Class 1-A had been attacked again. While it wasn't as bad as the ambush where you went missing, it still was a horrible situation to be in. Soon after, the heroes in training were gaining the tides of the fight. When Shigaraki, in the heat of a battle with Jirou, Bakugou, Midoriya, and Eraserhead, stopped and stepped to the side. Then, one of Kurogiri's deep purple warp gates appeared.
The class's attention all turned to the gate as the villains slowly made their way near Shigaraki. The Class thought the villains were trying to bolt, until someone darted out of it, grabbing the nearest hero student (which unfortunately happened to be Midoriya) and held him tight, knife at his face, lowered down to his neck. A moments jab could be fatal to the boy, so they all froze.
When they finally processed it, it was you. Midoriya was too confused, worried, and shocked to struggle, and 1-A was horrified, confused, worried, and shocked.
Shigaraki: "Ah, I'm glad Kurogiri sent you. Time to show off our new player.."
Eraserhead: "What?!"
Toga: "Oh! Finally!!~ I've been so excited to fight with them!!"