The next day
Izuku once again reached school the earliest. This time, learning from his past mistake, brought much more advanced textbooks for himself. These textbooks were meant for those in their 3rd year of U.A. He managed to get his hands on them by asking Nezu, who was all but willing to accept this request, sending him all the textbooks within the curriculum of U.A.

He read and read until students started arriving again, this time, he continued reading the textbooks he brought. Even after so long, he had only managed to get through a quarter of the books he brought. When his classmates looked at what he was studying, their heads started spinning from the complicated concepts introduced. They had even more admiration towards their classmate, almost bordering reverence.

This continued until the first period started, where everyone was astonished at the reading speed of their classmate. They had no doubts that he had comprehended everything he read as he occasionally mumbled out his thought processes for them to hear. When Ectoplasm came in to teach math, he was astonished to see Izuku reading a math textbook for those in Year 3. Yet, he was able to believe it as the boy was recommended by Nezu.

The second period was homeroom, where Aizawa-sensei informed them that they were to choose a class representative. Everyone was excited, wanting to be the representative of the class. However, they were immediately discouraged when they looked at Izuku who was almost finished reading the last textbook he had brought. When he finally finished, he looked up to see everyone looking at him. That was when Eraserhead said, "Izuku Midoriya, will you be the representative of class 1-A?"

Eraserhead had no idea why he was so polite, choosing to ask instead of forcing it. Yet, Izuku gave a short reply, "I refuse" and prepared to take a nap. Everyone else in class was shocked as they believed the strongest should be the class representative. They were a bit displeased but went on to find someone suitable.

That was when Bakugo volunteered. When his friends heard his willingness to do so, they supported him, making him the class representative. Eraserhead was glad that they finished their discussions so fast, and spent the rest of the period sleeping. Since their teacher was asleep, they gathered into their own individual group to have some idle conversation. Izuku was left alone, just like back in middle school. But instead of trying to make friends as he did before, he completely ignored everyone.

The next period was break. Izuku went down to the canteen to have his lunch prepared by lunch rush. He gave a small smile and gave his gratitude before sitting alone at a table. Before he even started, an alarm suddenly rang throughout the school. Everyone was confused until a random third year pointed out that someone had infiltrated their school.

This caused everyone to panic and start rushing around, resulting in a chaotic situation. Izuku was pissed that his lunch had been interrupted and used his quirk to scream, "EVERYONE SIT THE F*CK DOWN!"

With this loud shout, everyone, including the third years, felt a chill run down their spines, as if something was threatening their lives. They stopped in their tracks, not a single movement was made. It was not until a minute later when they felt the threat slowly weakening. When they snapped out of it, they realised just how unheroic their actions were previously.

This was the most prestigious U.A! All the teachers here are pros, there was no way anything could happen. With their rationality restored, they looked in the direction of the shout, only to see an empty bowl on a tray, with not a single person around. Only Bakugo and those in 1-A knew that the person who screamed was their mysterious classmate. Their displeasure from earlier disappearing immediately. Replacing it with more respect.

Elsewhere, the teachers were in the faculty room discussing what happened. When they saw this scene play out in the canteen, they too were shocked at how one person managed to calm everyone down. But they had more important things to do. Nezu speculated that the person who infiltrated should be a villain as some of the files in their system had been stolen by a third party. However, the files stolen did not correlate, so they had no idea what their target was.

After their break, instead of All Might coming in to teach, Eraserhead came in once again.

The students could not help but say, "Aizawa-Sensei? What about All Might?"

They only hoped that this class was not canceled. Thankfully, their teacher explained," unfortunately, All Might had met some unexpected trouble on his way here. He was originally supposed to bring you to the Unforeseen Simulation Joint for the lesson, but since he isn't here, I will bring you there. Now, follow me."

He could not believe that All Might had wasted all the time he could maintain his original form to help people. Now, he had no choice but to bring his class to the U.S.J. He felt that something terrible might happen, but he believed in the defense of U.A.

He led them all to a bus, where Izuku sat alone in a corner. No one else could get close to him as he let off an aura that screamed, 'leave me alone!'

Bakugo wanted to apologise, but he noticed that Izuku did not seem to want to talk. He sensibly decided against speaking with him and chose to sit with his new friends. Everyone broke out into conversation until the bus finally reached a dome.

When everyone alighted, they proceeded to enter. In there was the rescue hero, Thirteen. Izuku recognised her the moment he set his eyes on her. She started explaining the point of the Unforeseen Simulation Joint, which Izuku did not listen to, as he already knew about the information.

During her explanation, Izuku and Eraserhead noticed a black mist suddenly appearing. That was when villains started coming out that they realised those were portals. When Izuku noticed, he knew immediately that those were not fake villains. He surrounded himself with his quirk, predicting that the guy creating portals would separate them soon.

Izuku pinpointed the location of the leaders, which was a man made of black mist with a metal brace around his neck, and a man with many hands stuck on him. He could not hear what they were discussing but knew that it was not a good idea to let them have the jump on them. Both he and Eraserhead began attacking the villains that came. Izuku knocked out those with human-like appearances with pinpoint accuracy. While those who he could not identify a weak spot, he quickly killed them. Eraserhead had no time to look at his performance, using both his erasure quirk and his capture weapon to knock out or kill the villains.

Both leaders were taken aback before the mist man made portals to try and separate all the students, including Izuku while trying to keep Eraserhead here. Yet, he was surprised when he was unable to manifest a portal on Izuku as if his quirk was ineffective on him. With no choice, he let them go and sent those with mutant quirks at Eraserhead, knowing full well he could not erase that type of quirk.

The man with the hands asked, "Kurogiri, why aren't you warping that student away?"

Now known as Kurogiri, the mist man replied, "I can't use my quirk on him. Tomura, watch out for him."

The man with hand, now known as Tomura, started scratching his neck as if stressed. But when he thought of the missing Symbol Of Peace, he could not help but smile.

"If we kill his students... wouldn't our beloved Symbol Of Peace appear?"

That was when Kurogiri started warping in more villains, planning to overwhelm them with their numbers. Izuku, noticing how dire the situation is, planned to transform. But he was reluctant to reveal information about himself in front of villains, hence, he retreated into a nearby forest.

When Tomura noticed this, he laughed, "Hahaha! Eraserhead, can't you see your precious student running away? How unfortunate that you won't be dying with him today!"

Izuku heard this but still retreated, knowing full well that his kitsune form would be of more help right now. He ran for around 30 minutes, before reaching a clearing. His transformation would cause the temperature to increase drastically, and he did not want to harm the students around him.

The temperature in the surroundings suddenly spiked, reaching around 2000 degrees Celsius. The villain that had been chasing him was melted into liquid immediately. A prison appeared once again within the flame, dragging the soul once. The prison was so illusory that they would not notice it if one were not actively looking for it.

Izuku has left, with Izumi replacing him. Thank the gods that her hero costume was designed to be extremely fireproof. She kept it in one of her pockets before running back. When she finally arrived, she saw the scene where Tenya Ilda ran off to inform the teachers. Ochaco, Sero and Sato stalling the mist man, Kurogiri. At this time, Bakugo, Tsuyu, and Mineta had just arrived.

The mist man informed hand man, causing him to scratch himself more. He slowly stopped before giving a nod. He then subdued Tsuyu and prepared to kill her when she managed to escape with Eraserhead's help. During this time, Izumi was slowly killing off the villains. That was when something happened, a bird man with his brain exposed attacked Eraserhead. Bakugo used all his power to attack the Nomu, yet not a single wound was caused.

Izumi could not care less, she was entirely focused on the Nomu slamming her papa's head against the floor. She stood there, anger burning through her blood until suddenly, the anger cooled down. She knew she was angry, she wanted to kill the bird, she wanted to destroy the villains, she wanted them all to die!

As if her fire was responding to her, the tremendous heat cooled down. She was furious, but her rationality was not consumed by the flames of anger. Her flames slowly spread, until they covered the whole of U.S.J. The illusory prison slowly turned real, and gradually expanded, until a shadow covered the whole of U.S.J. Everyone underneath could faintly hear the crying, pleading, and begging of those trapped within.

A low, guttural, shriek escaped Izumi's lips. The leader of the villains looked at her and felt as if his life no longer belonged to him. His life and death were now decided by this girl in front of him. He wanted to call Nomu to kill her, hating this feeling of no control, but he could not speak. He looked down to see his body disintegrating slowly, the hands that surround his body slowly disintegrating as well. He stared at them,' mother, father, sister...'

He wanted to kill, how dare she take away his family. But that intent to kill was suppressed when he saw the situation around him. Kurogiri's attire had already disappeared, the metal brace around him already half dissolved. No matter how much he tried, he could not use his quirk. Tomura looked at Nomu, shocked to see that the Nomu's body had already disappeared. Only the head remained, and even that was disintegrating. He looked up to see all the villains he brought dissipating as well. That was when he woke up from his anger.

They had to leave. Right now.

The prison extended out its tentacles, grabbing illusory figures from the body of the deceased. It plundered and stole, robbing the bodies of its inhabitants, giving others a sense of dread. Izumi was already in front of the dead Nomu, she hugged Eraserhead's injured body, before using her way of healing once again. Once she was finished, she passed out. All the phenomena disappeared as if it was never there, to begin with.

Eraserhead had once again entered a state of berserk. He attacked all the villains that still survived. But the leader of this attack had long left the moment their quirks were returned. With nowhere to vent his rage, he went around, killing those villains he encountered. After a while, he finally calmed down. He looked on his back to see his partner sleeping soundly. She was hugging his head and wrapping her tail around him.

It was at this moment All Might arrived. He had wanted to arrive sooner but was held back by Nezu's nagging. Yet, he came back to see nothing but the dead bodies of countless villains, and ashes that blanketed the area.

He was shocked to see the damage caused and worried about his students. But he quickly noticed the students in a corner. Everyone was there, except the green-haired boy. That was when Eraserhead finally appeared, carrying a blonde fox girl on his back. Everyone in class seemed to be afraid of the girl, while All Might felt that she was very familiar. He took out a notebook from long ago. Inside, was the description of a vigilante given by his friend, Tsukauchi.

He could see that the vigilante in the description was indeed referring to the girl on Eraserhead's back. But it was not the time to ask questions. He quickly instructed all the students to leave, while simultaneously calling the other heroes making their way here, saying that the situation has been resolved.
-----
Later that day
Izumi once again woke up, finding herself within a white room. She looked down to check on herself, relieved to see that she sustained no injuries. She looked around and discovered her papa dozing off right beside her. She quickly jumped onto his head, rubbing her tail on his face.

This woke up the sleep-deprived man, who gave a small smile in response. He gently put her down and rubbed her head. He did not bother asking her how she had come, knowing full well that she would not tell him. They enjoyed this sweet moment until the door to the infirmary opened to reveal a bony man, a short and old woman, and a detective.

Izumi knew who exactly they were. All Might, her father. Recovery Girl, the doctor that healed her twice before. And Tsukauchi, a detective with the quirk lie detector, is an important member of the police force. She knew what was coming up.

Turns out, she was right, spending the next few minutes answering questions. During which, she completely disabled his quirk, causing him to be unable to tell what she said right or wrong. Though he asked her to remove it, she only shook her cute face.

Eraserhead was surprised that she was able to do so, but did not question her. She was his beloved partner and daughter, how could he bear to question her?

However, the interrogation was not fruitless. At least they now know she was the main reason the League of Villains, the organisation that attacked them today, suffered a huge loss. Plus, they trusted her as she seemed to be very close with Eraserhead. Though they do not understand why she disliked All might. When asked, all she said was," he is a meanie!" Causing intense damage to All Might's heart.

The interrogation ended here when Nezu finally arrived. He asked Eraserhead to leave before confronting her.

"Izumi, correct? Do you have any information regarding Izuku Midoriya?"

She was shaken to hear this but swiftly shook her head, refusing to answer. Though she could erase his quirk to stop him from probing, she felt reluctant to do so. Clearly, this rat already knew the answer. In fact, he probably knew that both Izumi and Izuku are the same.

Nezu did not probe, knowing the concept of the nail that sticks out will be hammered. He knew that she was trying to hide a trump card for herself, hence he no longer tried to get her to admit it.

He gave Izuku a week's leave due to 'severe injuries', before dismissing her. She was thankful for the consideration of the principal but felt that she should not hide for long. She was not worried about being at a disadvantage with her powerful quirks, even without her trump card. But the real reason was that she was no longer satisfied with seeing her papa from afar, instead, she wanted close contact with him.

As can be seen, human greed knows no bounds. With this, she hoped for an opportunity to reveal herself, not knowing that the opportunity to do so was already close by.
-----
Here's another chapter! Slightly shorter at 2703 words, but the next chapter will be when Izumi appears more often!

I at first did not want to rush through the plot, but since My Hero Academia's plot was already fast-paced, to begin with, plus my desire for more loli stuff to write, I moved by fast.

Instead of All might being injured this time and Eraserhead getting hurt, they were all safe and sound. Instead, the league of villains suffered a massive loss, causing severe injury to Tomura. His thirst for revenge should be at an all-time high for the hands that came from his parents were lost during the fight.

The next chapter will be the sports fest! Hopefully, I have the motivation to write later. If not, please wait for it on the weekends!

If you spot any mistakes or any improvements to be made, please comment down! Thanks in advance!