Izuku the legendary (discontinued)

Errands

Izuku was sat in the office of UA, per Momo's demand he had to go and officially get his hero license and do other things he missed whilst dead
"Ah, izuku. Its great to see you again" came the coice of nezu behind him, he turned to see his out stretched paw and shook it
"Its great to so you as well principal nezu" the saiyan said slightly huting his paw in the hand shake
"Ouch, well you've gotten very strong haven't you? I still remember when you were but a baby" the bear said remembering the past "now i know why your here, you need your license don't you?" The bear said to the younger of them
"That's right. I cant be earths protector if im not allowed can i HEHE" the saiyan replied scratching the back of his head
"Yes well thats rather easy to do, nobody has forgotten about what you did during the cell games, ill gladly make you a pro hero in return for your protection of earth" the bear struck the deal with his paw outstretched once more
"Its a deal nezu" Izuku replied once again shaking his paw " now i must go, things to do you see"
"Wait, you haven't met your little brother yet have you?" The bear asked him
"No, i was going to go to gran torino's place and see him, he should be the same age as my kids right?" Izuku said in return
"Yes you are right, well have fun, you'll be surprised with his potential" the bear chuckled as they both left, Izuku flew over to gran torinos place as to not give either of them a panic attack, he landed and sensed the familiar ki of one of his old masters and also a very powerful ki for a human that could be unlocked. He walked in surprising the two
"Hey im back master" Izuku said happily as the old man gave him a warm hug
"Izuku my boy, i thought you were dead" the old man exclaimed with a hearty laugh
"Well... I was haha" the saiyan chuckled and told him what happened before turning to his brother " so your my brother huh? I can sense great potential with you" he said to the small child
"Huh? Brother? Are you big brother Izuku?" The small child asked in a cute voice
"I am, little Rin" came his short response, the child ran and hugged him just his name hes not satan spawn
"Mama and papa told me so many stories about you, like how your not from earth and how your even stronger than papa" the child exclaimed giddily at him
"Haha is that so? Now tell me, you got the same quirk as father didn't you?" He asked the boy on his shoulder
"Yep and even though im only nearly 5 its super strong, like you. Although it hurts to use it in my arms" the boy told his brother as Izuku had a gentle smile
"Well, have you tride using it throughout your whole body?" He asked as the child's face lit up and he tried it, yellow lightning coming off him " see that, now your all strong, that works just like ki, use it through your body and you become so strong" the child ran off giddy as he bounced around the walls. Izuku looked at him and focused on his ki, he had a power level of 5,000 with it active and this was only like 1%
"He'll become the strongest human with a power like that" Izuku told his master
"I know, and with his will and determination just like yours, he'll exceed everyones expectations" his master replied to him
"However, it wont be enough to stand up to someone like cell or frieza. Fuck it ill teach them it" he said in a mutter
"Teach who what?" His master asked confused
"Its a technique called fusion, it takes two people to do a special dance and they become one, the power that being has is incredible, the people i learnt it from are some of the most powerful in the universe, they averaged a power level of about 5 million, and they were all much weaker than him in their normal state" Izuku explained
"But who with, could he do it?" The old man asked
"Gohan. His power level is about 50,000 if he knew how to fight properly whilst angry, but without training and his anger he's the exact same as Rin, if they train together, they'll both far exceed my expectations" he looked on in thought
"If they fused now?"his master asked once again
"They'll be more powerful than father in his prime" the old man was shocked, this technique was that powerful, Izuku looked to the clock on the wall "its 3:30 you mind if i take him out for a bit?" He asked his master
"He's supposed to go home today any way, just make sure you let inko know, or no matter how strong you are, she'll kill you" he warned his student
"Okay okay cya old man" he said as he picked up Rin and left
"GOODBYE GRANDPA!" Rin shouted to him
"Cya later brats" the retired hero said closing the door
The two went out for something to eat before Izuku took him home
"Goodbye zuku" the child said running upstairs, Izuku turned to inko and sat down
"He wants to be a hero, just like you did" she said as they looked after him
"Hmm, i see his potential. He could be the strongest human if i were to train him" she looked at him
"What do you mean, izuku he's not a saiyan he couldn't train like you" she looked at her son
"I know, but he and Gohan share a passion to become heroes, if i train them i could make their wish come true" the woman just sighed
"Do you really see that much potential?" She asked her adopted son
"There's probably even more" he replied simply
"Ok do it" he looked at her " you can take him into the hyperbolic time chamber and train him and Gohan, only if i know you'll keep them safe for the year" she said with her demands
"Ill take them for one day, one year in there a day here, theres something happening soon, and i need to be able to stop it" he looked at his mother
"Is that why you want to train them? Your scared that you wont be able to win and we wont be able to wish you back?" She asked her son
"Yes and no, it would be good to have the extra back up but, they have ambition, i wont let them waste it by not doing anything. I think ill wish my brother back soon, with a pure heart of course" he said standing up "ive got to get back to Momo, ill take the kids tomorrow, first thing in the morning" he said to her
"Ok Izuku, i trust you" she said hugging her son as he hugged back
"I wont let you down" and with that he left, inko told Rin the plan and he was ex static, izuku told Gohan and he was the same. And so with a nights sleep they woke up and izuku took, bakugou, Todoroki,Gohan, Rin and Eri into the hyperbolic time chamber and trained them all, one day later at the exact same time they came out, all extremely powerful
Power levels
Izuku-120,000,000,000,000
Bakugou-900,000,000,000
Todoroki-670,000,000,000
Gohan-50,000
Rin-50,000 (with quirk)
Eri-20,000 (mainly focused on quirk)
All might-156,000
Kirishima-90,000
Mina-5,000 (acid strength)
Momo-16,000 (quirk)
Uraraka-16,000 (quirk)
Mina,15,000 (quirk)