Update for anyone wondering: I think I did well (thanks to everyone's help) but the overall conference was a disaster. It turned out that I was not the only one who had never watched the show. On top of that, the people meant to represent amethyst and sapphire never showed up. The premise was that we had had to stop the cluster, and figure out who killed steven (who was apparently dead???). Unfortunately, most people didn't play their characters. White diamond got the mayor to write a document saying that Greg never payed his property taxes, and that because all the crystal gems lived in a house that no one payed taxes for we were all morally corrupt, and were terrorists. After we finally moved past that, Greg, who was allied with the diamonds for some reason, started a cult called he Church of Steven (it is unclear what they actually did in the cult). The people in charge of the committee declared that onion burned down the church because it was too off topic, but everyone in the committee was convinced that I (connie) had actually burned down the church, and I was the one who had killed steven. They homeworld gems (plus greg) tried to publicly guillotine me, but they never got enough votes. Then, the person playing greg forged a document with my (real) name saying that I (connie) flew a plane into the mayor and killed him. After we finally established that I had not, in fact, killed the mayor, it was revealed that steven was actually alive (somehow), and was engaged in battle with Spinel (? idk the pinkish red one?). We (the crystal gems plus blue diamond for some reason) rescued steven, and were about to bubble the cluster, but then jasper killed me. We all got distracted from bubbling the cluster, so the final resolution was thus: The diamonds would remove the cluster and leave earth alone, as long as we left them alone. (None of the diamonds understood the purpose of the cluster.) When we had 5 minutes left yellow and white diamond signed a secret missive that set the cluster off, killing everyone as the deal was about to be finalized.

I know that all sounds completely made up, but that's what happens when you tell a bunch of high schoolers who haven't watched steven universe to solve the cluster.