...Last time...

After talking with Y/N, we quickly went to Tsu(-chan), Izuku, Mineta, and Aizawa flying away, hearing Shigaraki, say the game wil continue... We have a plan. This is the END of your game Shigaraki, you won't even see it coming.

Because we have the SINGER'S QUIRK!

..Now..

We flew them to the entrace of USJ, and left All Might to do his part. Hopefully this plan goes right. All Might was telling us that he would be able to do it.

How stupid can you really be All Might?

Now's not the time to be negative to others Ying. We just have to be paitent and attack at the right time, when All Might needs us.

Right.

All Might isn't doing well. Midoriya told him, his Quirk would be useless to Nomu.

"Excuse me, who are you?" A familiar voice asked. I turned, and saw Ochako staring at us. The others were as well. "I'm sorry, but we cannot tell you." We said our voices in sync, except for Y/N, it'll be to easy for them to find out. We continued to watch All Might, waiting for our tine to strike.

With our kitsune ears we listened very closely for information. Apearantly, Nomu has shock absortion, no wonder why All Might can't kill him. He can only be defeated down slowly. There we go, we now know our plan will work.

The class started cheering on All Might.

They shouldn't be.

What do we have to tell you Ying?

Sorry.

Ying, Yang, now's not the time to argue about it.

Sorry.

Eveyone, including us, gasped went we saw Nomu in a warp gate escaping, but bringing All Might with him. Kurogiri was saying he's gonna squeeze All Might, since they have his weak spot. This is how they plan on killing him.

Now it's time to begin the plan into action! Go Ying, and Yang!

With all of our strength we flew over, as fast, as we could using our elements, to punch Nomu away. All of us together, we were faster than All Might. Nomu screeched, as he flew away far from us, and All Might. All Might had gotten up, and growled.

He's real stupid, is he? He's not gonna survive doing this.

"All Might it is not safe for you. Get to the class if you can. We'll be taking care of this." I didn't care for his answer, I used my Nature Quirk making vines grab All Might, and making him go to the entrance of USJ.

We stopped Kurogiri from warpping us anywhere, leaving a fire field around his neck armor, so if he tries moving it'll burn him.

Supervision! Nomu is gonna try attacking you!

Turning back around we stopped Nomu from attacking us freezing him half of him to the ground after we flipped him over us. We know Nomu has to be worn down, so this move wouldn't break his bones.

Shigaraki seemed surprised he should be, Ying and Yang holders are all different, we give them our power, they give us their strength. Y/N has a lot, she told us ever since she became a singer, she trained herself to protect. That was 7 years ago, 3 years before she found us.

"Nomu." Shigaraki said, as Nomu was warpped out, breaking his arm, and leg, but he regenerated it.

"Regenration, huh? You must've worked hard." We said. "Get her Nomu." Shigaraki told him, as he ran quickly at us. But he's only as fast as All Might, with our speed combined with Y/N's we're faster. To others eyes it looked like we teleported, when we really only ran fast.

Nomu had ran into the wall, breaking it. Despite Nomu having a big brain, he's really dumb. It's our turn to attack.

Using my Nature Quirk, I stomped the ground, like Cementoss, the ground popping up in air with Nomu as well.

We quickly took put Y/N's sythe, running, and jumping hitting the sythe of Nomu's brain. He screeched out in pain, and the force of the sythe hitting him back to the ground. This'll take a while...

Katsuki's POV

I was with most of the class watching this half black, half white bitch that came outta nowhere. I looked around.

"Crap... Where's Y/N?!"

"Oi, any of you extras seen Y/N?!" I yelled/asked, it caught their attention and they looked around. The damn extras started freaking out. "She was with us when we checked on Aizawa.." Deku muttered. "You weren't keeping an eye on her, Deku?!" I yelled, going to attack him. "Bakugou calm down, she had ran off when we were with her we couldn't keep track of her, ribbit." Frog face said. I "tch"ed and looked away.

It's true (but I'll never admit that out loud) Y/N is really fast, but I know all of her Quirks, that can't be her.
.
.
.
.
Can it?

Ying/Yang/Y/N's POV

When we landed on the ground, Nomu quickly got up, and went to punch us, but thanks to Y/N's flexablity we were able to twist our body, so he missed, and we kicked him far away. Quickly standing straight we took our ninja stars, running as we aimed them at Nomu's brain, 2 out of 4 hitting his brain.

Slowly, but surely we were slowing down his energy.

Ying, when we can use your Fire Quirk to disintergrate him, dead cells won't regenerate.

Yeah. Sounds like a plan, right now let's stick to wearing him down, it would hurt Y/N if we use all of our energy.

"Seems you found a powerful succsessor, Ying and Yang how long have you hand them?" Shigaraki asked. "As if we'd tell you!" We growled, and continued to slow down Nomu.

Throwing punches, as we dodged every single one of his attempts to attack us. We activated our Spirit Quirk to help us, giving one punch to Nomu, feeling the Moon, and Sun spirit by our side making us stronger than Nomu, and All Might combined. Nomu was now at 20% of his strength now, which is still 40% compared to All Might but it's about 25% to us, combined with Y/N it goes down to 5%.

Nomu got up a bit slow, but proceeded to throw some destroyed parts of the building at us, with just a kick we're able to break the parts of building and continue to throw punches at him. Gaining each help from different spirits such as the Winter spirit.

Since we blocked his last punch at us while we're in the air we grabbed his arm spinning in the air using my Air Quirk, and slamming him down to the ground, as we hit the ground, the ground cracking and it falling in peices around us, I activated my fire quirk, the flames were black and white, most powerful flames, and we punched him into the sky, out of USJ, soon later his ashes were scattered around everywhere.

We turned to Shigaraki and Kurogiri. Shigaraki was shaking in anger our kitsune ears twitch as we heard Shigaraki speak, "She really did find the right successor. I can't believe she's actually back. And look what she did to my Nomu." "I suggest you villians leave if you ever want to see light again. Go back to your little hide out." We said. Shigaraki was scratching at his neck. "If Nomu was here he'd rush you right now. Pound you into the ground without giving it a second thought." Shigaraki continued to scratch at his neck, like he was some sort of dog. Kurogiri leaned over to Shigaraki. "Tomura Shigaraki! Please, do not fret." We noticed the villians Eraserhead were defeating are starting to recover, and got our weapons out.

Shigaraki started to run at us, we let him until he got close. "Consider this revenge for what you did to Nomu!" Kurogiri started going to us as well. It'll be helpful if the other pros arrived.

Well you can always dream! Future vision shows they will arrive! Stay strong!

Thank you.

While Shigaraki was going through Kurogiri to disintergrate our face he was shot in the hand, the other teachers/pros arrived. Iida returned, with all of them.

Told you~!

Yes we know.

All the villians started to attack the pros, but Present Mic used his Quirk making the villians stop their attacks and cover their ears. Shigaraki backed away, holding his hand. "Aw, man. The pros are here. It's game over for real. Let's go home, and try this when we can--" I smirked, I smiled, when Shigaraki was shot again by pro hero Snipe. Though, Kurogiri was protecting Shigaraki, and warpped them to their hideout.

When the rest of the class regroupped I flew over, Ochako saw me, and over amazment shining in her eyes. "Wow! You defeated that bird monster! So amazing." She exclaimed as we chuckled.

Uh oh.

Y/N your brother..

Oh my All Might! Is he okay?

He's fine, but he looks angry...

"Oi! These extras are saying you appeared after my sister disappeared, where's Y/N, huh?!" He yelled.

Uh oh, Y/N we don't have time!-

Katsuki's POV

When I mentioned my sister's name, she tensed, and smoke came as we heard a poof. When the smoke cleared we all stood shocked of what we saw....

"Y/N!?" I yelled in shock and anger, seeing my little sister at the same spot the black and white bitch was. She laughed nervously, "Haha.... Um.. Surprise..?" "You have some explaining to do, missy!" I told her, crossing my arms. "And your Quirk (ribbit)!" Round face and Frog face yelled in sync. "Yeah.. You're probably wondering." Y/N responded.

When we gather the rest of these extras, we got on the bus, of course when the ambulance arrive to take care of Aizawa. When everyone was seated, Frog Face was the first to ask Y/N a question. "So, Bakugou-chan was that really you that was fighting the monster?" Y/N looked at her, and nodded, smiling sheepishly, "Y-yeah it was me.." "But how?! Aren't you 15?" The purple perv asked. "Yes I'm 15, um.. When I explain how, it reveal one of my Quirks. Or all of them I don't know." Y/N tapped her chin while saying that. "One of your Quirks?!" The class screeched (execpt for Icy-Hot, me, and the other calm shits). My sister sighed, "Buckle up, cause this'll be a long story..."