As Izuku dashed for the monster.
But as he did it slammed it's hands down and sent multiple massive spikes at him.
Izuku didn't even try to avoid them.
Two of them grazed him drawing blood from his leg and side, the third missed him entirely, and the fourth severed his left arm.
'It doesn't matter.'
Tendrils of muscle erupted from the bloody stump of his arm.
'I can heal from anything this bastard does!'
The tendrils twisted around and formed into a new arm.
Green and purple lightning spiraled around his arm as he pulled it back.
And slammed it down into the ruined earth. Cracking it and making the monster lose it's balance.
It stumbled and Izuku took this as a chance.
His quirks flowed through his body.
"Forced quirk activation!"
Five black tendrils shot forward and pierced the monster'ssecond right arm.
"Electric touch!"
Electricity flowed through the long black tendrils and into the monster making it jolt.
Before it grabbed the tendrils and disassembled them.
Izuku deactivated the quirk. Gritting his teeth at his ruined fingers before they were remade by his healing quirk.
The monsterdashed at him swiping at the kleptomaniac with it's four hands.
It nearly hit him. Until the raven haired hero blinked and disappeared.
And reappeared beside the monster.
He slammed his fist into it's side. The attack was enhanced by the muscle fibers that had wrapped around the boy's arm.
The creature that had once been Chisaki coughed blood as the attack made one of it's ribs pierce it's lung.
It tried to hit Izuku with it's first left hand. Only to miss as the boy once again disappeared and reappeared above him.
Izuku came down with a downward kick enhanced by the green and purple lightning that spiraled around the limb.
An audible crack sounded as his foot connected with the creature's back.
Crying out in pain the monster tried to grab at the boy.
Only for him to once again disappear.
But when he did reappear he doubled over in pain.
"Damnit this quirk's drawbacks suck!"
The kleptomaniac clutched his stomach looking slightly green.
And the monstrosity used this as an opening for attack.
It dashed at him and tried to once again kill him.
But was blasted back by a blast of pure energy.
"Concussive blast."
He choked out through gritted teeth.
The creature was slammed back into a spire of transformed rock.
"Eri!"
A distorted voice roared in rage from the hand in the creature's second left arm.
"Because of you I had to die again! Is this what you wanted?!"
That primal beat that roared in Izuku's head had nearly blocked out the words that answered the distorted voice.
"That's... not what I wanted!"
Izuku turned his green eyes shaking with shock as he looked back at the small girl.
'No! She shouldn't be back here!'
The raven haired boy shakily turned to her.
"S-stay away!"
"My Pet."
The cold warped voice of the monsterspoke to the girl.
"Do you think this boy can ever separate me from you? That he can ever overcome this situation on his own?"
The little girl's fearful red eyes glanced at Izuku.
"...no."
Was her fearful answer.
"In that case."
The distorted voice spoke from the mouth in the creature's second left hand.
"What is it you should do?"
Izuku trembled with rage as the drumbeat filled his skull. He could just barely hear her over it's overwhelming noise.
"Come back... and in exchange you need to fix everyone!"
The distorted voice of the monster spoke. But Izuku didn't hear any of it's words as the drumbeat tore through his skull. Hammering his brain with a whispering voice.
'Allow me to take control."
It sounded as if hundreds of voices were speaking as one.
And his own was at the center.
'And I will make him pay. I will make them all pay!'
Izuku smacked the side of his head with a open palm.
He stood to his full height. Whispering to himself as he did.
"In control... stay in control."
The kleptomaniac glared at the monster.
"You will not take her."
He spoke his voice barely above a whisper. And yet he could tell that both the monstrosity and Eri heard every word.
"Because I am here."
Emerald eyes blazing with righteous fury.
After he said that the roof of the room gave a immense shudder.
And broke apart as the Ryukyu team and the villain they had been fighting crashed through it.
Rubble fell around them as the massive dragon form of Ryukyu yelled out.
"RIGHT ON TARGET!"
A well dressed one armed man fell after them.
"Wha' the league of villains too!?"
The dragon hero cried out as the man fell into the underground area.
Izuku looked at his classmate.
"Uravity! Look after Nighteye!"
The ravenette (A/N I got tired of typing out raven haired some I using this now) dashed to the little girl.
Only for a massive spire of stone to erupt from the earth as the monster once again attacked.
A offshoot of the spire cut the ravenette's arm.
Blood shortly spurted from the wound before the muscles and skin were knitted back together by his healing quirk.
A animalistic roar of rage tore from Izuku's throat as the former human grabbed the young girl and kept making the spire rise to the hole the heroes had crashed through.
"I won't let you!"
He roared as wings erupted from his back. Muscle fibers wrapped around the new limbs.
Izuku flapped the wings creating great gusts of wind that cracked and sent large rocks into the air as the ravenette quickly rose into the air.
Once such rock was wrapped in a torn fabric.
Eri spotted it and grabbed it. Not seeming to truly know what she was doing.
Light exploded from her cracked horn as tears welled in her eyes.
Her small scarred hand touched the monstrous arm of the former human.
And with her touch the inhuman fusion was reduced to it's natural halves.
Both the halves of the fusion fell to the earth as did the girl.
Izuku out stretched his arms. Catching the girl and pulling her into a tight embrace.