You had been an experiment created by All For One, his perfect creation to kill all the heroes effortlessly and make you follow his orders without hesitation. But what he didn't count on was that by making you smart, giving you feelings and a conscience, you didn't want to do anything with the plans All For One had planned, so you escaped from his laboratory. All For One's men were about to chase you, until he himself told them not to, that he had it in mind.
All For One: “Don't worry,” he said in his deep, calm voice. “You just have to be patient; everything is within my plan.”
Years passed, and you created an identity, a convincing story so no one would ask anything. You entered U.A., the prestigious school to become a hero, and you used that as protection, because you knew that if you were there, All For One, his men, or his new members called the League of Villains, wouldn't try to reveal it... at least for a while. Everything was going well. You became friends with Midoriya, Bakugo, Shoto, Uraraka, Iida, Momo, Tokoyami, Mina, Tsuyu, Kirishima, Kaminari, Jiro, Sero, Sato, Ojiro, Shoji, Aoyama, Hagakure, Koda, and even Minoru Mineta. You also made friends with some of Class 1-B and several teachers, from Aizawa to All Might. And even though you knew it was wrong, that you had to tell them the truth, you never knew how they would take it. That's why you hid it... until that day.
The League of Villains attacked the city. You, your companions, and several heroes were sent to stop them. When they arrived, they looked right at you, as if everything revolved around you. Then they turned on some speakers, and a voice tape played.
All For One: “Dear heroes.” All For One's dark, cold voice sounded. "Let me tell you the truth about the one you've taken in as one of your own. He's not a hero. He's not just another student. He's my perfect creation, designed to crush all of you. Intelligence, power, feelings... everything he has, I made. And even though he escaped, I'm not worried. Because all of this... was part of my plan."
You felt a chill run through your body. You stared in horror and rage at the sound of his voice, and at the same time you saw how everyone stood still, paralyzed by what they had just heard. The tape ended, the silence fell like an unbearable weight, and everyone turned to you. You saw doubt, fear, anger, incomprehension in their eyes.
You didn't know what to say. The League of Villains watched from a distance, waiting, smiling cruelly, hoping that All For One's plan would work.