It was hell training he swear if he wasn't already dead he would be now, he went threw test torture and everything, satan or should he say pops wanted him to feel no pain.
So in order to do that he had to go threw pain until he got used to the feeling, he also wanted him to be able not to die by any sort of poison.
So he went threw more torture after all that torture it was time to learn how to fight, he practiced with shi and she always won every fight.
Until he was able to land 20 hits on her he couldn't move on, so he would get thrown stabbed and other things until he won.
And when he finally got those 20 he had to get one hit on his pops which was the hardest thing ever to do, you think since the old man was like 20000000 years old he would be slow but no.
And to make it even worse his father wasn't even using half of his power I think he was only using like 20, izuku sat on the ground in no type of pain but just tired.
He felt blood run threw his hair but he could care less, since he didn't have any powers he didn't heal very fast, his father just sat and watched him.
"Get your ass up" he groaned before getting up and going back to fighting his father, he felt something and he immediately stopped fighting.
"Did I touch you?" "Yes" Izuku yelled and hugged him he was so happy right now, he actually hit him finally after like a year of training he did it.
He wasn't some weak deku he went by satsujin now meaning manslaughter, shi came up and hugged him, they had a good bond like brother and sister, "finally you won against the old man I'm proud of you satsu"
"With that are training comes to a end we have to go transfer my power come on" with that he gave one last hug to shi and they left.
"I will tell you this no pain tolerance that we built up will make this not hurt it will feel like you are being ripped apart a hundred times" he just nodded kinda worried.
"For this you will need to drink my blood" Izumi just stared at him like he was slow, "I'm serious" he sighed and just downed his fathers blood, it tasted like shit.
And suddenly pain shot threw him, it hurt so bad he screamed in pain as he curled up in a ball, he felt his head splitting open up top and blood drip down his head.
He felt everything start to spin "fuck!" He jolted up and he was meet with a all black room and shi standing over him, "get up the old man wants you and he said we need to train with your new powers"
With that the other 10 months were spent with izuku training
With the humans
Inko was so depressed her son death was slowly eating her up she didn't know what to do, and she cut off mitsuki because of her stupid thing of a son.
She tried talking to the detective and even he was mad saying it wasn't right and wasn't fair, even some underground hero said he was disgusted with the hero commission.
But they couldn't do anything about it the hero commission was to powerful
Back with izuku
He sat on the ground no shirt on as his new cuts finally healed, "get up satsu" he sighed getting up and going back to sparing with shi, "that's enough I think izuku is ready I mean his power rank is now higher than yours and your the top demon"
"So I can take my revenge now?" "Yes" they said their goodbyes and with that they went to earth, "can we stop somewhere real quick you can wait outside" "yeah"
