My Hero Academia: Blood and Fire

Selene, Celestia, and Izuku found that the last couple of days for their field training were more of the same, they trained with their mentors while working to keep their portions of Japan safe from those who sought to do harm to the people of the cities they were in. Eventually, however, the week of field training was completed and they returned to UA with all sorts of new lessons under their belts, and when they returned to the school each of them handed over their cases, allowing the staff to make sure each of their suits were prepared for future lessons. The other students were more of the same, where each one handed over their suitcase when they arrived and took their seats in the classroom, and it wasn't long before they were talking about their internships and what each of them did during the last week. Of course some of them weren't as happy as the others, since Momo had done nothing but commercials during her time in the field and Kyoka had simply done a lot of cleanup while her mentor did all the fighting.

The hilarious thing, in Selene's eyes, was when they walked in and found Katsuki's hair had been combed in the style of the hero he had trained under, which happened to be Best Jeanist, one of the weirder heroes out there due to the fact that he dressed in denim jeans all over his body, and Katsuki hated his new hairstyle, since it was stuck in that form.

"I dare you fucks to laugh. Try it and I'll fucking murder anyone who chuckles at me." Katsuki stated, his anger on full display like normal, in fact it seemed like his only modes were 'anger' and 'false calm', the latter being how he normally looked while he was in class, though Selene felt that there was a third mode, 'unreasonable hatred towards Deku', which only came out when Izuku went beyond him.

Ochaco, on the other hand, seemed to be in an 'awakened' state, her training with Gunhead had awakened a combat side in her, which had been the entire point of her going and learning from him, to the point that some of the other girls wondered if she might have gone too far. Minoru, as per usual, was a pervert that no one wanted to talk to, and most of the class found interest in the news of Izuku, Tenya, and Shoto bumping into the Hero-Killer, to the point that Endeavor had to come save all of them before they were killed. None of them were spilling the beans on what really happened, which was interesting given that Izuku had spilled the truth about his Quirk to Katsuki, who promptly ignored him when he said it, but the sisters were happy to see that their bother had matured somewhat from this ordeal. Of course both she and Celestia weren't speaking up either, since they knew the truth, because that would mean getting into trouble with the law since it would contradict the official story, rather both of them took another lesson to heart while everyone gathered inside the classroom.

Tenya, of course, did his best to not be taken aback by some of the things that others were saying, rather he focused on his path of becoming a true hero to claim his brother's place, though everyone eventually quieted down as Aizawa came in and started their lessons again.

As it turned out the morning was basically the same as before the field training, Aizawa would make the announcements, or speak about important events that were coming up, before they were handed over to one of the other heroes that were part of UA's staff, just like before. Selene and Celestia were pleased with a return to what they were used to, allowing them to keep learning about the subjects that weren't associated with being a hero, along with all of the ins and outs that they had to teach them for when they finally reached being a pro hero. There was a lot to learn, especially since they delved into the past of how heroes came to be, though when they talked about the start of Quirks, the lawless period that paved the way for the modern world, Selene noted that there was no mention of 'All For One', the villain name given to her father. It was as if hero society had erased him completely, which she could understand since her father claimed that the tales were mostly lies and that the government had twisted what he was doing to fit their own agenda, but she simply accepted it and moved on with their lessons.

Eventually the afternoon was upon them and they were told to change into their hero gear once more, where they gathered outside another of the training facilities that were scattered around the outermost areas of UA, which appeared to be an industrial place, instead of a city block.

"Hi, for I am here... is what I would normally say, but today we're moving right into Foundational Hero Study." All Might said, where Izuku noticed that All Might was wearing his Golden Age costume this time around, as it was different from the one he wore during their first couple of lessons with him, while Selene noted that the hero was sweating a little, meaning he had to be straining himself to maintain his buff form, which made sense since he gave Izuku One For All, "Right on the heels of your workplace training we'll be moving to another lesson: it's the 'rescue training race'. You'll be split into even teams of five, with Selene and Celestia being randomly assigned to two different groups, and race from the starting point to the area that we've indicated as the finish line, as if you were responding to an actual emergency."

"If that's the case, shouldn't we be doing this at USJ?" Tenya asked, showing that he was eager to learn more, while at the same time screwing up the crucial piece of information, though the others whispered about how All Might didn't seem into the lesson, given the sweating he was doing right now, despite them thinking it was something different.

"That's for disasters, like floods and whatnot. This is more like citizen rescue." All Might stated, allowing the others to fully understand what was going on right now, while at the same time many of them were eager to get started on this lesson, to which he glanced down at the list that had been created for him by the other instructors, "Oh, and one more thing: keep the destruction of the environment to a minimum."

Katsuki growled as All Might pointed a finger at him, as he was the one that usually ruined things around him, especially if he thought about the first exercise, before the first group was decided, as it would be Celestia, Izuku, Tenya, Mina, Hanta, and Mashirao, while Selene was placed in Katsuki's group. Each of them were sent to a different part of the industrial area, equal in distance from where All Might had chosen to stand for the purpose of this test, and when the siren went off their devices updated with the area that their mentor had come to a stop in. The siren was the signal for them to start, where Selene and the others found that Hanta used his tape to scale the building like a spider, Mina was melting areas for her fingers to slip into so she could climb, Tenya was running, and Mashirao climbed and used his tail to move. Izuku went full on Full Cowl as he demonstrated his new skills, hopping around like he was a bunny or something, which only made Katsuki annoyed when he realized that Izuku was catching up with him, or even surpassing him in only a week's worth of time.

Selene smiled as the winner was determined in mere moments, as Celestia reached All Might first because of her wings, he had forgotten about her dragon Quirk based on what she was seeing, where Izuku landed before the other students even got close to their mentor, demonstrating his growth over a short period of time.

"All of you have grown well. Keep it up and you'll do well in the End of Term exam." All Might stated, speaking to the group as soon as everyone in Celestia's group reached his position, meaning he'd be saying the same thing to everyone else before the class was done, though while the others started to leave he turned to Izuku and Celestia and lowered his voice, "You did well, my boy... I barely recognized you with those moves. When the school day is finished, please come by my office for a talk... we need to discuss something, namely the origin of One For All, and both of your sisters can come along... I would get an annoyed look or earful from Selene if I excluded you two."

Celestia understood why All Might said such a thing, this information could potentially put Izuku in danger and he knew that both she and Selene were always worried about their brother's safety, so by including them this allowed him to make sure he covered his bases. Following that they returned to the area that the other students were in and Selene's group moved into position, allowing All Might to select a new position in the industrial zone before having the siren sound once more, to which everyone got moving. Celestia found that everyone else in the group was doing the best they could to get up onto the roof, though Selene leapt into the air with her hybrid form before she landed on the roof and rushed across several of the paths that were in front of her. At the same time Katsuki blasted his way up into the air so he could angle himself towards All Might, because he wanted to beat Selene at something, but, as Celestia expected, her sister landed by their mentor long before Katsuki did, causing the boy to frown when he finally caught up with her.

Eventually the other groups made their rounds as well, each with a winner, though Katsuki continued to be annoyed with his defeat, like the child he was, and when they changed back into their school clothes Kyoka ended up stabbing Minoru in the eye when he tried to peep on the girls, causing Momo to seal the small hole he used.

"It's a wonder how he hasn't been thrown in a cell for his crimes." Selene remarked, where the other girls nodded, as Minoru was constantly doing things like this and they even knew he picked Mt. Lady so he could sneak peeks at her while she was fighting, or when she was changing, basically everything he was doing right now, before they sighed and got back to putting on their school attire.

Once that was done, and the school day came to a close, Izuku caught up with Selene and Celestia as they made their way to All Might's office, where they found that he was sitting on a sofa and had returned to his true form, complete with the yellow suit he liked to wear.

"Thank you for coming. Please, lock the door." Toshinori said, where the siblings made sure the door was closed and locked before they took their seats across from their teacher, causing them to see that there were three chairs at the ready for the three of them to sit in, so each of them took their seats as he finally looked up at them, "Izuku, let me apologize for not being there when you fought Stain... a friend filled me in on what happened. Now, I heard that he was able to lick up a bit of your blood and was able to stun you, but I wanted to let you know that you don't have to worry about him suddenly having One For All: you have to be willing to let the power go for it to transfer to someone else, so it can't be forcefully stolen."

"I'll be honest, a lot has been on my mind since that fight... I won't deny that I likely had a worry about that." Izuku replied, as that was the truth, he knew One For All could be passed on by someone taking in the DNA of the current holder, which was him, so Stain getting a bit of his blood had been worrying when he stopped and actually considered it, before he gulped as he and his sisters focused on why they were here in the first place, "But you said that you wanted to talk about the origins of One For All?"

"Yes. You see, One For All is derived from another Quirk that has existed since the very beginning, a dark Quirk by the name of 'All For One'." Toshinori stated, as it was time he told Izuku this, and while he knew he shouldn't be telling the sisters this information he knew that Izuku would tell them, they were worried about him and if he showed up looking concerned he had a feeling they would be told in no time, so he was nipping that problem before it became one, "It's power is exactly how it sounds."

"A Quirk that can steal the Quirks of everyone else and render them the thief's own, while also having the power to grant one or more to others?" Celestia inquired, as that seemed to make the most sense, if one could steal Quirks than she had to assume that it also had the power to give them to people, likely to prevent the owner from overloading from having far too many powers in a single body.

"Indeed. As you know the Age of Phenomenon was a lawless time, where the meaning of being 'human' suddenly vanished without a trace," Toshinori said, which all of them knew from their history books, it was something the modern world had been taught to accept in an effort to prevent the past from being repeated, even though there were those who seemed to act like the old ways were better than the current government, "and it was during that period of time that a figure suddenly rose to power, who gathered the dark people together to form a shadowy organization, spreading his influence around as he stole the Quirks of others and gifted them to his most trusted followers. He was, for a time, Japan's evil ruler, one could call him a 'Lord of Darkness' or even the 'Demon King'... you've likely seen rumors of such a thing on the net, especially since this isn't covered in the history books. Now, those he granted Quirks to were either those he trusted or those he wanted to turn into pawns, or those he wanted to destroy since some bodies couldn't handle certain Quirks, and we've learned that he had a Quirkless brother... so he gave him a Quirk, to try and control him."

"Wait... could he have had his own Quirk?" Izuku asked, as he was going over all of the information that his mentor was in the middle of giving them and that seemed to be the most logical explanation he could come up with, because this was back in the Dawn of Quirks, back when everything started, so it was possible that the brother might have had a Quirk and everyone had missed it since they didn't have the information that the modern world had.

"Good guess. His small Quirk was the power to pass along it's power to another, and it merged with the forced Quirk that is the stockpiling aspect of our Quirk, and the two merged into 'One For All'." Toshinori stated, making a bit of a show about it as he spoke, while noticing that Selene had yet to say anything during the discussion, she was deep in thought, not that he blamed her since this was a lot of information to take in, before he sighed for a moment, "I know you three are curious as to whether or not this evil is still alive, given the time between now and when he was around, and I want to say 'he's gone'... but the reality is that he's an evil that aimed to live indefinitely, likely obtained a Quirk to extend his life, and the previous holders of One For All had to fight him and pass on the Quirk when they could. I... thought I was the one to defeat him, but that foe that Selene and Celestia defeated, that Nomu, could only be created by someone as evil as him, and I'm afraid that, as the ninth holder of One For All, it may be up to you to fight him at some point."

"Oh you can't be serious. Our brother has only had the Quirk for a few weeks, and you expect him to fight someone that not even you could beat?" Selene angrily snapped, because she was so done with this entire talk, the hero in front of her was nothing but bad news and she found herself hating him even more than before, in fact she was sure her hatred for All Might was now far beyond the hatred she had felt for Celestia when she was part of Luna, "He nearly destroyed his body after he got the Quirk from you, and now you're asking him to almost go and die for you!"

"I must agree with Selene. Izuku should be focused on harnessing the power of his Quirk, of being a hero and chasing his dream, and shouldn't have to worry about a 'Demon King'." Celestia said, where Selene found that her sister's eyes changed to Daybreaker's, which now seemed to indicate when something or someone annoyed her in some manner, though this time around she was happy Celestia had her back.

"I... I wasn't trying to say that he should abandon being a hero and rush off to fight All For One, rather that he should be very careful in the future since my enemy is no doubt searching for me." Toshinori hastily remarked, like he was trying to tell the sisters that this wasn't his intention, even though it sure sounded like he was suggesting that Izuku would have to clash with All For One in the future, before he sighed for a moment as he looked at the sisters, "Look, you know All For One dealt me the blow that has basically crippled me, but I was able to deal a similar blow to him as well... Izuku should be fine, as long as my foe doesn't target him. You know I would never intentionally put him in danger."

Selene growled for a moment before deciding that it wasn't worth getting into an argument with All Might, because with how angry she was she might accidentally reveal how she, Celestia, and Izuku were 'All For One's' children, which would be such a major heart attack to the hero since he viewed Hisashi as the greatest evil in the world. Celestia continued to stare at the hero that was in front of them, something that caused Toshinori to sweat as he realized that his words had been taken the wrong way and now there was no way to actually correct them without upsetting the girls more. Izuku, as they expected, told his mentor that he'd seek out All For One when he had mastered One For All, but for the time being he would keep training to master the power that had been bestowed onto him so that when the time came he could beat the Demon King. It was a compromise of sorts, he was siding with his sisters, in the desire to be safe while learning to control his new Quirk, while at the same time telling his mentor that, when the time finally came, he would uphold his role as the next holder of this Quirk, to defeat the great evil for real.

In the end the conversation came to an end and the sisters left with Izuku following them, as it was time to head home, do their homework, and prepare for whatever the future held in store for them, though once Selene had calmed down she'd go talk to her father, causing her to wonder what the coming days might throw at her family next.