He wanted to shake off Yoruichi and go on a rampage, to bring all for one back to life, and kill him with his own hands... as he began to hear terrifying ghostly screams from his boy's voice...
It was full of insanity and pain… Tumura began to go ballistic as he gazed upon All For Ones body, he went to him and Kurogiri followed him, gathering his body, they looked over one last time to the slowly rising Karna who should be dying, as they looked over, his wounds were closing at a visible rate, and the white liquid congealed from his mouth, began to take the form of a mask, with two horns, and two red stripes across it…
Noticing this…. He began to scream, sending out a massive shockwave of energy and wind, causing Tomura to raise his arms to cover his face, along with Kurogiri, who immediately shouted to Tomura… "its dangerous, we should get out of here!"
But before they could do anything… a massive black wave and crimson wave of flame was sent towards him and the army of Nomu, it was utterly all-consuming… as such, Kurogiri created a large portal in front of him… but Tomura didn't want to enter and simply shouted at him… "bring out the rest of the Nomu!"
"But, Tomura!"
"Do it!"
Instantly more and more Nomu numbering in the 10s reaching up to a grand total of 52 Nomus including the ones already on the battle field, it reached a grand total of 76 Nomu…
However the first wave didnt dio anything, multiple ranks were consumed by the wave of black and crimson flames…
Then he appeared, next to Kurogiri… with long cascading grey hair, wearing a wrecked gotei 13 captains uniform with captains haori, with a large mask on his face, with two large horns, and two pale red stripes… (exactly like the appearance of a certain someone when he became a momentary espada but with changes)
He held Ryujin Jakka in his hand… he grabbed onto Kurogiri fiercely with such speed he wasn't able to react… and sliced down at his throat… but a black portal appeared just in time to save his… in return he was flustered and a nearby Nomu died because of it...
*ROAR!* Karna roared sending a massive wave of energy and wind knocking them off their feet...
And than he began his slaughter of the Nomus... with one massive slash, a massive black wave of crimson tinged flames bore through the ranks of the Nomu one after the other turning them into nothingness... the mere touch burned away their existence, with such ease, it horrific.
Tomura and Kurogiri quickly gathered their masters body and left via teleportation.
...
Tears were falling as immense destruction was sent in every direction... as the villains forces were being dealt, in one swift slash of his sons sword, burning away the villains existance, as if they were never there in the first place, just massive slash marks and a crator to leave left behind to show they ever existed to boot...
As such... his son who had fallen, was crying, while yoruichi seemed to be perfectly fine in hind sight, but she felt, and believed that he will return to her... as she didnt she any more tears than neccessary..
she held it in... and decided to take it on him sexually later.
when the villains were dealt with such speed, and power that it sent shivers down his spine...
when finally there was nobody else on the battle field to slay, he stopped, and all time seemed to stop with it... than the masks began to crack, and than fell off to the ground, only to disipate before it hit it...
heroes arrived to the scene, while all might squirmed like caterpillar.... as his son fell to the floor...
"i need to see him, let me go, let me go, yoruichi!"
she smiled at him, it was a charming smile, witch made him stunned... a tear began to fall as she flash stepped to where Karna was... standing over him, all might took him in his arms, and checked his heart beat...
'it was there! hes alive!'
tears, guilt and self hatred for being so weak filled him up... while mid night and the other heroes arrived, surrounding the boy that caused so much destruction... Nezu even arrived, and did a quick check up on him...
"heill be fine, All Might, now the police are going to arrive soon, and must be told what happened..."
he looked towards yoruichi and all might... "i trust you two are capable as of this moment to report to the police? weill take care of the-"
"no... im not letting him out of my sight." so he says, resolutely, as he began to hug his child, holding his head carefully, as he led him into his embrace...
"i almost lost the one thing that connects me to this world, more than the symbol of peace, but a father, my son, who im so proud of, who placed his life on the line, to protect the his fellow teachers, his fellow students, while ive doubting him all this time! do you know how that makes me feel? ive failed as a father, ive failed kiyo i-"
this was when yoruichis hand fell on his shoulder, having even more tears stream down his face...
"im sorry, i lost myself for a moment..." not knowing what to do, he placed a smile on his face, as if it was the only thing he knew how to do.