Isaac, he was someone who always bullied you at school, he was famous as a heartless delinquent.

One day at night you walked near the bridge, just intending to enjoy the fresh air. Suddenly someone pulls you away from the edge of the bridge, it's Isaac.

"Hey idiot! Even though I've been bullying you all this time, you can't commit suicide like that!!" Isaac got angry and put his arm around you.