A/N: WARNING! If you don't like copious amounts of exposition and OC's you probably won't like this chapter.

(Standard Dimension)

Yuri had left along with Yuzu and the kids leaving Yali and Sora behind. Standing in a secluded hall in the LDS building not too far from the central duel court Sora began a tongue and cheek remark towards an infuriated Yali.

"So how do you think that went Yali? Pretty good if I do say so myself." Sora leapt as Yali grabbed his jacket and forced him against the wall. "Good! GOOD!" Yali's eyes pierced Sora's soul, he was beginning to regret angering him, he was known for a short fuse at academia. "If you call messing with my work good I'll have you hung, drawn and quartered!" Yali then proceeded to knee Sora in a certain reproductive area that put the young boy in crippling pain as Yali released his grip causing him to fall with a thud to the ground. "I can't decide whether I should continue to let you live or if I should card you right here and now!" Yali lifted his disk pointing it directly at Sora's face his hand hovering threateningly over the card function. "You know what Sora?" Yali dropped his disk causing Sora to question Yali's sudden change in plans "W-w-what is it Yali?"

Yali tapped his forehead "It's just funny how a supposed elite like you is trembling in your boots at the sight of someone else doing something that you get sadistic pleasure in." Yali held up the notebook he was known for carrying quickly flicking thought the pages as he spoke "People like you fascinate me! How hypocritical you are! Students wonder what this notebook holds, I've never once told anyone what it contains besides dueling strategies." Yali closed the notebook in front of Sora's face "It'll continue to be a mystery until I decide otherwise." Yali smirked noticing the fear he had so effortlessly inserted into Sora, no wonder he was regarded by many to be the main instigator of terror even more so than Yuya. Yali walked away leaving Sora with some parting instructions "You'll continue to follow Yuri until the invasion then you can proceed on your own devices. I have business to attend to." Yali tore a page muttering to himself "I won't let them interfere, I can't allow them in my way…" Leaving the building he crumpled the page tossing it in a bin smirking "One's gone now to get rid of him." He tucked his notebook into his trouser pocket as he left for the harbour to collect himself and his thoughts.

Yali sat on the harbour watching the waves crash against the sea wall, just thinking nothing less nothing more. "Hey you!" a gruff voice called from a nearby alley behind him, he turned his head rather disinterested in this situation until he noticed the red scarf tied to this person's right arm, making the decision that this would be worth his time he issued a reply to the individual while standing up "Yes? Why would you want me?" Pointing to himself pretending not to know what was going on. The person surprisingly wasn't fooled zeroing in on Yali's duel disk "You're not from around here are you?" Yali scratched his neck intentionally making his disk even more obvious "I don't believe you are too. Eh? Yuto." Even though Yuto's face was covered by a mask Yali could tell he hit him for six, Yuto clenched his fist tightly shaking with rage "You and your silver tongue fooled us all back in XYZ but I won't allow you to take another step forward and ruin another peaceful dimension! Now tell me where Ruri is!" Yuto had to restrain himself from throwing himself on top of a laughing Yali "Oh Yuto, Yuto, Yuto. I had nothing to do with the abduction of your girlfriend and where she is exactly I don't know but I won't deny my work in scouting your dimension alongside another associate of mine." Yuto didn't want to listen anymore and activated his disk "Oh you're jumping the gun a bit don't you think?" Yali shrugged inserting a deck into his disk before readying his "But I won't complain about extending my win streak over you!"

"Duel!" Both of them shouted.

Yali: 4000 LP Yuto: 4000 LP Cards x5

Yuto began the duel, "I set all 2 cards face down and end my turn." Yali laughed at the predictability of his opponents move "You always were too passive explains why your dimension was so easy to invade."

"My turn, I draw I'll start by playing the spell Sacred Sword of Seven Stars by banishing one level 7 monster from my hand I can draw two cards, I think I'll banish Blaster, Dragon Ruler of Infernos!"

Yuto eyes widened, "You even have the nerve to use that deck. Do you have any shred of respect or decency for all the people you betrayed?!"

Yali narrowed his eyes "Why do you ask? Does it bring back bad memories?" Yuto gritted his teeth, "You have some nerve…" Yuto remember that fateful day he had first met Yali.

(XYZ Dimension) (Before invasion)

"Go Dark Rebellion Xyz Dragon! Take out Shun's Rise Falcon! Mauling mandible charge!" Dark Rebellion's metallic tusks tore the bird in half wiping out Shun's remaining life points.

Shun (400 - 0)

Yuto: WIN!

"That was great Yuto!" Ruri cheered as she threw herself onto a blushing Yuto, "That's your fourth consecutive victory over Shun you're a real prodigy in the making aren't you? My noble knight?"

"Trust me I'm nothing special Ruri your brother had me backed into a corner I only just manage to make a comeback." Yuto kept his modesty as Shun walked over "You are too modest Yuto. Take a bit more pride in your skills!"

"Hey are you going to take this duel seriously or not!" the shouting from a purple haired boy towards a grey haired one caused the three to turn their attention to another duel that was going on nearby. "Hey Yuto?" Shun asked "Yeah?" Yuto replied "Do you know that guy I've not seen him around here before." Yuto went through his thoughts but wasn't able to link the individual to anyone, "Nope I've never seen him either." The purple haired boy continued to rage "You've been writing in that notebook since we started!" Yuto noticed the current field, the purple haired one had no cards in hand, Black Ray Lancer on his field with no overlay units and 4000 life points while the grey haired one had 5 cards in hand, no cards on the field and a measly 100 life points left.

He sighed shutting the book "Fine, I'll warn you it's your own funeral. My turn I discard Reactan, Dragon Ruler of Pebbles and Burner, Dragon Ruler of Sparks to summon a Redox, Dragon Ruler of Boulders from y deck in defence mode!" A huge earth dragon appeared in flash Redox Dragon Ruler of Boulders Level 7 (1600/3000)

"Next I banish the two baby Dragon Rulers in my graveyard to summon Blaster Dragon Ruler of infernos from my hand in attack mode!" Blaster Dragon Ruler of infernos Level 7 (2800/1800).

"He has two level seven monsters on is field…" Shun mumbled.

"I overlay my two Level 7 Dragon rulers to build the overlay network! I XYZ summon! Come Forth! Rank 7! Mecha Phantom Beast Dracossack!" A threatening half jet half beast hybrid appeared pointing its turrets threateningly. Mecha Phantom Beast Dracossack Rank 7 (2600/2200), "Dracossack's effect I detach one overlay unit and summon two tokens to the field and while they are on the field you can't target him with effects and he cannot be destroyed by battle or card effects."

"What is he planning with those tokens…?" Yuto pondered as the Dragon ruler player continued his turn.

"Dracossack's second effect I destroy one token on my field to destroy your Black Ray Lancer." The turrets fired destroying both the two targets "The down side is my Dracossack can't attack." His opponent interrupted "So that's your big move I'll beat you next turn."

"You won't get another turn! Your end starts here! I activate the spell Sacred Sword of Seven Stars, I banish Tidal, Dragon Ruler of Waterfalls from my hand to draw two cards and it just so happens when Tidal is banished I can add a Streams, Dragon Rulers of Droplets to my hand, I now discard it alongside a Tempest in my hand to summon a Tidal directly from my deck. I now banish Blaster and Streams from my graveyard to summon back Tempest from the graveyard." Tidal, Dragon Ruler of Waterfalls Level 7 (2600/2000), Tempest, Dragon Ruler of Storms Level 7 (2400/2200)

"Huh! That's 5000 points of damage right there!" the Purple haired boy fell over on the sight of the two dragons staring him down, "You shouldn't have bothered me. Tempest! Tidal! Direct attack!"

Unknown (4000 – 0)

The win icon flashed on the Dragon ruler wielders disk as he walked towards his opponent "I believe you owe me a deck Ryoga" Ryoga reluctantly pulled out his deck before it was quickly snatched out of his hands and slid into the opposing duelist's pocket .

"Hey you!" Yuto shouted "Who are you and what do you think you are doing?" Yuto combined with Ruri and Shun store the ante duelist down. "For what I'm doing I'm just taking my reward he had a deal with me, his deck for the card he most wants in the world and you saw he lost," Folding his arms he said the next part "as for my name that would be Yali."

(Flashback end)

"I suppose you started as you meant to go on Yali." Yuto became enraged "Started with and ante duel and ended with one as well!"

"Someone is definitely still a bit touchy, I did what I had to do," Yali took his notebook out causing another snarl from Yuto "Everything went exactly as I planned you were none the wiser, it was simple, you Xyz scum never look two feet in front of your face, the answer was always right in front of you!"

(Flashback) (Day before the invasion)

Siting in a coffee shop Yuto, Shun, Ruri and Yali were minding their own business until Shun dragged Yuto and Ruri's attention to Yali

"Yali you've been writing non-stop in that book of yours for hours you can't possibly have that much to write." Yuto glanced to see Shun standing over the top of a sitting Yali in a domineering stance. "I assure you Shun it is all necessary." Yali put down his pen and leaned back in his chair flicking a loose strand of hair back into place, unfazed by Shun's temperament "Planning is the key to success." Ruri came to Shun's side "Shun leave Yali alone." Ruri pulled Shun away as Yali smiled "Thank you Ruri, he was starting to get on my nerves." Shun gave Yali a cold gaze as he was forcibly pulled away alongside Yuto as Ruri excused them to a secluded area nearby.

"Shun is something about Yali bothering you? You've been at his throat recently, that's not like you." Ruri looked over her brother who seemed to tense up every time Yali's name was mentioned, Yuto also looked concerned for his best friend's wellbeing but was also keen to know if Shun had found any dirt on Yali. Both had recently become suspicious of Yali's behaviour, he would too often note mundane things like the average number of buildings in an area down, was too protective of his notebook and seemed to use tactics that weren't taught in any duel school from around these parts.

"Something about that guy is just so off putting." Shun narrowed his eyes at Yuto gesturing for Yuto to continue on while he collected his reasoning, "It's like he knows something big is going to happen."

"The way he introduced himself to us also seemed like a show of force given how easily he finished Ryoga off I don't think it would be too far-fetched to say he has planned everything since the start but why would he go to such lengths." Yuto scratched his forehead hoping that when they came back Yali wouldn't be suspicious of them. "He seems to be the type to plan meticulously, I say when we go back and try to break it to him subtly." Yuto looked to Shun, "Shun please try not to be too rash."

Shun either didn't seem to know what diplomacy was or he had just tuned out Yuto's words as he recollected himself. "I say we go and say it to his face, possibly force a confession about his true intentions!" Yuto and Ruri sighed, it would take a long time to iron out the ceases in their plan.

Meanwhile Yali's was going perfectly he checked a nearby clock as the sun partially illuminating his notes. 'At 13:05 Yuto, Shun and Ruri leave me to discuss matters pertaining to why I'm really here, they are unable to figure out a plan on how to approach me before…' Smirking he closed the notebook. They've got no chance in making me slip up and give any information away, it takes the truth to fool me. He thought intentionally ripping out a page leaving it on the table as he stood up slowly fully aware he was being watched as he left.

"Ok so we're agreed in trying to get information out of Yali subtly." Yuto looked at Shun as he grumbled "Sure Yuto…"

"Hey, look Yali's left something on our table" Ruri pointed to the lone page which was left slightly askew, picking it up, they read the note together with confused faces at it content.

Xteg er ue ihr vtwvh is qbo hpng lb ztcd bmg qsn I'z jruway uweg inz fuhg [1]

Yours, Yali.

(Flashback end)

Yali crossed his arms and looked to his feet "You really disappointed me that day, I thought highly of you…" He brought his head up and shot a dejected glare in Yuto's direction "I'm still disappointed that despite all the clues I gave you and still continue to give you never figured out the key."

"Enough talk! Continue with the duel." Yuto snarled resisting his urge to strangle Yali as the person in question simply shrugged "Fine by me."

"Blaster's effect! I add Burner, Dragon Ruler of Sparks to my hand. Next I discard Burner with a Tidal in my hand to summon a second Blaster from my deck in attack mode. (2800/1800). Next I banish Burner and Tidal from my graveyard to summon Tempest to my field also in attack mode (2400/2200)." Yali check out the field before returning to surveying his hand "Hmm… If I know you well enough those facedowns are likely there to either prevent me from attacking or to set up as bait for me to destroy so you can activate their effects to summon them back from the graveyard." He clapped his hands together as his lips curled into a smirk "So I'll set two cards and at my turn's end activate the quick play spell Super Rejuvenation and since I discarded two dragons I get to draw two cards. It's your move Yuto so be careful next turn I won't be cautious and you will face the Wrath of the Drago Rulers!"

"My turn! I activate my two face downs The Phantom Knights of Shade Brigandine both of these traps are now summoned onto my field as level 4 monsters in defence mode (0/800)."

"Two level 4 monsters…I guess it is time for the ace to appear." Yali held his right shoulder slightly wincing.

"I overlay both Shade Brigandine to construct the Overlay Network!" Two black charges of energy flew into the swirling yellow vortex in front of Yuto as he chanted "Formed from pitch black darkness, to fight those foolish enough to oppose it with its treacherous fangs! Descend now! XYZ summon! Dark Rebellion XYZ Dragon!" The sensors in the Leo corp situation room went haywire as the dragon appeared two purple orbs floating around it (2500/2000) (OLU: 2).

"We both still bear the scars of that day, mine was mental while yours was physical Yali!" Dark Rebellion growled menacingly at the sight of Yali whereas his Dragon Rulers were itching to destroy the monster that had humiliated them and its wielder.

"I believe you are correct." Yali looked towards the Xyz dragon with nothing but disgust and loathing "My scars much like yours run deep." Yali turned his back lifting up his shirt to show a jagged scar resembling Dark Rebellion's tusks ran all the way down the right side of his body. He fixed himself back up before continuing "But physical pain is temporary, mental not so much."

"Dark Rebellion's effect! I use one overlay unit to halve your Blaster's attack and add it to my monsters attack! Treason Discharge!" The purple electricity voltage weakened the Ruler of Infernos as it let out a deafening screech.

Dark Rebellion Atk (2500 – 3900)

Blaster Atk (2800 – 1400)

"I use its second overlay unit to do the same thing!"

(3900 – 4600)

(1400 – 700)

"Battle! Dark Rebellion annihilate Blaster! Mauling Mandible Charge."

"Yes! Yes!" Yali's hands shook with excitement "Just as I planned! I knew you would do that! I activate the Continuous Trap Roar of the Dragon Rulers!"

"WHAT! You never used that card before!" Yuto was taken back by this unexpected development.

"You didn't think I used my full power back in the Xyz dimension! If you did you're even more gullible than I thought! And to think I considered you worthy!"

"Cut the crap! What does the card do?!"

"With Roar of the Dragon Rulers if I control two or more Dragon type monsters your monster's attacked is weakened by total attack of the monsters on my field!"

(4600 – 1500)

"Dark Rebellion is still stronger! The attack will go on!"

"I activate my second continuous trap Dragon Rulers' Domain! When an opponent's monster's attack is reduced by card effect you take damage equal to the change in your monster's attack!"

"How's that for a reversal Yuto! You thought you were going to come out on top but in the end you take 3100 points of damage while I only take 800!"

Yali (4000 – 3200)

Yuto (4000 – 900)

"I'll set two cards facedown again and end my turn. At this point your Dragon Rulers' main weakness is shown! At the end phase of my turn if they were special summoned they return to your hand!"

"It's not an issue and that's one thing you can trust me on for once, plus your dragon's effect ends too."

Dark Rebellion (1500 – 2500)

Cards x2

"My turn." Yali cocked his head to Yuto "Say if I received correct information before my departure there would be multiple Xyz remnants in the standard dimension, judging from the fact you're here I wouldn't be too far off saying that Shun would be with you, am I correct?"

Yuto sneered "You would be correct as usual Yali." Yuto spat out his opponents name as if it were poison.

Yali threw his arms out, slightly grimacing due to his scar "It's going to be one big happy reunion!" he narrowed his eyes "Well except one…"

Yuto flared up on the mention of Ruri's abduction "You always know more than you let on! Tell me where she is!"

Yali held up his hands "It's like I said I really don't know apart from the fact a friend of mine abducted her and from what I heard from him it was quite the entertaining show he put on for her."

A hysterical voice pierced the air causing both Yuto and Yali a great amount of shock "It's YOU!"

Yuto sighed as Yali laughed "There he is! Mister subtly himself!" Yali swung around to meet Shun face to face with a sicking grin.

"You have some sick and twisted mind ever to show your face again! You Scumbag!" Shun threw a punch which was quickly side-stepped.

"I'll make you rue the day you ever stepped foot in our dimension!" Shun continued to throw punch after punch all of which were avoided "You can't convict me of doing a-" one punch finally connected stopping Yali midsentence and sending him crashing to the ground landing decisively on his right side.

"AHHH!" Yali screamed in pain, complete ire in expression "SHUN YOU IDIOT! Do you have any idea who and what you're messing with!?"

"That was for all my comrades, all the people you betrayed, for all the innocent people you and your fusion freaks carded…" Shun paced towards a Yali who was in crippling pain rolling up the sleeve on his trench coat he thrust his fist towards Yali in an attempted knockout blow "And this is for RURI!" Shun's fist stopped suddenly inches away from Yali's face, the person in question who had closed his eyes in anticipation slowly opened them to see Yuto with his fist deep in Shun's gut.

"Why Yuto…" Shun fell onto Yuto's waiting shoulder as Yali attempted to struggle to his feet making it halfway there before collapsing, for once in his life at a loss for words. Yuto approached him refusing to make direct eye contact, his eyes were barely visible under his googles "Yali you're not in the clear, you're every bit as guilty as Shun says the only reason I stopped him is that I don't believe in punching the answers out of you, I'll make you pay in due time." Yuto then proceeded to deactivate his disk and stamp down on Yali's crushing and destroying it in the process. 'Duel Terminated'

"I…I…It doesn't…M-m-m." Yali's will to stay conscious faded as he drifted out of the real world leaving him with only one thought before everything went completely black.

'It doesn't matter what I did! The ends justify the means!'

Yuto gazed at both passed out individuals. The one lying on his shoulder was a true friend who always stood by his side through thick and thin and while he could be hot headed at times he always respected him no matter what. However the one lying on the dock in front of him meant nothing to him it was disgusting even to look at him, anger swelled up inside of him, he wanted so badly to end it all but he couldn't just disregard what Ruri had said.

The sun illuminated an item lying next to Yali's body, Yuto bent down to pick it up he couldn't believe his eyes he was holding the notebook which was the cause of so much of the anger he felt towards its owner, amply nicknamed as the 'Book of no return' by the resistance so many had their names written in this book all had vanished ever since, it was theorized they had been carded but no proof was ever found. Reading through the pages nothing seemed to stand out much of the things he saw he fully expected from an Academia member however one page caught his attention and his jaw dropped at its contents.

"How…Why…Does he know that?" Yuto tore the page out to making sure that he was as careful as possible so Yali wouldn't notice that it had been removed before setting it back beside the owner.

He walked on dragging Shun over his shoulder to where they were hiding out, next day Shun was due to search for the Professor's son and any goons he might have, he was supposed to go out as well but know he wasn't sure, it was all hazy now, even unconscious Yali had a way of getting to them.

A/N 2:

I'd like to know what you think of the OC character Yali. He won't be in the next two or three chapters so you get a break if you don't like him.

I decided to give Yali the same role as Dennis in the Xyz dimension but for him to go about it in a slightly different way. The character I've set out for him is of a meticulous planner able to adapt to any circumstance that may change his original. As for the Note he left behind which was seemingly gibberish it's an actual message that I encrypted post your ideas in to what the message is I would like to see if anyone can figure it out, I've given you two clues to help you crack it so Good Luck!