One night, Izuku is already in bed and sleeping, but he gets a very horrifying nightmare:

Izuku fighting All For One alongside with All Might.

"One For All: Full Cowl, SMAAAAAAAAASH!" Izuku yells as he launches a potential punch to All For One.

All For One easily dodges and punches Izuku.

"Ngh!" Izuku grumbles.

"Izuku!" All Might calls over and goes on full power to All For One in order to defend Izuku, his succesor.

The rest of the students of class 1-A fight with them.

Kaminari shocks, Kacchan blasts swearing, Ochako strikes back, Todoroki freezes and burns, Kirishima hardens and strikes on, Mineta uses his stick balls, Tsuyu fights with the use of her tongue, Ida speeds, punches and strikes back. Tokoyami uses Dark Shadow on the enemy.

All For One seems to dodge every single punch so easily and sumerges everyone but Izuku in a dark cloud which he strikes with his full power.

"ALL MIGHT! GUYS!" Izuku cries, trying to save them but a Nomu grabs him and squeezes him tightly.

"Say goodbye to your dear teacher and friends, Midoriya," All For One mocks.

"No, no, no! Please stop! ALL MIGHT!" Izuku screams and struggles to break free from the Nomu's strong arms.

All Might is all beat up at the floor, blood spilling from his mouth and bleeding from his head, nose, arms and a huge open wound in his chest.

"Izuku..." All Might sobs.

"ALL MIGHT!" Izuku bellows, tears in his eyes.

"Die," All For One kills All Might in front of Izuku.

"NOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOO!"

Izuku wails and falls down from his bed, he's heartbroken and scared, he runs off to find All Might, he screams. His classmates get out of their rooms.

"What is it, Midoriya?" Ida yawns.

"Deku you idiot! Shut up! Don't you see that I'm sleeping?! Kacchan roars.

"Midoriya?" Todoroki rubs his eyes and follows Izuku.

Izuku is too heartbroken to even listen, he runs to find All Might but ends up falling down face down, he breaks down, crying loudly.

"Midoriya," Todoroki kneels down and puts his hand to Izuku's back, trying to comfort him,

"A-A-All Might, y-y-you... Everyone of you DIED!" Izuku sobs, his tears streaming down his face.

"What is going? Midoriya?" Aizawa enters and sees Izuku in tears and Todoroki.

"He woke up screaming and running everywhere, he cries that All Might and all of us died," Todoroki explains, rubbing Izuku's back.

Aizawa crouches down and lifts Izuku's chin.

"Midoriya, look at me," He commands.

"Aizawa-sensei... A-All Might and everyone-" He sobs.

"No," Aizawa interrupts, "Everyone is here. You were having a nightmare. All is well."

Izuku keeps crying, Aizawa tries to calm him down.

"What is going on?" All Might comes from the door.

"Ah, All Might. I need your help here," Aizawa motions to Izuku.

All Might walks straight to the sobbing boy, sits down on the floor, and pulls Izuku to his chest.

"It's alright, Izuku..." All Might soothes, rubbing his back.

"A-All Might! I am so sorry! I couldn't save you!" Izuku sobs into All Might's chest.

"My boy, you have saved me before. This was just a nightmare, shhh..." All Might rocks them back and forth.

Izuku calms down a little and looks at All Might, tears still streaming down his face.

"You are very strong young Midoriya, very strong." All Might compliments, rubbing the kid's hair, gently.

"I thought you really died..." Izuku sobs, as All Might dabs away his tears and hugs him tightly.

"No now, I refuse to die in these moments. It's a promise, I won't die and I'll protect you." All Might says softly.

Izuku smiles and his head falls right in All Might's chest. All Might smiles softly and keeps Izuku close. Minutes pass over and Izuku is asleep once again in All Might's loving arms. All Might has fell asleep, his head resting on top of Izuku's head.

Aizawa looks on, this weird soft smile in his lips. He walks over and damps a blanket over the two sleeping teacher and student.

The End.