This is and AU where UA is a insane asylum and metal Hospital for teens. They put people into rooms (Kinda like the cannon dorms) in pairs. Izuku and Katsuki were put in a room together because when they got there they wouldn't let go of eachother and Katsuki got voilent with the guards so that they could stay together. So in the end they had to put the two in a room together, much to the two's happiness

Izuku is getting ready to sing to Katsuki to calm him down so that he doesn't have a panic attack. He's singing a song called; 'Alice of Human Sacrifice'. Songs like this -Crazy, Vocaloid, stuff like that- seemed to calm him down.

Izuku took Katsuki's head and laid it on his own lap and made Katsuki look him in the eyes

Izuku: "Kacchan, I'm going to sing you a story and I want you to listen and calm down. Can you do that for me?"

Katsuki just nodded with a crazed and anxious look on his face

Izuku: "Good"

He then began singing;

(Psycho: "You can skip the first part where they're just talking if you want. You choose)

Izuku: "The First Alice walked into the woods of wonderland~

Bravely with a fearsome sword,

held tightly at her hand.

Slicing down whatever led in her unyielding path.

Leaving chaos in her wake by a red bloody path."

The loud noises from outside their room quieted down a bit. The others from 1A could hear him sing and it seemed to calm them down too. The only reason that they could hear him was that one of the adults who took care of them had left the door open a bit. But they knew better than to try to get out. If they were caught they could be hurt by the guards who don't care for them that are always being really rough with them.

Izuku: "Then Alice stayed too far,

lost within the woods,

Giving in to all her sins,

Locking her away for good.

Much like the gruesome path that marked her every way

Still, her life remains a mystery till this very day!"

Now everything was completely silent. The whole building was listening to Izuku Singing, calming everyone of them down. All of class 1A, 1B, and others. All of them. And the adults? they were slowly, -without their knowledge- turning a little bit insane.

Izuku: "Second Alice was a tame and tender gentleman,

Singing song to all the folks,

who lived in Wonderland

Every day he'd sing away,

to all the Girls and Boys.

One by one he's spreading Evil

slowly with his voice.

Whenever he would sing,

People gathered around

Madness took a hold of him

Shot him dead to the ground.

Blood stained the roses,

to a dark and somber red

Once loved and enjoyed by all,

the man was left for dead"

People were now slowly moving over to the big common room where they were sitting. Hitoshi, Shouto, Kirishima, Ochaco, and Mina already being there.

Izuku: "The third Alice was a lovely Girl from Wonderland

Beautiful the girl was born,

for a life so grand.

She tired all the people,

to her every beck and call

Then she birthed the kingdom that would rise above them all.

This Alice was then crowned

turned into a Queen.

Ruling all the people here,

Lost within a crazy dream.

So afraid of death

the girl was mindless and warped

Once a gorgeous ruler,

Now she's just an ugly corpse"

Everyone was swaying to the song and calming down. Some people even fell asleep.

Izuku: "Find the bright forest path,

that's where the journey starts."

Katsuki wanted to join Izuku and began singing

Katsuki: "A Tea Party with blue roses,

That's where the forest parts.

Izuku: "The invite from the Queen,

It actually was;

Katsuki: "The Trump Card.

Both: "The Ace of Hearts!"

Both: "The Fourth Alice was a pair of siblings who were twins.

Straying into wonderland,

is where their tail begins.

Wandering across the world

they passed through many doors.

Curious of this new place,

they traveled and explored

Izuku: "The stubborn older sister"

Katsuki: "The clever Younger brother"

Izuku: "Were close to see-"

Both: "The True Alice at Hand

They both began giggling crazily

Both: "Both will never wake up from the dream that they had planned.

Forever they'll wonder hopelessly in wonderland!"

Katsuki then passed out on Izuku's Shoulder and Izuku laid his head on Katsuki's. Everyone else already fell asleep. The next day when the Adults couldn't find the kids, they began running around until they came to the common room where everyone was sleeping in either pair like Izuku and Katsuki who was cuddling or in groups like the rest of the Baku squad.