After getting his revenge on the league of villains he decided to train to get stronger when he makes it to class he is met with his 2 close friends

Denki:midoriya

Kirishima:we were waiting for ya that battle yesterday was really cool

Denki:yeah though warn us next time before you do that again

Izuku:yeah i know but anyways the next sports festival is coming up and well i was thinking want to come with me and train in a world of darkness

Kirishima:heck yeah

Denki:of course we do this time I'll get stronger too

Izuku:then after class I'll take you both there

As the three agree someone was listening closely to their conversation and they would spill it to the others

Mineta:'a place where they can get stronger the others would love to hear this'

After class izuku denki and kiri walk to an open area a certain few follow them

Iida:*whispers*what do you think this place could be

Bakugo:i don't fucking care as long as i can beat deku's ass with this training

Ojiro:if they can do it then surely we can

Denki:so where is this place

Izuku:give me a second

As izuku focuses his keyblade leaving a symbol under him

and a keyhole appears in the sky

And he aims his blade at the keyhole and fires a beam in it and opens a portal

Kirishima:so manly........

Denki:are we really going in there

Izuku:yep now follow me guys

As they walk in the group secretly following them gets near the portal

Iida:so this is the way in

Ochako:looks scary

Sero:eh we can enter and train there so let's go

Bakugo:SHUT UP

As they enter they're separated from the group of three they're met with creatures forming

Bakugo:oh yeah LET'S FLAME THESE BASTARDS

With the group of three

Izuku:welcome to the realm of darkness

Kirishima:wow this place looks So manly

Denki:yeah i never thought I'd see this

Izuku:well I'm glad you can know get ready enemies are here

As they're surrounded by heartless

Izuku:you ready to battle

Both:yeah

Izuku:then GO

as they fight the heartless

Kirishima:RED RIOT UNBREAKABLE RED BARRAGE

As he throws a bunch of blows destroying 20 heartless

Denki:GIGASTORM

As he fires a ball of lightning in the air that strikes 35 heartless while izuku is fighting a giant heartless and hits it over and over

Izuku:DARKSTROM

After a while of defeating enemies the group are walking back

Izuku:you guys did great

Denki:whheeey

Kirishima:think he's to tired

Izuku:yeah

When suddenly a scream is heard

Izuku:is someone else in here

Kirishima:no idea but let's go check it out

As they run towards it they see bakugo and iida knocked out and being held by ochako while mineta is crying for dear life and sero and ojiro are trying to beat a creature

Mineta:WAAAAAAHHH I'M TO YOUNG TO DIE

Sero:SHUT UP DUDE YOU'RE DISTRACTING US

Izuku:WHAT'RE YOU DOING HERE

As they look

Mineta:WE'RE SA-

As the tower knocks them back

Kirishima:what is that thing

Izuku:a demon tide the tough level ones get them out of here I'll hold this thing back

As izuku throws kirishima his keyblade

Kirishima:but don't you need this

Izuku:relax

Izuku:i have 2 more of them

Kirishima:then good luck

As the demon tide tries attacking kirishima izuku rushes in and slashes it in a flurry a slashes

Izuku:FOCUS ON ME

The tide slams him to the ground and tries to attack but izuku dodges and does an x slash on it

Izuku:MISSED ME

Izuku then slashes at it a bunch of times and it separates and throes izuku up in the air and hits him into the air again izuku then hits it with a combo

Izuku:DARK FIRAGA

As it moves away due to the attack izuku keeps it up

Izuku:MAGIC HOUR

As the creature disappears into the ground it appears near the group that nearly makes it out and when it nearly hits them it suddenly has been slashed in half and when those who weren't out looked they saw

Izuku:keep.........moving.....Now

Kirishima:y-yeah

As the demon tide reforms izuku then slashes it over and over

Izuku:heartless state 50%........

He fazes out if sight for a bit and appears behind it charging power into the blades while the tide gathers power itself and charges at izuku while he charges too and does an x slash right through it exiting through the portal letting it close

Izuku:ugh that was tiring

Kirishima:um midoribro look

As he looks at his keyblades they were broken clean in half

Izuku:oh no roxas is gonna be so mad at me.........

Kirishima:roxas?

Izuku:oh nobody important for now now then

As he looks at the group

Izuku:you're all idiots following into a world filled with heartless you guys could've died Stay out of things that you shouldn't be in otherwise you won't be lucky enough for my help

As he walks to his dorm room and sleeps he sees 2 people

Izuku:hi xion hi ro-

Roxas then summons his keyblades and rushes at izuku making him run

Roxas:HOW DARE YOU I GAVE YOU THOSE BLADES AND YOU BREAK THEM

Izuku:WAAAH I'M SORRY I'M SORRY

Xion:........haa and this is my boyfriend chasing after our successor

Xigbar:those 2 are close like the you axel and roxas so why not

Axel:though he did break them he should've had it memorized

Isa:they're fools

Roxas:RAAAAAH

Izuku:WAAAH

Xion:THAT'S ENOUGH CUT IT OUT RIGHT NOW

As she yells not only scaring roxas and izuku but the whole organization

Larxene:wow you guys did it know she's normally the quiet one but now she's mad

After they all calm down roxas tells izuku a way to fix and upgrade oathkeeper and oblivion and he spends his time hanging with the ones who dawned him a chance at heroism