We Open to see (Y/n) at his original Age Standing at a stage and Singing as he slowly becomes older.

Hiroi aoi kono basho de
Tokiga nagarete yuku
My precious time

After the song said "My precious Time",We are given a Title Card showing the Fic's name of "Big".

Itsu no manika kiete shimatte kakegaeno koega
Tsumaranai hibimo sorega sukide ikitetanda

We transition to (Y/n) and his older Classmates Looking bored In class as well as Relaxing in their Dorm with Our Toddler Teen Smiling At the 4th Wall before Becoming Confused.

At tetanda,His Face suddenly split showing One half being Normal and the other Being Covered By darkness.

Higa sashiteru tokomade omoikkiri hashitte
Shinjirarenai koto bakari menomaeni okiru

It transition to show (Y/n) Hanging out with All of his Classmates and Doing all Child Like things with his teachers Groaning at them.

[Pre-Chorus]

Taiyou no hou wo miagete tachiagaruno tsurakete
Susume koto dake omouto

A Small Figure is Seen but no one Could Tell who it is as Everyone tried to Reach out for them and As it Rapidly changed from person to Person,Once it Reached Our Toddler Teen....

[Chorus]

Setsunai tabiwo tsuzukeru kawatta me no okuniwa

Issei was in His Balance Breaker Battling Vali as Bikou tried to Attack him from Behind but Koneko did him a Favor and stopped the Attack as Her Eyes Darkened with A Smirk.

She Grabbed him and Sent her Own attack.

Natsukashii itoshisa wo motomete (On my way)

It Changed to Izuku and Akko Having A good time Before Showing Battling Someone with Izuku Bleeding out.

Kizutsuke attanowa nikui wake janai nosa

It Rapidly Showed Allies And Enemies Before it Changes To (Y/n) On The Ground in His Original Body With Somebody Reaching Their Hand out to him as he looks up and sees Yagyu.

Bokuno subete wo Giseini torimodosunda Bokura no my precious time

He smiles and Grabs her hand as He Becomes our Toddler teen,We all know and love as The song ends with The Entire School Standing and Smiling at The Fourth wall.
__________________________________________________________________________________

It was a normal day at Kurosu as the students Walk through the halls to get to class,Some goofing off,Others on free time,Others heading to the Cafeteria.

Everything was Normal.....Until,It wasn't.

An Explosion Occured as Everyone Ran outside To see what Occured And saw....This.

Mercury:We're Villains,Bitches!

The "Transfer Students" that consisted of Cinder,emerald and Mercury had Blown up a Giant Bomb and If That wasn't Bad enough,Armies of Grimm as Well as The L.O.V had Arrived and even more Of Kurosu Academy's Enemies.

The Villains basically had The Students And Teachers Outnumbered By.....A Billion.

Random Student:

(If it's Blocked,Press the watch on youtube button!....Only IF You haven't seen it Or you Really Wanna hear it)

Shigaraki stepped foward and said that whoever had just spoke those words was right.

Shigaraki:You guys Are Indeed Fucked!

??:No.

Shigaraki:Hm?

He turned and Saw Everyone's Favorite Toddler Teen Glaring At him as He pointed at him and said...

(Y/n):We're Not That!You're Like a Shadow from the Shadow Line!And I Will Defeat you......With My Imagination!

The Villians Deadpan him and think one thing simultaneously.

Villains:'Is he For Real?Or Just Fucking Retarded?'

Watts Scoffs And Says they don't Have For Children's Game and Pulled out a Gun as he Prepared to fire at him but.

Ruby:NO!

Watts got shot,Instead as he found himself glaring at The Team Leader Of RWBY.

Ruby,Asuka,Izuku and Naegi Joined Him as They Stood By him with Naegi saying..

Naegi:(Y/n),Even if what you're Doing is Insane!Let Us Help You,We'll fight with you.

Asuka,Ruby and Izuku Nod as (Y/n) Smiled but Before anything could happen.

??:And So Will I.

They Turn to see who said it and All but Our Toddler Teen is Surprised by it.

Ruby:Hey!You're In Class B,Right?Mickey!

"Mickey":It's Miles.

The Villians saw the teens and Just Laughed.

Villian:That's It!In Case You Forgot,We have An ARMY And You Only Have 6!

??:I Think You Believe Mean 7.

They all turn to see Makarov Walking Over to Them and Standing By them.

(Y/n) smiles as he Points to himself and his 6 companions.

(Y/n):We'll use Our Imagination And Stop You As Toqgers!

The Villains Weren't Intimated,In fact they laughed.

Villain(Sarcastic):Ooh,We're Sooo Scared!

They Became A Rainbow Colored theme Team.

With (Y/n) In Red.

Naegi In Blue.

Izuku In Green.

Asuka in Yellow.

Ruby In Pink.

The Guy Known as Miles in Orange.

And Makarov In Purple.

The Villains Immediately Panicked As Some Started To Run But They All Got their Asses Handed to them as The Core 5 Immediately Went for a Big attack.

(Y/n),Ruby,Izuku,Asuka,Makoto:Link Up,Bazooka!

They Had Gained the Rainbow Rush and Prepared to fire As (Y/n) said...

(Y/n):Rainbow Rush!Super Sentai Victory!

The Rainbow Rush Fired And Fueled with Imagination,The Villains Were Attacked By The Spirits of Every Super Sentai Team That Had Ever Walked The Earth,Canon AND Fanon!

The 7 turn away as the villains get caught in an explosion,While they Change back and The entire School Cheers For them and For Saving Everyone.