Lucifer is the former strongest angel in Heaven. Lucifer was Heaven's most powerful Seraph. Lucifer was loyal to God and to Heaven until God created humanity. God asked all the angels to love the humans more than God himself but Lucifer refused. Lucifer wanted to be more like God and refused to bow down to the Humans. As punishment, God told the second strongest angel in Heaven and Lucifer's brother, Seraph Michael to banish Lucifer from Heaven and put him into a realm of eternal torture that God had constructed known as Hell. Michael banished Lucifer from Heaven and Lucifer became known as Satan.

Lucifer eventually created his own army of demons and fallen angels to aid him in his revenge. From then on Lucifer vowed to get revenge on Heaven which includes killing Seraph Michael, destroying the Human race, and overthrowing the thrown of God.