The celestial city

Four celestial beings who are in control of human emotions. Celeste controls happiness, Cassiopeia controls sadness, Calypso controls fear, and Nova controls anger. Humans pray to the beings and especially Celeste. they also make sacrifices for them. One particular being, a human, makes a huge sacrifice for Nova, and prays that anger fills his every cell. This draws Nova's attention, and she decides to go look and interact with that human. Even though that's against the rules.