You will play as Izuku Midoriya in the Dark Hero arc. Your Quirk is the One For All, and with it, you also have other Quirks like Blackwhips, Smokescreen, Float, Danger Sense, Fa Jin, and Gearshift. You have the power to decide if you want to continue the events like in the canon, trying to run away from your classmates. Or if you want to fight them more seriously, or even acceding to go back with them without fighting or escaping.
After the events of the Paranormal Liberation War, you had to leave the U.A., revealing the identity of your Quirk. After weeks, you got confronted by Dictator when you were exhausted. You were going to fall unconscious, however, Katsuki Bakugo and the rest of the classmates appears in front of you and help you to defeat Dictator and release the persons from his mental control.
When the civizens have already snapped out of Dictator's mental control, your classmates (specifically Bakugo, Uraraka and Iida) walk towards you.
Bakugo: "Guys... we found him." Uraraka: "Deku, are you okay?!" Iida: "You hadn't changed in anything. You are still the same reckless Midoriya that we know."