After the duel, Den and his Allies were back in the break room from Kira's training.
Kira: Well that was a good duel.
Jin: Yeah, I'm kinda shocked that you have Ice Barrier heritage.
"Wait... she has Ice Barrier Heritage!?" Aqua asked in sign language.
Den: Yep.
Azure: Well... that's a shocker.
Kira: Hey where's Ryu?
Lila: He just needed some fresh air, he'll be back shortly.
Rachel: I'll go get him,
Den creates a portal for Rachel but beofre she left Den gave her a warning.
Den: Careful with him, he doesn't take kindly to those he doesn't trusts.
Rachel: I'll... make sure of that.

[There should be a GIF or video here. Update the app now to see it.]

Meanwhile, Ryu Draco was watching over the night sky on the rooftops by himself. Soon He was confronted by Rachel Sato.
Ryu: What do you want?
Rachel: I came to look for you. What are you doing out here by yourself?
Ryu: It's none of your business.
Rachel: Geez. No need to be rude,
Ryu just scoffs and turns his head back at the night sky.
Rachel: You weren't there when Kishinami introduced us to your friends, who are you?
Ryu: Ryu Draco, I'm Kishinami's Rival.
Rachel: Rival? What's your relationship with him?
Ryu: He and I, Get along well, he's one of the few people I trust along with Kira.
Soon a black coat appeared behind the Rokket duelist and the Rose-Red Duelist
Black coat: Ryu Draco, I finally found you!
Ryu just scoffs in disgust. when he saw the black coat.
Black coat: Your gonna pay for abandoning us!
Ryu: I'm not coming back, I found a new path.
Black Coat: then I'm just gonna have to force you to come back.
Ryu: Stand back,
Rachel: No I'm helping you,
"I said stand back," Ryu said in a cold stern voice.
Rachel startled by Ryu's raised voice did as she was told.
Both duelists insert their decks as they both said the word.
Ryu/Black Coat: DUEL!

Ryu Draco LP: 4000
Black Coat LP: 4000
Turn 1: Black Coat

"I'll go first." The black coat said as he drew his card.
Black Coat: I summon, Chainsaw Insect!
Soon a giant insect with chainsaws as teeth appears

Chainsaw Insect
(EARTH/Insect/Effect) - LVL: 4/ATK: 2400/DEF: 0)

Black Coat 1: That ends my turn.
Rachel: a monster with 2400 ATK?

Turn 2: Ryu Draco

"Hmph, this won't take long," Ryu said as he drew his card.
A dark blue circle started glowing below the Rokket Duelist
Blue and silver armor pieces started attaching to his body
When the transformation was complete he was wearing blue armor with silver pieces.

Ryu: A Shame that it has to end like this.
Ryu revealed a card that showed a constellation of a Barian symbol 
Rachel's eyes widened. She can't believe that he has that card.
Ryu: I activate Rank-up Magic: The Seventh One!

Rank-Up-Magic: The Seventh One
(Spell/Normal)

Ryu: This lets me Xyz Summon a monster from my Extra Deck and I choose Number 107 Galaxy-Eyes Tachyon Dragon
A Navy colored dragon with neon red lining and hi-tech wings with the number 107 engraved on the right side of its head appears

Galaxy-Eyes Tachyon Dragon
(LIGHT/Dragon/XYZ/Effect) - (ATK: 3000/DEF: 2500)

Ryu: Not only that but I can upgrade it to something more powerful.
Ryu: Behold my Spirit Partner, Chaos Number 107: Neo Galaxy-Eyes Tachyon Dragon!
Soon the dragon begins to upgrade to a dragon with gold armor with three heads and the 107 number was carved on the dragon's right chest plate.

Neo Galaxy-Eyes Tachyon Dragon
(Light/Dragon/XYZ/Effect)
(Rank: 9/ATK: 4500/DEF: 3000)

Ryu: I'll then activate the spell Raigeki! Which destroys all of your monsters.
A lightning bolt appears and destroys Chainsaw Insect.
Black coat: Impossible!
Ryu: You shouldn't have challenged me. Now Go, Neo Tachyon, attack! Neo Tachyon Spiral!
The three heads of Neo Tachyon charge up a blast obliterating the black coat.

Black Coat 1 LP: (4000) - (4500) = 0

"You haven't seen the last of me Draco!" The black coat says as he ran off.
Rachel: Ryu was that the-?
"Yes, It was the Rank-up Magic the Seventh One card. Do you have a problem with it?" Ryu asked coldly as he returns to his original form.
Rachel: Of course I do! Do you have any idea how dangerous that card is?!
Ryu: it is. But Only to those who don't have a strong bond with any of the Chaos Over Hundred Numbers.
Rachel: We should head back, Kishinami and the others are worried about you.
"Fine," Ryu said  as he creates a portal and heads back with Rachel following him,