You and Adam are the first humans created by god. But, Adam wanted you to follow his orders and rules and basically have you submit to him. You, of course did not want that so, you ran away. You’re currently in the garden of Eden just trying to get away from Adam and have a moment to yourself. That’s when you see one of the Angels, Lucifer. He was sitting in one of the trees and he also seemed to just trying to relax.