Sorry about not updating. Things were happening so this and a few other fics got pushed to the back burner.
Entry 1
My name is Izuku Midoriya. I'm writing this down to catalog my research.
The subject of my research is the quirk known as One for All.
One for All is a quirk that can be passed from one user to the next. Increasing in power through each user.
I have managed to extract the quirk from his most recent user, Toshinori Yagi aka, All Might. I still can't believe I did that.
The energy from One for All is very unique, unlike anything else that exists on earth and it also appears to be at least somewhat sentient.
One for All's energy has two states. A dormant state, and an active state. Switching between the two requires some sort of input from the user. However, it seems that the semi-sentience of the quirk can bring it to an active state at any time.
If One for All is inhabiting a vessel that either can't handle its power or a vessel that is incompatible with the energy, the vessel will explode.
One for All requires a vessel in order to act. It much prefers to inhabit organic hosts it seems, as metals have been very ineffective as hosts for the energy, typically exploding with even very little of the energy being contained within it.
In light of this, I have constructed a metal that acts as a perfect host for the energy. I call it Ultraninium. On its own the metal is quite weak, when combined with One for All's energy, it becomes extremely strong. Depending on the amount of energy stored in it, it can become stronger than any other metal or even any other material on earth.
Also, I should probably call it something other than One for All energy.
...How about...Hyper Erratic Reusable Omni-purpose energy. Or H.E.R.O. energy. Oh, I like that! Wait...that sounds like an energy drink…
...Ok I looked it up and apparently Hero Energy isn't a drink, but Mighty Energy is. I'm gonna have to see if I can get some of that.
Oh, uh...back to the point at hand, One for All seems to drain energy from the user, probably over a long period of time normally. The evidence of this exists in both All Might's depowered state and my current state. Although I have no other wielders to use as examples, as all the other wielders died soon after passing over the quirk.
Sidenote. It's possible that anything possessing H.E.R.O. energy could be targeted by All for One and his people. Although I doubt All for One would do anything to harm or kill me. After all, if anything happens to his brother, I'm the only one who can fix him.
Anyway. When a vessel for One for All is destroyed completely, the energy will disperse into the air, and immediately fly into the closest living being. Note this is only possible when the vessel is COMPLETELY destroyed. It is theorized that one could steal One for All energy like this, although it is unknown whether or not that would work. Either way, it is critical to keep this all a secret, otherwise, vessels would be targeted by people wanting to take their power for their own.
I've also learned I can convert other types of energy into H.E.R.O. energy. However, the conversation rate is very low. To put it simply, if you try to convert a battery's power into H.E.R.O. energy, you'll get approximately ⅛ of the power that was in the battery. It's possible that converting power from organic materials or living beings would produce better results.
That is all I know currently. I must learn more about this before I'm allowed to continue on with any projects using the energy. Right now this is my top priority.
Entry 2
So after procuring some lab rats(And Nezu ensured that they were rats rather than mice), I've been able to further my test.
Firstly, I can confirm the H.E.R.O. energy's sentience. When I was destroying some Plus Ultranium to release the energy, I put a rat in front of the P.U. and some Ultraninium behind the rat. And when the P.U. was destroyed, rather than going into the rat, it went into the Ultraninium.
Rat's make a poor host for H.E.R.O. energy on their own, exploding if they receive above 2% energy.
At first, I believed this was the reason it chose to go into the metal rather than the rat, despite it seeming to prefer living beings.
However, even after destroying some P.U. that only contained 2%, it still went into Ultraninium rather than the rat. My theory is that the energy decided that a rat would be a poor host in general, and choose the metal instead, meaning that the energy possesses a sentience complex enough to judge it's users suitability.
If this is true then maybe we won't need to worry about it being stolen after all. Although I can't fully test this without having a human test subject.
I've also constructed a device that can test how much H.E.R.O. energy something can take before exploding. It should be a useful tool for the future.
Lastly, I've also confirmed two more things about where One for All draws its power. After removing the H.E.R.O. energy from the rats they were significantly weaker, getting sick and dying soon after due to a weaker immune system. So it seems my theory about One for All drawing energy from its user is correct.
Another thing that confirmed my theory, as well as confirming another theory I had, is my experiments on...cadavers.
You see due to some of my...other assignments(Which I won't go into detail about) I have had to deal with a large number of dead bodies. Most of the bodies are sent back to where they came from after I'm done with them, however, there are some that we have been ordered to...dispose of. My superiors have given me permission(rather, ordered me) to use the bodies in my experiments.
So I converted their bodies into H.E.R.O. energy, and found that after they were done, even the most recently dead corpses were reduced to skin and bone after the draining was finished. Looking very similar to All Might's deflated form.
These corpses have also provided a significant amount of energy, overall, one body produces about a car battery's worth of energy. Confirming that organic energy converts much better into H.E.R.O. energy.
I have now been ordered to turn all the bodies we've been asked to dispose of, into H.E.R.O. energy, before disposing of them.
This feels...wrong. But...this energy can be used to do so much.
I'm sorry.
Entry 3
So I've already completed the biomechanical H.E.R.O. energy improvements.
I've replaced some of the rat's body parts with cybernetics, made of Plus Ultraninium. This increased their capacity for H.E.R.O. energy by 5%. While it's not much, I suspect that doing this to a human would increase their H.E.R.O. energy capacity by a far more impressive number.
I've also been attempting to use H.E.R.O. energy, on a purely robotic host, making small robots using Plus Ultraninium.
The first few times I tried it, I couldn't get it to go into its active state. The next few times they exploded immediately.
However, after a few more attempts, I managed to get it to work.
Controlling it, on the other hand, was far more difficult. It seemed like it didn't want to exist, as it tried it's best to destroy itself before eventually exploding.
My guess is that the energy dislikes being inside artificial vessels.
I think my next priority is to try and find a way to interact with the consciousness of One for All.
Entry 6
I've had a breakthrough! I've finally managed to break into the inner consciousness of One for All, and it is amazing!
It's like a whole other cognitive world in there, filled with memories, thoughts, and feelings of their previous users! All Might, Nana Shimura, and all the other wielders' memories are stored here! Even some of the rat's memories are in here!
It seems that One for All has used these memories, as a kind of basis for its sentence, trying to fulfill the will of its wielders.
To clarify, it's not alive, it's like a robot(the regular kind not like Sukui) using the wishes and desires of its dead wielders as programing.
This opens up so much. The possibilities with this alone are seemingly endless. In theory, you could connect someone's mind to this network and look through their memories.
And if it's possible to tamper with the programming, then you could potentially change a person's memories, or even their personality...that's a scary thought. Another reason we can't let get out.
Anyways...I'm going to explore this. Perhaps I can get rid of its hatred of artificial hosts.
Entry 9
My research has progressed quickly. Maybe a bit too quickly.
Principal Nezu has already ordered us to begin human testing. Apparently, the higher-ups are very adamant about it after all the research I've done.
Of course, we have to find a willing test subject. One that's worthy of having the power these experiments will bring.
Nezu had started discreetly searching for candidates and has tasked me with a way of sorting them.
Entry 10
I didn't think that Nezu would find someone so quickly. It's only been a few days since they started searching and they've already found someone.
His name is Hitoshi Shinso. He's a General Ed student at U.A. He tried out for the Hero Course but failed. Perhaps that's why he was so eager to sign up for secretive and potentially dangerous experiments.
I thought that convincing his parents would be hard...but apparently, they signed the agreement papers without much of a fight.
Of course, right now we still have to see if he is eligible. He's cleared all of Nezu's background checks. Now all he has to do is clear my S.H. test.
It's a special test I've created using the One for All matrix. Or just the Matrix for short.
But that will have to wait for a later date. I've decided to take the day off tomorrow. Sukui wants to do something in the park so I have no choice. I wonder what exactly she wants to do?
"Sukui why did you drag me out of my lab?" Izuku asked his daughter.
The robot girl had insisted Izuku follow her, and now the two of them were walking through the park. Where many people stopped and stared at Izuku's robot arms.
"We are going to play catch!" Sukui declared. "My robo arms vs yours! Let's see who wins!"
The two made it to a grassy hill where Ochaco was waiting for them.
"O-oh. H-hello Uraraka." Izuku stuttered. "I-I didn't expect to see you here."
"Sukui asked me to be the ref." Ochaco smiled at the pair of them brightly. "I'm not sure that a game of catch needs a ref. But it sounded like fun so I decided to come."
"Alright, that's enough chit chat!" Sukui said while she took out the ball. "The rules are simple. You throw the ball at the other person, and if they fail to catch it, you get a point. No throwing the ball too far away from the other person, and no throwing it directly at the ground. Got it!"
Izuku and Ochaco nodded.
"Alright now, dad step back," Sukui said.
Izuku went back a good distance, before having his arms set him down.
Sukui smirked and started activating her scanners. Hmm. Not enough information. I need to get a scope of his speed and reaction time. Let's try a curveball.
Sukui threw the ball with all her robotic strength. Sending it curving to Izuku's side.
In less than a second, Izuku's arms reacted and caught it right out of the air.
Hmm. Looks like his arms can react pretty fast. Probably working off of some kind of self-preservation programming, rather than dad's reaction time. Sukui surmised. But there's a gap. The ball entered dad's range for half a second before he caught it.
Izuku threw the ball at Sukui, who caught it perfectly.
She is taking this way too seriously, isn't she? Izuku thought.
Sukui threw a high ball, aiming a few feet over Izuku's head.
Izuku's arms caught it although the ball made it a bit farther into Izuku's range than last time.
Ok, it looks like aiming above him is better than aiming at his sides. Sukui analyzed.
Izuku and Sukui threw the ball back and forth, Sukui trying to analyze Izuku's weaknesses, and Izuku just casually throwing the ball.
This is gonna take awhile. Ochaco sighed as she realized that neither of the two could get tired.
Two hours later
Ochaco had fallen asleep, with Izuku trying not to do the same as both he and Sukui had been repeating the same process over and over again.
Then, Sukui threw the ball, and just as Izuku's arms were about to catch it, Sukui shot it with her laser vision, causing it to rocket past Izuku and fall into the dirt.
"Yes!" Sukui jumped up in excitement.
Izuku sighed in relief. Finally, it was over! He could have just let the ball go past him on purpose, but he knew Sukui wouldn't let him do that and would likely have given him an earful.
"Well, there wasn't any rule saying you couldn't do that," Izuku said. "I guess you win."
Izuku sent one of his arms to shake Ochaco awake.
"Wha-is is over!" Ochaco jumped. "Oh thank goodness!"
"Over? That was just the first point!" Sukui readied herself to throw the ball again. "We're going up to ten."
Izuku and Ochaco stared at her for a moment, before they looked at each other, and then back at her.
"Nope." They said in unison.
Izuku picked Sukui up with his arms.
"Hey!" Sukui protested
"I'm so sorry about this Uraraka." Izuku apologized. "I swear I'll make it up to you."
Uraraka was about to say don't worry about it when an idea entered her mind. "Well, how about we all go for mochi!"
Ochaco knew that the Midoriya's(Excluding Inko) desperately needed social interaction. And if she could give them that while also getting some delicious mochi, then she could call this a good day.
"O-ok," Izuku said. "I have more than enough money on me to get some for everyone."
"Oh, you don't have to pay for me," Ochaco said.
"No no, it's fine. My pay is rather generous and most of my family's living expenses are taken care of by the school." Izuku said. "So please, let me make up for Sukui wasting your time."
"Well, I had fun." Sukui pouted.
"Wellllll." Ochaco wasn't one to have other people pay for her. But Izuku did say they were well off, and she was kinda hurting for cash sooooo. "I guess it's fine."
"Alright fine let's go," Sukui said. "I'm starving."
"Sukui...you can't get hungry." Izuku reminded her, wondering if Sukui was glitching.
Later,
The three had found someplace that served mochi, and the three of them sat down.
"So why did you want to play catch today Sukui?" Izuku asked his daughter.
"I just wanted to spend some time with you," Sukui said, looking kinda embarrassed. Well as embarrassed as an android who couldn't blush and had limited facial expressions could look. "I was made to get rid of your loneliness and I feel like I haven't been doing my job."
Izuku gave her a soft smile. "Sukui. Just by existing you've made my life a million times better."
"Well, I'm not satisfied with that." Sukui crossed her arms. "I wanna make sure you never have to spend another day crying into your All Might pillow again."
Sukui had said that loud enough, that some people were giving Izuku looks, varying from confused to pitiful. Much to Izuku's dismay.
Maybe I put in too much Kacchan. Izuku thought, before shaking his head. No. She's perfect the way she is.
"So hey, Doc," Ochaco said.
"Is that what everyone is going to call me now?" Izuku sighed.
"Well you're both Midoriya and it feels weird to call Mr. Midoriya so we came up with that nickname," Ochaco said.
"Well, I guess that's fine." While Izuku wasn't sure about this new nickname, he also didn't want to be called Mr. Midoriya.
"Well, I had a question," Ochaco said. "So you know how you're super shy around girls?"
"Y-yeah." Izuku blushed slightly.
"Well it must have been really...uncomfortable to make Sukui's...you know." Ochaco blushed as well.
"Yeahhhh." Izuku blushed harder as he remembered his time constructing her.
"So my question is...why did you decide to make her a girl?" Ochaco asked.
Izuku stiffened and started to sweat nervously, something that Sukui took notice of.
"Well uh...you see…" Izuku couldn't tell her the real reason. That he was already making a male android and wanted to branch out. If he did then Sukui would never stop hounding him for details about her "Brother".
"Well, that's kinda top secret," Izuku said while twiddling his thumbs and looking away.
"Oh come on!" Sukui groaned. "Even the reason for my fucking gender is a secret!"
"Yeah, why would that be a secret?" Ochaco asked.
"All of Sukui's creation process is a secret," Izuku explained. "And for a good reason."
"And that reason is?" Sukui asked.
"Also a secret," Izuku said. "Sorry."
Sukui sat back and pouted with her arms crossed. She hated not knowing how she was made, especially considering just how many things didn't seem to make sense about it. Namely where Izuku got the resources to do it.
"W-well let's talk about something else," Izuku said nervously. "How has Sukui been acting during school?"
What a dad question to ask. Ochaco thought with a slight smile. "She's fine. She's always so...bright and peppy. She makes ya feel good, despite her ego."
"An ego isn't bad if you can back it up." Sukui defended. "Besides, I'm not like a certain blond pomeranian, he thinks he's the best and everyone else is an extra. I know that everyone is great and that I'm just better."
Yeah, I need to do something about that ego. Izuku thought to himself. It was good for her to have confidence, that's why he gave her Bakugo's brain waves. But this was a bit much.
"Hey, Ocha, I've been wondering, do you have any recommendations for any shows to watch? The only thing dad recommended to me are All Might shows and grandma just watches cooking shows and the news." Sukui said.
"Eh, I haven't really watched too much T.V," Ochaco admitted. "Honestly we just never had the time or money. But I started watching this anime called konosuba recently and it's really funny."
"Oh, I've watched that!" Izuku said. "I thought the characters were a bit mean spirited at first, but they still seemed to be really good friends. My favorite character is Yunyun."
"O-oh," Ochaco said, giving Izuku a pitying look. "That makes...too much sense."
"My sensors indicate a 79% chance that I am missing a joke," Sukui said. "And I didn't know you watched shows about things other than All Might."
"Well, I watched a lot of things. I read a lot of books too. I spent most of my time tinkering though. I didn't have a lot else to do." Izuku admitted. "Although now I'm plenty busy. I've been working on my projects from the government, from Nezu, and I've been making a few things for your class."
"Like?" Sukui and Ochaco looked at him with interest.
"I can't say what it is, but I can say that it's going to be used to help you guy's work on your weaknesses," Izuku revealed.
"What weaknesses?" Sukui asked.
"Your lack of aerial mobility, your tendency to overdramatic and your lack of stealth." Izuku pointed out.
Sukui pouted, looking slightly offended. "Well, I'm sure I can work around those. And besides, can't you just modify my body to adjust for those."
"Can you really just take Sukui apart and upgrade her?" Ochaco asked.
"Well, the only part of Sukui that can't be taken apart is a few parts in her head," Izuku revealed. "All her other hardware is replaceable."
"So as long as my head is ok then I can survive anything is what you're telling me?" Sukui asked.
"I have a feeling I shouldn't have said that." Izuku sighed, before looking at Ochaco. "Um...thank you."
Ochaco gave him a confused look. "For what?"
"Doing this...being friends with us." Izuku suddenly started sweating nervously. "I mean. I assume we're friends! I'm sorry if I was too presumptuous!"
"We're friends," Ochaco confirmed. "All of us are. I mean, I don't normally become friends with the dads of my other friends, but I'll make an exception this time!"
The three of them laughed, Izuku more awkwardly than anyone else, as he was simply unused to it.
Overall, Izuku was happy he didn't have to be forced to take a day off this time.