(2 days later)
"So Midoriya, you want me to teach you about your quirk so that you can get powerful quickly, yes?" I asked while looking at Midoriya with a serious face.
"Yes Gojo, I want to know how to control my quirk." He looked at me with a face I can't describe.
"*sigh* Isn't it a bit suspicious that I know how to train your quirk?"
"Ummm, I guess but you have shown me that you want to be a hero so I trust you." I saw his serious expression which surprised me a little.
"Alright, I'll train you."
He looked pretty happy with my agreement.
(3 hours later)
"*Huff huff huff*"
We've been training for 2 and a half hours. He has shown good progress with the muscle training and I advised him to spread out the power of his quirk so that he can move faster and have more powerful punches. Right now his maximum [Full Cowling] is at 7%. I told him to rise 1% each minute when training [Full Cowling], his progress is great and I can expect good from him.
"Can we take a break?" Midoriya asked with an expression of tiredness.
"We can take a 10 minute break, here." I tossed him a sports drink so he can get his minerals and vitamins to increase the fatigue recovery speed. I also took out a small lunch box so that his stomach wont get empty any time soon.
"[Full Cowling: 7%]"
'Wait he already started training? But it hasn't even been 5 minutes!'
"[Cowling:9%]"
'Who who whoa! Wait just a minute there Midoriya.' I look at him dumbfounded while he gets into position and increases his percentage by 2.
"Midoriya, do you want to have broken bones or something?" I asked looking at hime with a serious face.
"N-n-no, but I want to become powerful for the entance exam at U.A."
"I see, very well then. Continue training until you can't."
And like that 6 months pass by and his [Full Cowling] has increased to 35%, All Might thanked me for training Midoriya and asked me what hero school I will be going to.
"U.A is my preference, I have a powerful quirk that can destroy and save, I'll use my teleportation for saving and my orbs for destruction. I am working on a new technique that lets me heal but it hasn't worked."
"That is a good choice Young Gojo, I am sure that you will become a powerful hero in the future."
==============================
I havent really chosen anyone who will become the girlfriend of Juzu so give me ideas and I'll see which one I choose.