The story vault

The mechanical little brother!

In this episode!
Y/n tennyson(Jr) × Gurann lagann!

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The Gunmen. Giant machines piloted by creatures called beastman. For unknown reasons, the gunmen hunt down humans. Either it be from fear of what humans could possibly do, or just for fun. This motion drove most, if not all human civilizations to hide underground, and living in areas called "pits".

Y/n Tennyson was one that lived in a pit that had actually become rather technologically advanced. The entire pit is running with miracles in technology. So why don't they just create their own gunmen to fight back?

Well, they're scared. The gunmen are powerful, but there's plenty more than the ones they saw above. Those ones are weaklings compared to the real threat...

Y/n Tennyson had lost his wife and unborn son in an attack by a gunman when an idiot tried to sneak out the pit while it was nearby. Leading to many casualties. Y/n was in agony at his loss.. but he couldn't dwell on it.. at least... Not right now.

After the death of his wife and child, y/n spent the next three years of his life to recreate his son as a growing AI program.

And he was successful

A holographic AI that looked like a much younger version of himself was created. He named it what he wanted to name his child...

Y/n: "y/n junior... My son.."

The young looking hologram AI looked at the man in awe. While it seemed as though he was completely artificial, he still was able to express emotions...

For the next five years, y/n and y/n Jr. Lived the best lives they could. But when yet another attack happened in the pit, y/n senior had enough. He was going to build a weapon to fight the gunmen, and take back the world that once belonged to humans. But what exactly did he have in mind for it..? Well. It was a dying wish from him to his son that y/n Jr. Would be the chosen one.

Y/n senior built a large robotic body. While compared to gunmen, it looked small, and weak, It actually had a hidden talent. This machine was much skinnier, and had proportions compared to that of a ten year old child, and a soft looking face. It was primarily white and green in color, a green hourglass symbol on the chest, and to even give the gunmen even more embarrassment, the machine had chubby cheeks using artificial skin like textures. Making gunmen die from embarrassment alone when losing to it.

It took another five years for it to be completed... But another attack has occurred. It started when y/n senior was in the middle of downloading y/n Jr. Into his new mechanical body.

Y/n Jr: "papa.. are you-"

Y/n senior: "I'll be fine kiddo. Just focus on getting yourself in the body"

Y/n Jr: "b-but-"

Y/n senior: "no buts! Listen to me bud. You are our only hope... Please"

The hologram of y/n Jr nods, as the hologram flickers.

Y/n senior: "your mother would be so proud... Even if you aren't our actually son.. I.. we still love you.."

Y/n Jr: "papa..?"

The hologram flickers, as the ceiling comes crashing down, crushing the old man in the process. The hologram screams in desperation, but it disappeared, leaving the empty pit with nothing but a gunmen.

Gunmen: "that all? I was just getting started!"

The gunmen started swinging around it's giant arms, smashing them into the walls of the pit. Suddenly, a green glow emits from underneath some rubble. The gunmen looks over confused, until something bursts out of the rubble. It was y/n Jr in his new body, and a not so gentle expression on his face.

Y/n Jr: "you hurt papa..."

Gunmen: "the hell? when did the humans build their own mechas?"

Y/n Jr: "I'll hurt you for hurting papa!!"

The robot ran forward, and jabs his fist into the gunmen's torso face, sending it to the ground. Y/n Jr then smashes his fist together, as small Nanomachines begin to cover his robotic body. It grew larger, and larger, until it towered over the gunmen in a new form.

It's main body was black and white, its arms and head were cyan, and coursing with energy. Then, the said energy bursts from the wrists, and formed a pair of energy hands, as one of them turned sharp, and in the shape of a blade.

In a swift movement, the new form of y/n Jr's physical body thrusts his hand, stabbing it through the gunmen, exploding it from the inside.

The form then returned to the much smaller form of y/n Jr, as sniffling can be heard.

Y/n Jr: "p-papa..."

The machine drops to his knees, hiding his face in his hands.

Y/n Jr: "PAPA!!!"

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Overview!
Y/n tennyson Jr. Is a human built mecha, piloted by an AI boy. After the loss of his father, y/n must travel the lands above his home in search of a new one... He'll definitely find one eventually.