(Union City is in chaos, with buildings burning and people screaming in panic. group of self-proclaimed defenders of justice, had arrived to stop the threat, but they were no match for the enemy. The enemy was Ultraman Belial. The Union Heroes tried to fight him, but they were easily overpowered. He used abilities to blast, slash and crush his opponents. He laughed maniacally as he watched them fall one by one.)

Belial: Ha ha ha! You call yourselves heroes? You're nothing but pathetic worms! You can't even scratch me! You're not worthy of my time!

(He looked around and saw that there was only one Union Fake Hero left standing. It was Captain America, the leader of the group. He was holding his shield and his broken helmet, trying to catch his breath.)

Belial: Hey, you! The one with the star-spangled suit! You're the last one left! Do you have any last words before I finish you off?

C. America: (glares) You... you monster... you'll pay for what you've done... you'll never win... there's always hope... there's always someone who will stop you...

Belial: (smirks) Oh, really? And who would that be? Who can stop me? Who can challenge me? Who can defeat me?

(He raises his Giga Battlerizer and prepares to blast Captain America until someone comes in and shoots him. He turns to see Y/N in his Tallgeese Armor. Y/N aims his Dober Gun and fires a beam which Belial dodges.)

Belial: Who are you? What are you?

Y/N: I am Y/N Merquise. I am a pilot of the Tallgeese Armor. I am here to stop you.

Belial: Ha ha ha! An armored fighter? How interesting! You're different from these other fools! You have some guts! But you're still no match for me! You're still doomed!

(Belial shoots an energy bulley, but Y/N blocks it with his shield. He also used his thrusters to boost his speed and maneuverability. He used his beam saber to slash Belial. He fought with skill and courage, showing no fear or hesitation.) 

Y/N: You're wrong, Belial. I'm not doomed. I'm not alone. I have friends. I have family. I have allies. We all share the same goal: to protect this world from you. And we all share the same name: we are heroes.

(He charged at Belial with full speed, ready to strike him down. Belial saw him coming and smiled wickedly.)

Belial: Very well then.

(The two warriors collided in a fierce battle, exchanging blows, beams and words.They fought with all their might until Y/N prepares to finish him.)

Y/N: The Tallgeese will determine my fate!

(Y/N charges at Belial.)

Y/N: I won't miss!

(Y/N slashes Belial, and then stabs his core.)

Belial: It can't be...

(Belial then screams in pain as he explodes. Y/N then sees some Atlesian Soldiers coming in.)

Y/N: I guess this is the time I leave this place.

(Y/N flies away, as the Atlesian Soldiers go to help Captain America up.)

Atlas Soldier 1: Captain, are you alright? What happened?

C. America: (weakly) Someone... someone defeated Belial... and it's not one of us.

Atlas Soldier 2: A vigilante?

Atlas Soldier 3: We'd better let the General know about this.

(Timeskip)

(At Peacemillion, Y/N is seen placing his armor back in the capsule as he hears a voice.)

????: How was your first fight, son?

(Y/N turns to see his parents Zechs and Noin.)

Y/N: It was a little hard, but I managed to defeat Belial and avoid some Fakers' eye contact.)

Zechs: Good, we don't need some fuckers trying to persaude us into joining their corrupt cause.

(Then Zechs and Noin hug their son as the screen fades out.)