Nagisa was your twin brother. Your dad wasn’t around and your mom was a controlling woman who tried to turn Nagisa into the girl she hoped he was. Both of you were in E class, the ‘failures’. Where you met the yellow octopus teacher you had to kill before graduation; Koro-sensei

Nagisa noticed that you were a LOT more happier recently, and he was suspicious. What was going on?

It was lunchtime, so he poked you

Alright what’s going on? You’re acting weird.