At the headquarters of Joker, Jeanne, and Author...

(Everyone is gathered around to watch the fight between All Might, All For One, and Author).

Shigaraki- This will be interesting to watch...

Nighteye- I agree.

Nana- But...I feel like Author is going to hold himself back.

Author- Right, before we get started, how much power do you two want me to limit myself to Quirks or do I use other powers from other worlds? Other universes?

All For One- I suggest you go all out. We don't want to be treated like children.

All Might- Is it fine for me to use my Muscle Form? I've reached my limit a long time ago.

Author- No problem. I've generated a field that will allow you to use your Quirk freely. Even you, All For One.

All For One- Thank you.

All Might- (Going into Muscle Mode) I feel like my prime time already.

Jeanne- Don't be too hard on them!

Joker- Give them hell! Don't make a fool of yourself!

Nighteye- I want to see how strong Author is.

All Might proceed to charge up his Quirk. "All For One, you mind?" All Might asked. "Not at all. I'm going to do the same thing." All For One said as he increases the size of his right arm and charging up Air Bullet quirk. "SMASH!' All Might screams as he punches air, sending a torrent of destruction while All For One sends his Air Bullet towards Author.

'Alright, defense time." Author said as he claps his hands. "Triple Rashomon!" Author shouts as he creates three gates from the ground, stopping the attacks. "How?! All Might's Smash can change the weather while All For One has several Quirks!?" Gran Torino said with shock. "The two are facing someone who can literally access every single power from every single beings across the omniverse. He got this." Jeanne said.

"My turn." Author said as his eyes glowed and his whole body glows. "He's transforming into a Super Saiyan?!" Kaminari said. "No. It is a Super Saiyan but..." Jeanne said with a little worry as the glow diminishes, he looks different. "Did he just transforms into a hybrid of Super Saiyan Four and Super Saiyan God Super Saiyan?" Sero asked with surprise. "With a hint of One For All and...Baryon Mode. He's going to break them." Joker said with glee.

All Might runs up towards Author and tries to punch him but it didn't even make him flinch. "Nice punch. Felt like a breeze." Author said as he chuckles before he grabs All Might by the neck. 'Now, where is...?" Author asked before All For One appears beside him. "Shockwave!" All For One shouts as he unleashes a shockwave blast on Author, sending him flying. "All Might, use the final move." All For One said as he keeps on unleashing Shockwave on Author, keeping him at bay.

"But...there are people here." All Might said with worry. "Don't worry, the field will hold back all the power. That's why I can access this power easily." Author said without even looking tired.

"Well then, keep him busy and distracted." All Might said to All For One. "My pleasure." All For One said as he changes his Quirks. "Using Muscle Hypertrophy, Hyper Speed, Analysis and Titanium Skin, time to distract." All For One said as he went to fight Author. Only, it is a one-sided battle on Author's favor. "Are you done?" All For One asked as he is struggling against Author.

"Almost." All Might said as he is focusing his hit directly on Author. "If he's using United States of Smash, then, I will let him. And All For One...you're not hitting me hard enough." Author said before he kicks All For One real hard, sending him flying away. "UNITED STATES OF SMASH!" All Might roars as he lands his final blow on Author, engulfing both of them in a cloud of smoke.

"Is it over?" Shigaraki asked. When the cloud dissipates, Author is still standing and All Might's fist is on his face. "Well, that's that." Author said nonchalantly. "How?!" All Might asked with surprise while All For One is speechless. "It's because I used every single defense ability to block the attack. Even if I didn't do that, I can take it point-blank." Author said before he lands a kick on All Might, sending him flying.

"Well, that's all I have." All Might said as the two got back up on their feet. "I think it is time for me to do my final move." Author said as he deactivates his form. "Final move?" All For One said with surprise. "Is he...going to use that?!" Jeanne asked with surprise. "Use what?" Izuku asked with worry. "The move that literally took me down when I was under a spell." Joker said with a bright smile.

"Demonic Smash!" Author roars as he punches the air in front of him, cracking the fabric of reality and hit both All For One and All Might, making them feel fear.

"Alright, the battle is over." Jeanne said as the field is closed and All Might and All For One are badly injured. "Healing time." Author said as he raises his hands over the two and healed them.

All Might- Wha...what happened?

All For One- All I remembered was a massive fist coming towards me.

Author- Sorry. Kinda letting myself go in that battle.

Nighteye- It is quite...a battle.

Jeanne- In the meantime, I'll get Daichi. He is free right now. (Leaving through a portal).

Kirishima- Author is really strong!

Bakugou- I'm glad I didn't fight him.

Uraraka- If Author is that powerful, Joker must be powerful as well.

Author- I am strong but using too many abilities or even stacking more than ten of them will have a toll on my body.

Aizawa- A reasonable weakness.

Midnight- But, you are still powerful. Powerful enough to go head-to-head with All Might and All For One.

Author- Thank you. Anyway, any questions?

Mina- How is your child?

Author- He's fine. Next week, he's going to start college. They grow up so fast.

Present Mic- Any idea what is his career choice is?

Author- Actually, he wants to become a dancer and singer. His mother is fine with it and I am too. He is really good. Especially since he learns from the pirates with their shanties.

Mina- Ooh, if he wants to learn dancing, I can teach him.

Author- I'll let him know.

(Jeanne then came back through the portal with Daichi).

Daichi- I'm back. Ready to watch the preview of my life. Wow...I can't believe I said that.

Jeanne- Right, let's get start with the preview.

Author- Right...here we go!

(The scene then starts with a city filled with people).

"Life was normal. Everything was normal...until the eruption of an extraordinary happens." A narration starts as the electronic stores stocked up something on their windows.

"Two companies...the Kaiba Enterprise and the Sento Corp. A highly-advanced tech company and a famous game company. The two put their heads together and created a new game based on a famous card game and anime...Yu-Gi-Oh." The narration continues as kids and adults of various gender and races enter the stores and buy decks and devices connected to them.

(The scene then shows a knight fighting against a humanoid skull-creature with wings while in real life, two kids are wearing VR headsets and gears, controlling the monsters).

"With the technology, people can play the card game in real life and give them real-life experience." The narration continues as more decks are being stocked up in stores.

(The scene then changes to a guy working on a homemade device in a junkyard).

"Daichi, are you working on your Duel-Deck again?" A voice called to the guy. "Well, all my friends have the Duel-Deck. With a lot of parts here, I can make my very own Duel Deck." The guy said as he continues tinkering with the Duel Deck.

(The scene then changes to him looking through the window of a store at the numerous decks of Yu-Gi-Oh cards stacked in front).

"I can still buy them..." He said as he looks at his phone, which shows his bank account and how much money he saved.

(The scene then shows him working in a workshop and a lot of people coming in with battered Duel Decks).

"Welcome to Duel-Build Workshop! Where we take in your Duel Decks and fix them as well as giving you guys tips on what cards you use!" Daichi said with a cheery tone.

(The scene then changes to a split-screen, on the right, Daichi working and fixing people's Duel Decks as well as looking at different cards that they have. On the left, he is working with his own Duel-Deck, upgrading it with 3D printed versions of parts that he copied from fixing other Duel Decks).

"You're nearly done, kid?" A voice asked as Daichi turns to look at a woman. "Not yet, Aunt Cassandra. I just need a Yu-Gi-Oh Deck. I've been saving my money for one deck." Daichi said as he is looking at a picture of Blue-Eyes White Dragon.

(The scene then changes to him meeting a girl in the shop).

"So...you've built your own Duel Deck? From different parts?" The girl asked as she looks at the homemade Duel Deck. "Yes. It is not illegal, right?" Daichi asked. 'No... This Duel Deck is quite good for being made with different versions of Duel Decks." The girl said before she pulls out a deck of cards.

(The scene then changes to him running away from a massive black dragon).

"WHY IS THERE A RED EYES BLACK DRAGON CHASING ME?! HOW IS THAT THING EVEN CHASING ME AND DESTROYING THINGS!?" Daichi screams as he tries not to look back.

(The scene then changes to him donning the Duel Deck and he is donning an armor similar to Blue-Eyes White Dragon).

"I'm fused with Blue-Eyes White Dragon?" Daichi asked with surprise as he looks at his hands and a large blade stabbed into the ground.

(The scene then shows him meeting with the girl from before).

"So...you've accessed the Hybrid Mode." The girl said as she looks at the guy from above a broken car. "Who are you?" Daichi asked as his armor fizzles off. "Natalia Turner. Designer of Duel Decks and the creator of the Hybrid Mode." She introduces herself with a wave.

(The scene then changes to him and Natalia looking at fifteen decks).

"These fifteen Decks were designed by the cooperation of Kaiba and Sento companies. However, these fifteen Decks were stolen from the department by a mysterious figure. You are to retrieve them back." Natalia said.

"And how do I do that when I only have...oh, I don't know...Blue Eyes White Dragon?" Daichi asked. "That is not the only card that you have in your inventory." Natalia said as she gives a deck to Daichi.

(The scene then changes to Daichi facing an army of Kuribohs and leading the Kuribohs is an Dark Archfiend).

"Alright, time to test the new deck." Daichi said as he takes out two cards.

(The scene then shows him facing fifteen cloaked figures).

"So, you're the hero that they're sending?" One of the cloaked figures asked with mirth "I'm just a guy who wants to protect the world." Daichi retorts back as he went into a defensive stance.

(The scene then shows him facing a guy using a Beast Eyes Pendulum Dragon armor).

"I'm going to protect the Code. Anything that disrupts them...will be eradicated." The new guy said as he raises his black Duel Deck. "You're not going to stop me, buddy." Daichi said as the two clashes once more.

(The scene then changes to Daichi and Natalia going out).

"It is important for you have a rest day. You can't just go around and fight 24/7." Natalia said as she is looking at her tablet. "And yet, the one who is telling me off is doing work on her work-tablet while we're in a cafe." Daichi said as he looks at her with a deadpanned look.

(The scene then shows Daichi looking at his deck).

"Don't worry, Aunt Cassandra. I will bring you back." Daichi said as he grips his deck.

(The scene then changes to him struggling against one of the cloaked figures that is donning a Starve Venom Fusion Dragon mixed with Cyber End Dragon).

"You're weak. Pathetic. No wonder your parents left you." The cloaked figure said with evil glee, causing Daichi's pupils to shrink. "YOU WILL PAY FOR THAT!" Daichi screams with anger and despair as he's engulfed in a dark aura.

(The scene then shows one of the cloaked figures, in Black Rose Dragon armor, fighting one of their own protecting Daichi).

"You're protecting him, Lena?!" The cloaked figure said with surprise and anger.

"I see the Code is a corrupt order! I will not join your cause no more!" Lena said as she heals Daichi.

(The scene then changes to him, Lena, and Natalia looking at a hologram of a massive tower).

"The Code is planning to corrupt everyone across the world with the Dark Echo Virus. When uploaded, nothing can't stop them." Lena said as there is a large signal tower giving out a signal.

"Well, we got our protector. And he will not be alone..." Natalia said as she shows them a gold Duel Deck on her right wrist.

(The scene then changes to Daichi facing off a cloaked figure donning Malefic Paradox Dragon armor mixed with Hundred Eyes).

"You cannot stop the Code! Our goal will be realized!" The cloaked figure shouts maniacally as the sky is turning black and a large storm is brewing across every continent.

"I will not stop until evil is gone. I will keep on fighting. Until my very last breath!" Daichi roars as he clashes with the cloaked figure.

The Duel Keeper! Coming Soon!

(The scene then changes to Daichi, Lena, and Natalia in Daichi's workshop, looking at scattered cards on the floor).

"You've been spending time collecting cards from the junkyard?" Lena asked. "Yeah. It's kind of my hobby." Daichi said as he looks at the cards sheepishly. "We can use them for the battle. Even...that..." Natalia said as she picks up the five pieces of Exodia.

Author- And that is the preview.

Daichi- Yeah...I still remember what happened. I'm still updating my deck anyway.

Kaminari- I can give you more tips. I even have some of my old cards that I'm not playing anymore. Question, can I give him my cards?

Jeanne- Yes, you can.

Joker- Right, chow time! I'm going to cook!

Author- Right, we'll move on. The next five previews will be...

1. The Assassin Keeper.

2. The Assassin Knight.

3. The Assassin Protector.

4. The Ultra Sentinel.

5. SCP Neo.

Momo- Why are there three Assassins on the list?

Joker- Those Assassins are the best. I like their stories.

Jeanne- We know. Joker always wanted to be an Assassin.

Author- Right, we can't spoil too much. Until then, see you guys next time.

Jeanne- Ja Ne!

Joker- SEE YA! NOW, LET'S START COOKING!

Daichi- I got some booster packs and booster boxes from the stores. Care to open them with me?

Kaminari- I'm in front of God.