Due to (Y/N)'s injuries, she was allowed another day off of school. So during the fights between class 1-A and 1-B, (Y/N) lays in her bed, thinking about being the top third hero.

    A knock on her dorm door snaps her out of her thoughts.

    "Hello?" She responds, opening the door while rubbing her tired eyes.

    "Hello.."

    The (H/C)-haired girl snaps her neck up at the sound of the raspy voice, Tomura Shigaraki.

    "What the hell are you doing here?" She asks, quickly blasting her ice at the villain, encasing him in it.

    "Awh," Tomura replies, "you're being so mean."

    (Y/N) grits her teeth, her injuries are still healing, but she's not going to go down without a fight.

    "What do you want with me, Tenko Shimura?"

    The villain flinches at his real name, "How do you know my name?! I buried that name a long time ago!"

    The (E/C)-eyed girl chuckles to herself, taking out her phone to secretly message Mr. Aizawa about the situation, "I know lots about you..Tenko." She replies, "You murdered your family, right?"

    Tenko growls, "Kurogiri, send me back."

    Suddenly a purple portal appears below the villain, "Until we meet again, Elementia."

    (Y/N) stares into the dark abyss moments before it closes, and she does something that no one else would ever think of doing. The girl jumps into the portal, just in time too.

    Back with class 1-A and 1-B with the joint training, Mr. Aizawa get's (Y/N)'s message, and immediately jumps into action.

    "Everyone!" He yells, "There may be a villain back at the dorms, with (Y/N)!"

    Bakugo and Kirishima push past their fellow students, "We're coming with you!"

    Aizawa stares at them, "Fine, Kirishima and anyone who got their provisional license can..so Shoto, you and Bakugo have to stay here."

    Bakugo grits his teeth, but he doesn't argue.

    Please be okay, you dumb nerd.

    Play On My Own by Ashes Remain

https://youtu.be/4l7fhxNrrrM

    When she opens her eyes, they are met with the League of Villains'. Quickly, (Y/N) realizes what shape they are in. Mr. Compress' arm is cut clean off, Kurogiri seems to be tried, Toga is clearly bruised, Dabi just stands in shock, Spinner glares at the girl, and finally, half of Twice's mask is missing.

    "WHAT THE HELL IS A HERO DOING HERE?!" Twice squeals, making (Y/N) giggle.

    "Well it is pretty stupid to leave a portal for me to jump into." The girl replies.

    Kurogiri sighs, "It was a mistake."

    Tenko rolls his eyes, "No, it wasn't. There's no way a hero could fight all of us at once, right? I wonder what the number one hero would think if he saw his daughter's head plastered all over the news? How about we show this hero how fighting with villains really is?"

    (Y/N) smiles, "I've fought real villains before, remember?"

    "Oh, those weren't real villains." Tenko replies, "We are."

    Then the (E/C)-eyed girl's grin widens, and she takes a fighting stance, "What about your deal with Hawks? Was that high-end Nomu not a real villain?"

    Dabi freezes, "I don't care that we are related, you do not get to come in here and yell at us," Blue fire begins to emit from the man's hands, "I will not hesitate to hurt you."

    (Y/N) sighs, "Fine, brother. But that means I won't hesitate to hurt you either. Now, we can do this two ways. You surrender, and I take you to the police calmly, or we can do this the hard way. I can beat you all up until you feel like you're not able to move."

    Toga giggles, "But I wanna stab you a few times first!"

    Due to the distraction, (Y/N) takes the chance to encase the entire area in ice, and she ties Tenko's hands with some vines, to make sure he can decay the ice.

    Although, this isn't enough to stop the villains.

    The six villains groan, as (Y/N)'s phone vibrates. She takes the opening to read it.

    'Where are you?' Aizawa asks.

    'I jumped into a portal with the League of Villains, I'll be fine. Here's my location anyways.' (Y/N) replies.

    The second that the girl presses send, Dabi melts the ice and lunges at his sister. Knowing this would happen, (Y/N) ducks and grabs her brother's hand, clearly not bothered by the heat radiating off of him, because their fire quirks are the same. She slams Dabi onto the floor, hearing a loud crack as his back makes contact.

    The villain groans out in pain, and (Y/N) smacks him over the head with her elbow, knocking him unconsious. She turns back to the rest of the League, Toga has no way of getting out, and Mr. Compress' hands are immoble, as are Tenko's. Kurogiri, he seems to not even care. He could easily make a portal and get his friends out of this situation, but he doesn't.

    "Kurogiri," Tenko hisses, "Why aren't you making any portals?!"

    Spinner and Twice realize that Kurogiri could be a traitor, so Spinner takes the chance to slice his way out of the ice and Twice creates a copy of the villain.

    (Y/N) smiles, "Oh finally, things are getting fun."

    She allows the roots and vines from the earth to take over her body, as ice and fire take their rightful areas on her right and left arms. Light begins to build on both of the girl's palms. In this form, she almost looks like a crazy villain.

    Spinner uses his large sword, the one that stabbed (Y/N) during the summer. He pivots on his ankles to try and get a stab in on the top third hero, but the girl easily dodges his attacks and gets behind him. She creates a large ball of light and shoves it in his face from behind, blinding him momentarily. Then, she takes the sword from him and snaps it in half. Spinner groans out in pain, falling to his knees. (Y/N) uses this moment to freeze him in place with her ice once more. Twice decides that his fight is also over, if he uses his quirk too much, he might split.

    "Awh, is that it?" (Y/N) mutters, "Well alright, I guess it's time for the police."

    Just as the (H/C)-haired girl takes her phone out of her pocket, Kurogiri suddenly springs into action, teleporting his colleagues to another area.

    Mr. Aizawa and (Y/N)'s classmates arrive just in time to see the six villains disappear into a cloud of purple smoke.

    "Seems like we were too late." He mutters, startling the (E/C)-eyed girl.

    Her classmates stare at her in disbelief.

    No one except for Shoto had seen (Y/N) since she left to go on the team-up request with Hawks and Endeavor. Now, the class truly sees what it means to be a hero. You must make the biggest sacrifices ever possible. And for (Y/N), that's her body.

    The girl's right and left side aren't as damaged as they were during the fight between the high-end Nomu or during the fight against Overhaul, but she's pretty beaten. Even though, none of the villains were even able to hurt her.

    "Are you alright?" Kirishima asks, stepping out of the crowd.

    (Y/N) slowly nods, "Yes, this is just damage from my quirk."

    Aizawa sighs, "We really need to work on that."

    The (H/C)-haired girl nods, "I know."

    "Come on," Kirishima continues, "Let's get you to Recovery Girl." He leans the girl on his shoulder, and the students leave the building, heading back to UA high.