says, "Xyz Dimension Duelists, I assume?"

"Who are you?" Yuto asks.

"And you aren't Sakaki Zarc either..." The boy says. "Where is he?"

"Why do you want Zarc? And who even are you?" Rio asks.

"I made a mistake of showing Zarc those cards...that's why I have to eliminate him before things get worse!" The boy says. "My name is Frost, I'm the one guarding this dorm. I am not going to let anyone else stop the Arc Area Project."

"The Arc Area Project has destroyed our homeland!" Thomas yells at him. "Our friends have been carded because of it!"

"None of you were supposed to exist." Frost retorts. "You guys are not real...you were supposed to be people from history..."

Yuto and Rio then remember the stories that Yuya and Yuni told them. Rio asks, "Don't tell me...are you actually from the Original Dimension, like Mark, Victoria, and Zarc?"

"Stop messing with me! Mark and Victoria? Are you kidding me? Mark is dead! And Victoria has gone missing!" Frost yells.

"They are not missing! Mark and Victoria are also with us!" Yuto says.

"It's no use, Yuto. If what you said is true, that he is from the Original Dimension...then he might be in denial of the Four Dimensions..." Chris says.

"Then we really need to knock him into senses." Rio says. "I'll duel you."

"Kamishiro Rio...formerly known as one of the Barian Emperors Merag..." Frost says. "You also use an Ice Deck, it will be a great opportunity to duel you..."

Then after both of them activate their Duel Disks, the Field Magic Crossover activates as platforms appear. "Duel!" (Rio:4000)(Frost:4000)

"I'll get the first turn. With Scale 1 Blizzard Vulture and Scale 10 Blizzard Maiden, I set the Pendulum Scale!" After the scales are set, she says, "With this, I can summon monsters from LV:2 to 9! Form from the coldness, sway through a white and harsh madness! Pendulum Summon! Come forth! Blizzard Infinity Dragon. (ATK:3300/DEF:2800 LV:9 PS:3)"

After the Dragon appears, Frost says, "Pendulum Summon? No way..."

"I set one card and end my turn." Rio says.

Frost says, "I see...with the new world... even the decks are different...My turn!"

After drawing a card, he says, "I use Magic Card! Triangular Formation of the Ice Barrier! I reveal 3 Ice Barrier Monsters in my hand, which are Acolyte of the Ice Barrier, Watershadow of the Ice Barrier, and Mirror Judge of the Ice Barrier! I can destroy one card on the field and summon one monster from my hand. I destroy Blizzard Infinity Dragon and Summon Watershadow of the Ice Barrier!" (ATK:1200/DEF:800 LV:2)

Rio braces for the impact as the formation destroys her dragon. Frost continues, "And I summon Mirror Judge of the Ice Barrier from my hand!" (ATK:1800/DEF:900 LV:4)

After the Monster appears, Frost says, "Battle! I attack you directly with Watershadow of the Ice Barrier! Shadow Swim!"

Rio says, "I use Trap Card: Ice Maze! When I get a direct attack, I halve the damage and my opponent takes the same damage as I do!"

"What?" Frost says with surprise. (Rio:4000-3400)(Frost:4000-3400)

"But still, I have Mirror Judge, it can attack as well!" Rio rushes to grab an Action Card and yells, "Action Magic: Evasion! I negate the attack!"

After getting back to the ground. Frost says, "You even know how to do Action Duels...I set two cards and end my turn."

Rio says, "Pendulum Summon is a creation of Yuya and Yuni, no, Zarc and Zarine. I will use them to my victory! My turn!"

After drawing a card, she says, "With the set scale, I Pendulum Summon! Revive from my Extra Deck! Blizzard Infinity Dragon!"

After the dragon appears, she says, "Battle! I attack Watershadow of the Ice Barrier with Blizzard Infinity Dragon! Blizzard Infinity Break!"

"I use Trap Card: Urgent Tuning!" Frost says. "I can summon a Synchro Monster using monsters on the field as materials!"

"A Synchro Summon on my turn?" Rio asks in surprise.

"I Tune the Level 4 Mirror Judge with Level 2 Watershadow! Synchro Summon! Come forth! Level 6! Dewloren, Tiger Prince of Ice Barrier! (ATK:2000/DEF:1400 LV:6)

After the monster appears, Yuto says, "A Synchro Summon instead of a Fusion Summon..."

"So he really is from the original Dimension..." Chris says.

"Then I change the attack target to Dewloren Tiger Prince of Ice Barrier!" Rio yells.

"I use another Trap Card: Ice Barrier! I change your Monster's ATK to 0 and negate its effects!" Frost says, much to Rio's surprise. Rio is hit by the attack and she falls to the ground, but she manages to pick an Action Card before falling. (Rio:4000-2000)

"Action Magic: Damage Draw...I can draw one card after taking damage." Rio says as she draws a card and says, "I normal Summon Ice Soldier from my hand." (ATK:500/DEF:1000 LV:4)

After the Monster is drawn, Rio says, "When Ice Soldier is summoned, I can summon another Ice Soldier from my deck."

"So that is two Level 4 Monsters..." Frost says.

"I Overlay my Level 4 Ice Soldiers! Appear! Numbers 103! Ragna Zero, the Funerary Sub-Zero Maiden!" (ATK:2400/DEF:1200 RNK:4 OVU:2)

After the Monster appears, Rio says, "I set one card and end my turn."

"Numbers 103...so it is here..." Frost says as he draws a card. "By banishing Ice Barrier in my graveyard, I send Royal Knight of the Ice Barrier to the graveyard and return Watershadow back to my hand."

After getting the card back, he says, "Then I use Magic Card: Summon from the Ice Barrier, I can Special Summon an Ice Barrier monster from my deck to my hand! I Summon Defying Troops of the Ice Barrier! (ATK:1500/DEF:800 LV:3)"

After the Monster appears, Frost continues, "Then I Normal Summon Watershadow from my hand! I Tune the Level 6 Dewloren, Level 3 Defying Troops with Level 2 Watershadow! Powerful dragon of the Ice Barrier, show yourself and defeat your enemies! Synchro Summon! Come! Level 11! Trishula, Returned Subzero Dragon of the Ice Barrier! (ATK:2700/DEF:2000 LV:11)

After the dragon appears on the field, Thomas says, "He has a Level 11 Monster?"

"When this Monster is Synchro Summoned, I can banish three cards that my opponent controls. I choose Ragna Zero and both of your Pendulum Scales!"

Once the only card on Rio's field is the Trap Card, Frost says, "Battle! I attack you directly with Ttrisula! Ice Barrier's Break!"

Rio says, "I use Trap Card: Mirror Force! I destroy all ATK position Monsters that my opponent Controls!"

"Good, with that card, Trishula will be destroyed." Shark says.

"When Tristula, Returned Subzero Dragon of the Ice Barrier is destroyed, I can Special Summon Trishula, Dragon of the Ice Barrier from my Extra Deck!" Frost says, much to their horror. "Furthermore, its ATK becomes 3300." (ATK:2700-3300/DEF:2000 LV:9)

"You're kidding me..." Rio says, looking at her empty field.

"Battle! I attack you directly with Trishula, Dragon of the Ice Barrier! Ice Barrier's Break!" Frost says.

Rio notices another Action Card, however, Frost is going to get an Action Card as well. "Action Magic: Evasion! I negate the attack." Rio says.

"Action Magic: No Action. I negate the effect of your Action Card." Frost says.

Rio is surprised to see her opponent using Action Cards, but she says, "You just made your doom by doing so. I banish Ice Maze from my graveyard, I negate the battle damage and the amount that is negated are returned to you as effect damage!"

"What?" Frost gasps in shock as the Ice Maze hits him. (Frost:4000-700)

"Good, that's a lot of damage!" Chris says.

"Rio is doing well." Yuto says. "I was scared for a second."

Frost gets back up and says, "Damn it...why don't you understand the big crisis up ahead...all I ever want is to quickly end the duel so that nobody is going to get hurt..."

"You've already attacked Heartland and hurt us! And now you dare to say such things?" Shark asks with anger.

"You don't understand! The Supreme King needs to be destroyed!" Frost says. "He will destroy the world again!"

"Supreme King? Are you talking about the Supreme King that is inside Yuya, Yuni, and Yuzu?" Rio asks.

This causes him to freeze, "You're telling me that even Hiiragi Yuzu and Sakaki Yuni have Supreme King inside them?"

"After the World splits into four dimensions, the Supreme King also splits into three..." Rio says. "That's what we've heard from Eliphas..."

"Oh no...we have to warn the Professor about this!" Frost says in a panic.

"You're not going anywhere until the duel is over!" Rio says.

"There is no time for that!" Frost says as he cuts off the Duel Disk. Causing the duel to have no result. Monsters disappear and he is trying to rush past them. But Yuto is the one grabbing his arm.

"Do you think you can just make a mess, and then leave as if nothing happened? We demanded some answers!"

"I have nothing to tell you-" Just then, Frost disappears and only his card remains on the floor. Yuto turns to see that Rio is the one carding Frost.

"Did you just card him, Rio?" Shark asks.

"He knows about Zarc, Zarine, Ray, and the original dimensions. And he refuses to believe that these years of the Four Dimensions are real. I am not sure if the Professor brainwashes him because they came from the same place, but we can't just let him go like that." Rio says.

She sighs and says, "But I have to admit...he's really strong."

Yuto says, "I guess you're right, we'll hold onto his card before we find Yuya and the others to see what to do with it."

"So you mean this Frost person is the one who made you being possessed by the Supreme King?" Vivian asks.

"When everyone left me after I accidentally hurt that duelist, Frost is the one who approached me. He tried to cheer me up by saying something like the crowd liked it and I could try it again and dueled less violently like last time. And then he showed me two cards that are cursed. Astrograph Magician, and Chronograph Magician." Yuya says.

"So that's when you got possessed by the Supreme King...But do you think Frost is still alive somewhere?" Yusho asks.

"I don't know." Hana says, "The last time I saw him is after Zarc's rampage, he told us how he was the one who gave a hand to Zarc to destroy the world. He was the one who made Zarc like that. And that's why, Zarine, Ray, Reisho, Mark, and I feel betrayed and our friendship was broken."

"If he's still alive somewhere..." Yuya says, "Maybe we can learn more about how he managed to get his hands on those two cards."

"But first, stopping Academia is the priority." Reiji adds.

Sorry for the unfinished duel, but as you can see, I decide to add an OC from the Original Dimension that is on Academia's side, since he might be the reason why Zarc is possessed by the Supreme King. I hope you like this chapter.

New OC Cards:

Ice Maze:

Normal Trap

Effect: When your opponent targets a direct attack, you can halve the damage and your opponent takes the other half. By banishing this card from the graveyard, you can negate the battle damage and your opponent takes the damage equal to that battle damage.

Summon of the Ice Barrier:

Normal Magic

Effect: You can Special Summon one Level 4 or lower Ice Barrier Monster from your deck to your field.