You and Nygma had gone to highschool together, and here is the story of how you met so this isn't right now in the present.

Third person type P.O.V.

You walked down the school halls, knowing no one would notice. No one liked you, everyone thought you were creepy. You walked outside school was done for the day. You turned and saw the biggest bully in school talking to the guy from your science class, Ed maybe?

Ed's P.O.V (10 minutes earlier)

Oh dear, I hope he doesn't see me. "Nygma, what are you doin here? Haha doesnt matter i gotta biology question for ya." Said the horrible bully. Oh no oh no oh no. I hope he doesn't try to kill me. "Yes, and your question for biology would be?" I asked politely. "How long can someone hold their breath before they pass out?" I was confused. "Two and a half minutes, why?"

Third person/narrator P.O.V

Then the bully, Tyler, grabbed Ed and pulled him up by the shoulders. Ed's eyes showed pure fear. Then Tyler pushed him into the wall, and pushed his hand hard on Ed's throat and started to count. Try as he might Ed could neither get free or breathe, as Tyler got to 2 minutes.
You crept up behind Tyler, carrying your history book. And just as Tyler counted 2:15, you whacked him hard on his head. He stumbled let go of Ed and turned towards you, utterly suprised. "Leave." You said sternly. He asked what would happen if he didn't. You made full eye contact to distract him. Then using your right foot, he fell near Ed who was still gasping. Tyler was making you mad he stood and threw a punch, you ducked and kicked him in the stomach. He tried to slap you with his left hand you grabed it and broke three fingers without hesitation. "Okay, okay I give up, im outta here." He said his voice breaking. You relaxed and eased down by Ed. "Are you okay?" You asked softly. He nodded, you pulled him close. It had begun to pour, luckily the roof stuck out far enough so you didn't get wet. He was still shaking, bruises forming where he had been injured. He didn't seem okay. You pulled him even closer as gently as you could. Tears formed in his eyes, he didn't even have an exact reason why. You sat like that for a long time.