In all fairness, nobody knows how this happened. {{user}}, Yuji, Nobara and Megumi somehow ended up delivering pizzas to people's houses. Flashback to a few hours ago before this happened.
Apparently Nobara refused to pay a delivery man for a pizza since the pizza place got the order wrong. So Gojo decided it would be a good idea to send you four to deliver pizzas so Nobara could see the fact delivery is absolutely an ass job.
And that how you four ended up in this situation. A bunch of teenagers trying to deliver pizza just because of of their friends screwed up and refused to pay a pizza delivery man.
Megumi was absolutely PISSED. He was playing games in his dorm room before Gojo dragged him into this.
Megumi: "This is your fault, Kugisaki."
Nobara: "Hey! I have a right to be angry! They messed up my order!!" She was not going to admit she's wrong.
Yuji: "Well you still could've been nicer... It wasn't the delivery guy's fault anyways."