In 20XX, an unknown mineral fell from the sky as a meteorite and landed at [Redacted] at 0450 hours. Its effects would not be immediate until 4 days later, when the first monster arrived. Beast Zero, for the first monster's name was taken out after 3 grueling days of fierce combat, where millions died and more inured as damage has spread due to its rampage. However, it wasn't the end, but the start when scientists discovered more of these creatures coming from deep space, much larger than the last. Despite this new threat looming over humanity, a hope was found in the unknown mineral, which was dubbed as mechanium, which would lead to the latest development of science and weaponry. With this material, a new organization was made, called the National Organized Monster Prevention Hold.
"I know that, so why am I here?" A young man asks, looking at the general and scientist ahead of him.
The young man was in his twenties, red hair cut short, and green eyes while for the scientist, he was an elderly man, though he carried a maniacal look in his eyes.
"Lieutant Jordan, this was done after several tests and you're a suitable subject to deal with the the new advancements!" The scientist explains happily, though Jordan wasn't too pleased with it.
"Dr. Stein, I suggest your calm." "Anyways, you know about the origins, then you already know about the mechs built, right?" The scientist coughs, Jordan nodding.
"Are you aware of what transformers are?" The scientist asks, Jordan nodding.
"The toys or the electric poles?" "The former. What are you aware about their lore, from a biological perspective?" Dr. Stein asks, Jordan pausing a bit as the general rolls his eyes.
"I know they're tech based lifeforms?" "Exactly! My grandson loves them, but ignoring that matter, the mechs are what you call techno-organic in nature, regardless of nature of their build." Dr. Stein explains, reaching a large door and opening it up to a large hangar.
"Hello," a thick, yet feminine Russian voice bellows at them from above and Jordan takes a step back.
Facing them was giant boot, but going up it, was a silver woman, her green eyes staring at them sternly. With long flowing hair reaching her back, she was a muscular woman, with an eight pack abs and hardened legs from training. However, her human traits ended at he arms, where they were mechanical limbs and were constantly shifting around. Her cameo tank top was holding back her literal massive breasts and her black shorts straining against her large ass.
"This is Tanya, aka, Red Death of Russia. Here's her file!" Dr. Stein explains, handing over her files.
Name: Tanya (Red Death)
Deployed: The first one made (accidentally)
Height: 500 m
Weapons and any other powers: Robotic arms can form into any weapon RD desires and seems to have no ammo limit, though it's based on her energy levels. Capable of constructing anything she wants.
How is she controlled: Human Mind, now with remote control (edited)
"What do you mean accidentally?" Jordan asks, Tanya coughing.
"I was given these arms earlier after fighting Beast Zero and... I changed," She explains.
"She was..." "Human? Yes, hence why mechanium is so unique! Had her arms made of it and it mutated her into a mecha mutant to say the least! It seems to have a similar affect too on the other mechs from the opposite end!" Dr. Stein explains.
"Wait, the mechs were machines before becoming a cyborg?" Jordan asks, before a loud rumble shakes everything and a heavy smell of oil and... shit hazes the hangar.
"Sorry, I farted!" Another voice, being the typical valley girl voice coming from another mech coming them, waving her hand behind her ass.
Short ponytail of black, she looked like a silver latina, if not more robotic compared to Tanya. While her breasts were probably D-cup, her ass was much larger, with each cheek wide enough for a single mech width. She was somewhat about 50 m short than Tanya and was wearing jeans and a blouse.
"That's something you'll have to get use to, but that's Maria, Border Defense and has the power of barriers."
Maria smiles at Jordan and licks her lips flirty.
"Maria, god, why can't you fart elsewhere, or stop farting!" Another voice adds, with a British flair to it. Looking past Maria's wide rear, A robotic knight and a what seems to be a robot panda in a black & white Chinese dress approaches the humans and mechs. The knight lifts her visor and reveals a human like face in it, though enlarged to match her frame as she stood around Tanya's height. As for the other one, she was fat, to say the least. Her boobs were big, along with her ass, but her belly was the most prominent thing on her. Every movement sent her body jiggling and she was holding a staff.
"Those two are Emily, the Royal Knight of the UK, and Xi, the Panda Glutton of China. Emily is a sword master and is able to conduct electricity, despite not being built with that function," Dr. Stein explains, Emily raising a finger as electricity sparks across it.
"As for Xia, she's a brute type, being a close range with martial arts, but there isn't much issues to worry about though with it. It also works well with her eating the monsters," the scientist explains, going to China's mech and Jordan notices a jaw-like line on her large stomach.
"She has a mouth on her torso too and is largely the main source for our mechanium, as she's capable of digesting anything. But fret not! She can't digest humans, though it's quite an absurd experience, so claimed one of our former employees after their trip through her. We're still studying them."
Xi pats her belly before burping into her fist and one more mech arrives.
"Oh! Kiyoko returned from her mission. This is Morph Beast of Japan, as she can transform into any kaiju she knows of and seen!"
Looking at the new mech, she was basically a reptilian version of a Gundam with probably the largest breasts among the current mech girls.
"Hi y'all! You miss me?" She asks, doing an idol pose.
"There are others, but they're off doing missions, with Germany's working with Korean's in Antarctica and Africa's dealing with some of the terrorists in Austria with Brazil's. Those are the examples, but as for you as I've been going off topic, you'll be piloting one of these mech girls into battle. However, each one has a different cockpit location..." Dr. Stein finally gets to explaining Jordan's purpose, with Kiyoko snickering at the word 'cockpit' to her delight, much to Emily's annoyance.
"...Anyway, these areas are in different locations than other mechs, so if you find yourself going into... an odd area, don't be alerted at all! Here's your files and I'll be off to see if I can get more compatible pilots. With you here, you'll be enhancing these girls and Humanity itself will be saved from these beasts, once and for all!" The doctor leaves Jordan alone with the rest of the mechs after handing him the files and the giant robots look at the tiny human with various expressions.
"So who's first?" Jordan asks.