SO THIS VERSION OF KUUGA ISN'T THE SAME AS KUUGA ORIGINAL SERIES OR IN DECADE UNIVERSE, IT'S ENTIARY DIFFRENT UNIVERSE, Kuuga his name Is Yusuke only Yusuke, not Godai Yusuke.

I happening to have this idea during watching Fate /Stay Night series, Sorry if my idea any fanfic reader upset for bad writing, bad description or inaccurate lore, please suggest and give feedback about it!!

It's normal day at abandoned warehouse devoid of people, the silence is only broken by the cawing of crows, creating an atmosphere reminiscent of a graveyard.

Two elementary school kids are cautiously hiding in the bushes observed in front of the warehouse.

Kid 1 turns around: "I heard that Gurongi are supposed to be here, right?"

Kid 2: "Yeah, but I still want to see it for myself before telling senpai!!"

Both kids fix their gaze on the desolate warehouse with intense anticipation. Amid the stillness, only the strong wind passing by creates an eerie sense of unease.

Caww! Caww! A monster half-human, half-lizard rushes towards the pile of garbage beside the warehouse in a hurry.

Warrior Monster: "What's going on? I thought you were playing a game! Or are you giving up already?!"

The Lizard Monster nervously approaches the Warrior Monster.

Lizard Monster: "No!! we were attacked!! The Judgment is dead!!"

The Warrior Monster looks shocked in statement.

Warrior Monster: "Kuuga did it?!"

Meanwhile, the two kids, eavesdropping intently, start to gather some information...

Kew! Kew!

Both Kids: "Oh no!"

A long-haired monster leaps from behind and grabs the two kids, dragging them in front of the two other Gurongi monsters.

Warrior Monster: "Rinto!"

The armored monster uses its powerful arms to lift the kids up.

Lizard Monster: "Kill them!"

Both Kids: "please, No!"

The kids cry out in fear, helpless in this situation...

Vroom! Vroom! Suddenly, a man on a motorcycle speeds in, hitting the monster and sending it flying. He manages to catch the kids just in time.

Kids 1 2: "Senpai Yusuke!"

The kids' faces light up with joy at the arrival of this man.

Shortly after, the high school boy dismounts his motorcycle and looks back at the kids.

Yusuke: "Watch my back, okay?"

The kids smile broadly.

Henshin!!!

The young man starts to transform!

Suddenly, his body is covered in red and black armor, turning into the Flame Warrior, Kuga!

The three monsters exclaim in fear: "K...K...Kuuga!!!"

Without hesitation, Kuuga rushes in and punches the Lizard Monster to the ground, exchanging blows with the Warrior Monster simultaneously.

Warrior Monster: "Aaargh!!!" The Warrior Monster is sent flying several hundred meters, crashing into the warehouse wall, blood filling its mouth.

Kuuga then lifts the Lizard Monster and slams it onto his knee, breaking its spine in two send it immobile.

Bang!

The long-haired monster pulls a whip from its hair and lashes at Kuga, but he evades in time.

Change!!!

Kuga's form changes to blue. He picks up a fallen metal rod, transforming it into a long blue staff.

He dodges the whip and rushes in, striking the monster relentlessly until it loses its balance and falls. Kuga doesn't stop, smashing its belt, causing it to explode and disintegrate.

Warrior Monster: "Kuuga! Die!"

The Warrior Monster, having barely gotten up, pulls a blood-stained sword from its back.

Warrior Monster: "Come at me!"

Kuga stands still but suddenly he steps back, preparing to jump.

In a flash, he reverts to his red form, flames blazing on his foot.

Kuuga: "Yaaahhhh!!!!"

Kuuga runs at the monster, somersaults 360, and Rider Kicks at the monster, sending it flying.

Warrior Monster: "Aaaaargh!"

Boom!!! The monster explodes mid-air, and when Kuuga lands, he reverts to Yusuke.

Yusuke: "Great job, you two."

The kids smile back at Yusuke.

Time passes, and Yusuke receives a call from his brother.

At the police station, Yusuke meets his brother Ichiijo Godai, a police officer.

Ichiijo: "Yusuke? You finally came..."

Yusuke: "What's up, bro?"

Ichiijo hands Yusuke a picture showing the corpses of Gurongi with long slash marks and stab wounds.

Ichiijo: "Unknown creatures, presumably Gurongi, were found dead in an abandoned alley. Did you do this, Yusuke?"

Yusuke looks at the picture, confused.

Yusuke: "I didn't do it..."

Ichiijo: "Are you sure? I know you want to eliminate them, so you might have acted ruthlessly and killed them brutally. Don't worry, I just want to know-"

Yusuke: "I didn't do it."

Yusuke's serious tone and firm voice convince Ichiijo immediately.

Ichiijo: "Alright then..."

He sighs.

Ichijo: "if you confirm...Who did it then?"

...

In the next morning, Yusuke heads to school.

Yuta: "You're late, warrior boy!"

Yuta, a friend of Yusuke since middle school, is the first to know Yusuke can transform.

Yusuke: "Yo..."

Yuta: "I heard from the kids yesterday that you defeated another monster! So cool!!!"

Yusuke slams his locker shut, turning to Yuta with a blank face.

Yusuke: "It's not cool... I want them all gone. No, all evil people, too."

Yuta: "O...okay."

Suddenly, Yusuke and Yuta notice a girl with long black hair, a beautiful face, and a model-like figure entering the school. Her name is Mari, and she's the girl Yusuke has had a crush on since middle school.

Yuta: "That's the girl you like, right?"

Yusuke: "Yeah... but she already has a boyfriend."

Yuta: "Oh..."

...

That night, Yusuke rides his motorcycle through the dimly lit streets of a Tokyo district as usual.

A woman's voice: "Help! Help!"

Yusuke spots a woman about to be harassed by an old man. Without hesitation, he rams his motorcycle into the man, sending him flying dissapear instantly.

When Yusuke turns back, the woman faints in shock.

Yusuke: "No thank you, huh?"

He notices something that makes him widen his eyes and hold his breath.

Yusuke finds two dead Gurongi monsters on the ground, brutally slashed and stabbed like in his brother's picture.

Yusuke quickly parks his bike and examines the bodies.

Yusuke: "What does this mean?"

Hissss...

At that moment, a terrifying cry echoes from the alley, unmistakably a Gurongi call, beckoning him to investigate.

With a sense of dread but driven by curiosity, Yusuke rushes towards the source.

Henshin!

Yusuke transforms into Kuuga and finds a Gurongi lying dead, cut in half, at the end of the alley.

???: "Hey, hey!"

He sees a mysterious blue-haired man in a blue outfit holding a long red spear, sitting on a wall ledge with dead Gurongi scattered around.

???: "Another one shows up! You guys never quit!!"

Kuuga: "Huh?! What's this?!"

Before Kuuga can react, the man lunges with the spear. Kuga barely dodges by jumping back.

Kuga thinks ( human? He's not a Gurongi. And he killed all of them??? Who is this guy?)

???: "Tch! Not attacking, huh? Then I'll come to you!"

The man leaps at Kuuga with incredible speed, swinging the spear multiple times, sending Kuga crashing through a wall into a building.

Kuuga: "So strong!!!"

Kuuga crashes into the building counter, battered, and reverts to his Growing Form (white form) before returning to Yusuke.

Yusuke: "Ouch, who the heck is that guy?"

Regaining his composure, Yusuke steps out of the building but finds the man gone.

Yusuke: "Gone? So fast!"

Moreover when he Looking around, he notices the area has changed completely.

The Gurongi bodies are gone.

His motorcycle is also missing.

The alley has turned into a street!

Realizing he's not where he was.

Yusuke: "What the hell... is this?!"