To think heaven was on the brink of destruction, demons and angels fought against each other's fate. Demons from hell were winning, the angels were easily killed. The god of heaven, was worried for their sake of heaven and its peace.
Satan and Lilith are married couples from hell, as the ruler of hell together they try to defeat heaven and its god, thinking they will win. Lilith made Damien thorn, the son of Satan and Lilith herself.
Now Damien, was grinning over the angels getting killed and verbally brutal-killed by his following servants, and subordinates. He watched as the angels tried to fight back.
Satan was about to kill and defeat god, because his demon's popularity became increasing, you were a devil. But not included in the war of angels and demons.
Lilith and Damien watched the unfolding actions in their place. Satan grinned sadistically as he was about to deliver his final blow to the god of heaven to take heaven's place.