Multiverse Cross Ex

Mitsuya Kimitsuki had always been a fan of the Mecha genre.

He couldn't remember when it started, but there was something about giant robots fighting epic battles that just clicked with him.

Maybe it was all the Power Rangers and Kamen Rider shows he binge-watched as a kid.

Yeah, that was probably where it all began.

Naturally, he thought his fascination would end there—with flashy explosions, color-coded heroes, and motorcycles that transformed into robots.

But then, he stumbled upon the Mecha genre.

And, well… what could he say? He was hooked. Gundams, EVAs, Knightmares, and Arm Slaves—he loved them all.

There was no turning back after that.

His room? Covered in posters of giant robots. His shelves? Overflowing with model kits and figurines.

It might've been a little… obsessive. But hey, everyone needed a hobby.

Now, here's where his story took a turn for the interesting.

The last thing he remembered was heading out to pick up a limited-edition Mech figurine.

It had just been released, and there was no way he was going to miss it.

To his surprise, he wasn't the only one who wanted it.

The shop was packed with people, all scrambling to get their hands on that one precious collectible.

Fortunately, he managed to snag one before it sold out.

He was on top of the world, holding his prize like it was a sacred relic.

His mind was filled with thoughts of unboxing it, posing it on his display shelf, maybe even showing it off online to make some people jealous.

But fate, as it turned out, had other plans.

On his way home, he ran into… well, him. Our friendly "runaway stabber." Before he could react, the knife was in his chest.

The pain was brief. The shock? Not so much.

As his vision dimmed, his mind raced. This wasn't how things were supposed to end.

Not like this.

And then… he woke up.

To his disbelief, he found himself standing before a Random Omnipotent Being (or ROB for short—yes, that was apparently a thing).

He would admit, he was a bit starstruck.

You hear about these encounters in stories and fanfictions, but seeing one in person? Surreal.

Naturally, the ROB offered him a wish.

You know, standard procedure for reincarnations and second chances.

Now, here's the thing.

Most people would've gone for something simple but game-breaking: omnipotence, immortality, the power to jump between worlds, or maybe a harem (hey, he didn't judge).

But him?

Without even thinking, he blurted out:

"I want to own a huge Mecha that can travel through dimensions with its own supercomputing AI that can manipulate Quantum Mechanics."

Yep. That's what he went with.

He half-expected the ROB to laugh in his face or tell him to pick something else.

Come on, it was a ridiculous request, even by fantasy standards.

But to his surprise, it was accepted. However, as it turned out, his wish was over-the-top.

Apparently, Quantum Manipulation was an insanely powerful ability, so he was going to have some restrictions.

"Fair enough," he thought.

As long as he got to pilot a freaking Gundam, he wasn't complaining. And that was how he ended up here.

Mitsuya Kimitsuki.

Once a Mecha enthusiast with a tragic ending, now a guy with a gigantic, dimension-hopping Mecha.

It was a dream come true.

Of course, it wasn't all sunshine and rainbows.

There were challenges, limits to what he could do, but honestly? He wouldn't trade it for anything.

Because as long as he got to live out his childhood fantasy—fighting epic battles in a giant robot, and exploring the unknown—then everything was worth it.

And that brought things to the present.

7:10 AM

The sharp blare of Mitsuya's alarm clock jolted him awake. He groaned, rubbing his eyes groggily as he sat up in bed.

"Haah~"

Stretching his arms with a wide yawn, he covered his mouth before sluggishly getting to his feet. His destination was clear—straight to the bathroom.

The routine didn't take long. By 7:40 AM, Mitsuya was already in the kitchen, preparing breakfast.

The house he lived in was a luxurious duplex, spacious and modern, with polished surfaces.

After settling there the day before, he had submitted his application to Ataraxia Academy.

Today, he'd be heading over to finalize the admission proceedings and take care of the remaining details.

Sitting at the dining table, Mitsuya grabbed a piece of toast, lazily munching as he activated his personal assistant.

"Navi. Update on the findings and ," he said between bites.

[Answer: The has been completed. The is currently in the final stages of construction]

[Additionally, regarding the target Hida Kizuna: Analysis suggests that the individual will likely arrive at Ataraxia within a week to one month's time]

"Hm~"

Mitsuya muttered nonchalantly, stuffing another piece of toast into his mouth.

If that was the case, there was still time.

Finishing up the rest of his breakfast and ensuring everything was in order, Mitsuya stood and grabbed his bag.

It was time to leave.

⸻Currently.

Mitsuya was inside a room.

One that seemed to belong to a higher up of an organisation of the sorts. No doubt this was the office of the Commander of Ataraxia.

Seated on her seat, crossed legged.

It was a woman, long black hair and dark blue eyes. wearing a white uniform with a white coat over shoulders akin to that of a cape, a tight blue knee-length skirt and blue high heels.

She is very beautiful with a voluptuous figure.

"Mitsuya Kimitsuki, I see. You're also a Hybrid Gear user."

She said so after going through his papers in her hand, herself.

"That makes things easier, then."

She said, leaning back slightly.

"What do you say about a test? Against one of our students? Take this as your entrance exam instead."

"People like you aren't exactly common. There's no need for all the red tape."

Normally such procedures would have been a lengthened one.

Dealing with papers, documents, aptitude tests, background checks and a whole lot.

However, it's a different case for someone who can use a Hybrid Gear.

Hybrid Gear technology, the brainchild of a genius inventor, was exceedingly rare. Those capable of utilising it were even rarer.

The Commander, skipping all formalities, summoned a specific student for the task and led Mitsuya to an open training field.

Training Field.

"Commander, you call this an exam, but what's with the crowd?"

Mitsuya asked, his eyes scanning the stands. A small audience had gathered, their gazes locked onto him with a mix of curiosity and intrigue.

In response, the Commander, Reiri Hida simply took a glance over at him.

"You on the other hand. You sure you don't want to change into a training suit?"

"No. I'm okay like this."

Mitsuya replied nonchalantly, dressed in his comfy, T-shirt nd black trousers.

Just as he spoke, his opponent emerged from the other side of the field.

Despite being called a training field, it more closely resembled a grand coliseum, its design clearly meant to host high-profile duels if anything.

"Ara, are you my opponent?"

The one who said that was a blonde-haired girl, with an extremely voluptuous body.

She wore a blue suit that hugged her body tightly as her whole breast and swayed with each step she took.

'So, she's my opponent then?'

Mitsuya thought, assessing her as she closed the distance.

"Well then, are you both ready?"

At some point, by the time Mitsuya's opponent had arrived, Reiri had left the field and had joined the few spectators.

"Anytime~"

The blonde girl hummed cheerfully, and Mitsuya could feel her confidence through the roof. On the other hand, Mitsuya nodded.

"Well then," Reiri raised her hand before bringing it down. "Begin!"

As Reiri had given that command, the blonde haired girl—Yurishia Farandole had donned her Hybrid Gear. "Kuros."

Hybrid Gear.

A Magic armour so to speak. As long as the wearer possesses a core embedded inside their body, they can call out the armour anytime they wish.

The armour is modelled after a vertebral column that ran on her back as if in protection of her spine.

And then, the largest thruster appeared on her bottom. This part was responsible for the majority of her propulsion force.

On the other side, the front part of the body had surprisingly few areas which were protected.

There was also a barrier around the field for protection.

All of this has been relayed to Mitsuya by his personal assistant.

Upon absorbing all this information. "Mythos." Mitsuya muttered.

Mitsuya donned his own Hybrid Gear, if one could call it that, a sleek sword and what appeared to be an old, clunky cellphone straight out of the 90s.

"What is that?"

"Does he think this is a joke?"

Naturally, he got a few questioned stares from the spectators around; after all, the whole idea of a hybrid gear is it being a magic armour of sorts.

Even Reiri couldn't hide her irritation. "Examine Mitsuya Kimitsuki; does this exam seem like a joke to you?"

Mitsuya turned to her lazily, his expression unbothered even under her glare.

"No mistake, ma'am, this is my Hybrid Gear, or something I'd like to call Hybrid Cross."

He said that much with a shrug and a light tone.

Seeing as he looked resolute, despite the slight dissatisfaction even she had, Reiri allowed it to continue.

"Fine then. I hope you don't show us a pathetic display."

As Reiri said that, Mitsuya now turned to Yurishia, who was sizing him up.

With such a defenceless person as this in front of her, how should she attack?

She wondered. However—

"Your worries are unfounded, miss."

Mitsuya said suddenly, his voice cutting through the murmurs. Yurishia blinked, surprised.

"Attack me however you like."

He continued, his tone confident, almost cocky. With a grin that spread across his face.

"It won't matter. After all—"

He planted his sword into the ground, meeting her gaze with a condescending gaze.

"I'm the strongest."