Akira picked Homura up and brought him home.
When Homura got settled down, he asked the the system, 'Should three-year-olds strain their body this hard?'
Ding: First of all, I am very proud of you for maturing. Now you realize the situation you are in. Too many variables, not enough time. And yeah, it is generally not recommended
not to over do it. But what you are doing now is fine. Overdoing it would be considered going beyond your limits such as hurting your self, such as breaking bones, muscle strains, tearing ligaments, etc.
'That means more of that hellish training' Homura thought, with slight dissatisfaction.
Ding: That is correct. But they are necessary for your survival and well being.
'That's true.'
Ding: I have been holding this information for a while, but your mom's clan has a secret Kekkei Genkai. I'm not sure of the details, but just know, it is super powerful. It is up to you to unlock it.
'Is it a dojutsu?' Homura asked, excitedly.
Ding: According to my calculations, there is a good chance of it being a dojutsu.
'Why aren't you 100 percent sure?' Homura questioned, with some confusion.
Ding: It's very hard to explain.
Homura asked, with a hint of excitement, 'Anyways, how would I go about unlocking it?'
Ding: Try focusing chakra to your eyes.
Homura willed his some of his chakra into his eyes. He's never experimented with putting chakra in ones eyes, so it was a weird experience for him.
The chakra rapidly disappeared, going into an unknown place.
Ding: It would seem that you have to supply it with an unknown amount of chakra. If you could put some more chakra into your eyes, maybe I can tell you how much you need?
'I put roughly 5 percent of my total chakra into it, and it sucked it right up. It might take a couple of days.' Homura reasoned.
'Lets see how it will react if I put ten percent'
His chakra was once again sucked into his eyes, albeit a little slower this time.
Ding: It's going to take roughly 3 days to get any results. Just keep putting a steady amount of chakra into your eyes.
3 Days Later
Homura modified his routine. He would do practical ninja skills for 4 hours (which went by pretty quick according to Homura) and then do chakra training and redirecting chakra into his eyes. On the third day, he felt a tingling sensation in his eyes.
Ding: The host is on the cusp. This is the most crucial part. Pour everything you got into your eyes. If you mess this up then you might never get your Dojusu.
"Gahaaaaa. It hurts."
Ding: Endure it, you only have a little bit left.
Homura was breathing heavy at this point. He felt a strong burning sensation in his eyes, almost as if someone put a hairdryer right next to one's eye on full blast.
Homura was in such a painful stupor, that he didn't realize that he was done. The system promptly reminded him.
Ding: I think you've done it...
'Hold up, let me see...'
Homura exclaimed out loud, "OH MY GOD ITS SO COOL"
Akira called out in the other room, "Homura honey are you okay?"
"Yes mom, I was just day dreaming."
Akita's voice raised a little, "Don't hurt your self now, you hear me?"
"Ok mom."
Akira went back to what she was doing, knowing that Homura was fine.
Ding: Go check out your powers. I have a theory. Go throw a pillow in the air. See what it does.
Homura threw the pillow in the air. It looked normal.
Ding: Now try to focus on the pillow. Notice how it moves throughout the air. Try to slow it down without touching it.
Homura was confused but did what the system said. This time, Homura noticed something different.
'Why is the pillow moving slower than usual? Wait, no way? Can I slow down objects?"
Ding: Even better, you can slow down time. This is just a theory, but when you unlocked your Dojutsu, which I'll call the Kokugan, I felt a space anomaly. According to my calculations, your eyes compressed all that chakra into a certain point, creating so much pressure, that after a certain point, created a black hole. Now granted, this black hole is so small, that an atom's nucleus would be a 100 times longer than it, but still, it's a black hole. But for some unknown reason, that even I couldn't tell you, the black hole was stable. It might be due to chakra, or maybe something else.
Ding: Let me explain how it works. So black holes have these things called event horizons. And at the event horizon, time becomes meaningless, because nothing can escape it. Think of the water planet from Interstellar. Anyways, I think that your black hole releases a mini event horizon around you, slowing down objects. But for some reason, you seem to be unaffected by it. It's almost as if the even horizon was concentrated on that specific object. My theory still needs some work.
[AN: I am by no means a physics expert so don't roast me. And shout out to Tenshi_Uchiha for the idea.]