Wrong Move...

Japan

...

Power.

Midoriya felt a surge of power rush through his body.

A grin struck his face, mirio had really transferred the power.

"The average human would die, not able to handle too many quirks.
But.
I'm immortal and have a regenerative ability.

If mirio's plan was to kill me with the power then he lost."
Midoriya activated his quirk, electricity danced around him. It was so much more intense, Midoriya could feel it.

He wasn't the same as before.

"I have a pretty good grasp of it, not as difficult as I thought it would be"
He thought to himself.
His eyes landed on a cup in the room , it suddenly exploded.
Electricity could be seen dancing around it, once he deactivated his quirk the electricity stopped.

"I'm no longer limited to just living things, ha!"

He walked down the stairs and met up with Mirio once more.
Mirio was counting the tiles on the floor.

"Back already?" Mirio asked.

"No I'm a ghost.
Stupid.

Anyways-
The transfer of power is complete."

"So you can finally release me?" Mirio smiled.

Midoriya nodded his head, "mhm."

Mirio watched the chains explode off of him, his eyes slightly widened.
"Has he already mastered control??  That shouldn't be possible???
I still have a fighting chance
...
I hope..."

"You look surprised.
Didn't expect me to be able to control it so well huh?
I bet you also didn't expect my body to be able to handle it.

So mirio.

I'll let you in on a little secret" Midoriya paused as he stared at mirio right at his beady blue eyes.

Mirio began to nervously sweat, he physically couldn't move...
His chains were lifted

....

But he was paralyzed with fear.

"My body was made to be able to handle  power.
I'm immortal.

And

I have a regenerative ability.

One for all won't kill me like you had anticipated."
Midoriya psychotically grinned.

"Wha-"

"Goodbye mirio.
Here's your release"
Midoriya snapped his fingers.

"WAI-"

Zap

Mirio fell lip, his body at least...
He was dead.

Midoriya sighed, "I wonder what his plan originally was.
Kinda stupid of him to just give me this power off the bat.
Whatever."
He lifted up the body and called for kurogiri to warp it away somewhere the heroes would find it.

"Now the UA hostages.
I need to steal blood from them but I can't let them know that.
They're conscience.

I need to knock them out"

Midoriya went into the storage closet and grabbed some sleeping gas.
He threw it into their rooms and waited a couple minutes.

Once they were all knocked out, he walked in and stole a good amount of their blood.