[First scene]
Y/n wakes up in a unfamiliar city that he never saw before.

Y/n: What is this place?

He hears screaming and looks down to see those dark creatures from Destiny Islands attacking people.

Y/n: Like hell that'll happen.

He jumps down to intercept the unknown beings.

[Second scene]
Barry Allen and his team were trying to discover what those things are. Next thing, the camera's show Y/n appearing and fighting the Heartless..

Cisco: Whoa. Whoever this guy is, he's is handing them down.

Barry sees more 15 more Heartless starting to appear..

Barry: Looks like hell need help. *dashes off*

[Next Scene]
As Y/n was swinging his Keyblade at the dark creatures, he somehow started to produce Lightning from all around his body. It traveled to his Keyblade as it then transformed  into a new variation of his weapon..

Y/n: Ok, that's new.

???: You're telling me.

Y/n sharply turned around and aimed his new Keyblade at whoever was behind him.

???: *hands up* Hey, hey. I mean no harm.

Y/n lowers his weapon before making it disappear..

Y/n: Who are you?

Flash: Call me the Flash.

[Final scene]
Y/n battles a hooded figure until he decides to leave.. but not before summoning dangerous Villians in this world from past, present and future.

's armor begins to change as he is now now donned in new gear with Purple Lightning coauthor all over his body..

Y/n: *looks at himself* Neat.

He places goggles on and stared at the five evil speedsters in front of him: Eobard Thawne, Zoom, Savitar and Godspeed.

*Like in my Konosuba story, Godspeed will have a concept art suit instead of the shitty one we see in the ArrowVerse Flash series.*

{For Eliza Harmon, the figure brings her back to life and managed to implant her with a natural connection to the SpeedForce.}

Y/n stood battle ready, alongside Barry, Wally, Jay Garrick and Jesse Quick.

G

arrick: I never thought Savitar would return.

Barry: *stares at Zoom with Malice*
Let alone zoom himself.

Trajectory glances at Jesse and scoffs..

Trajectory: I see that you are nothing but a copycat of myself.

Jesse: At least i make a better speedster than your fake ass.

This made her growl with Anger, hoping to kill this runt. Zoom then stares at Y/n with the Purple Lightning and feelsnthatbit isnstringer than The Flash's Speed.

Zoom:  ̶I̶ ̶S̶e̶n̶s̶e̶ ̶m̶o̶r̶e̶ ̶s̶p̶e̶e̶d̶ ̶i̶n̶s̶i̶d̶e̶ ̶y̶o̶u̶.̶ ̶Y̶o̶u̶'̶l̶l̶ ̶b̶e̶ ̶t̶h̶e̶ ̶f̶i̶r̶s̶t̶ ̶I̶'̶l̶l̶ ̶k̶i̶l̶l̶.̶.̶

Y/n: Ok, Zoom. You wanna get fast? *eyes sparkle with Lightning* Let's get fast!

The Speedster from both sides then charged at one another for a battle not to be forgotten..

[And that's where I'm leaving this]