In U.S.J Facility

Having completed the Battle Trial the students now take a trip to the Unforeseen Simulation Joint Facility to train their rescue skills. However, villains unexpectedly show up and now the students must survive their first fight against actual villains. 

-Reader-

Thirteen:"As you can see, you will be put through different simulators to process your skills."

"Wait, wha-"

????:"That won't be necessary..."

I was interrupted by a purple portal opening up and several men with their Quirks at a ready walked out.

As far as we know...the place was hijacked by villains appear in the plaza of the U.S.J., lead by three mysterious villains. One of them notices that All Might is not with our class.

He and colleague review that All Might was supposed to be teaching the class, according to a schedule procured from the previous day.

Mr. Aizawa recognizes that the villains are truly the recent U.A. intruders.

Mr. Aizawa:"No...not you again...Tomura Shigaraka.."

Izuku:"Is that a real villain!?"

Mineta:"

Tomura:"Huh...I'm quite disappointed that All Might isn't here..."

One of the villains, Tomura Shigaraki, is disappointed that All Might is absent. He ponders if the Symbol of Peace will arrive after they've murdered the students. 

Tomura:"I wonder if he'll show up..after we're done with all of you.."

Mr. Aizawa:"I can't let that happen..Thirteen! Get the students out of here!"

Mr. Aizawa takes charge, ordering Thirteen to evacuate the students and contact U.A. High. Izuku has concerns about Aizawa fighting against the villains, but Eraserhead reassures him and leaps into battle. A firing squad sets their sights on Eraserhead, but he uses his Quirk to cancel each of theirs out and knocks them out using his capture weapon. 

Thirteen:"Evacuate quickly but safely! This is not a drill!"

We all complied before booking it to the exit. But the same dark purple substance covered the exit. A villain blocked the exit using his warping Quirk. The bastard's name was Kurogiri.

Kurogiri:"I'm afraid I cannot let you go, I am one of the League of Villains with the same goal to kill All Might shall prevail...Kurogiri!"

Katsuki and Kirishima hastily attack him but to no effect. Before Thirteen can use her Quirk on him, Kurogiri separates the class by using his Quirk as we got transported to different locations of the Facility.

Izuku and I, along with Tsuyu is transported under water in the Shipwreck Zone. A shark-like villain attempts to devour him but he is sent drowning by a kick from Tsuyu. After dispatching the villain, We all head to the boat for safety as I ponder on what to do.

"Crap...My Quirk got stalled...I don't even have my suit with me..."

Izuku:"It's all right F/n, w-we'll be okay.."

Tsuyu:"Yeah, F/n, just calm down!"

She reassured me, I look into the water and saw an incoming shark head at Tsuyu. I look at the side to see a crowbar laying on the ground.

Izuku:"Tsuyu watch out!"

I quickly dashed to the crowbar as the shark jumped out of the water with it's jaws wide open. I swiftly went in front of the sharks face with the crowbar on it's blunt side.

"STAY AWAY FROM HER!!"

I gathered all of my strength and bashed the shark-like villain in the snout, knocking the bastard out cold. I huffed and puffed as Tsuyu hugged me for dear life.

Tsuyu:"T-Thank you, F/n..."

"No problem.."

I looked at Izuku who sighed in relief with a small smile on his face. We heard shouts of peril in the water, as we look, we just saw Mineta trying to swim.

Mineta:"H-HEY GUYS! HELP!"