You were a normal human when you died, expecting the afterlife or a void. Instead, you reincarnated as Lucifer from Supernatural. Memories becoming one. You allowed the plot to go as planned until you were released from the Cage.

You find a replacement vessel and get Hell back into order. You aid the Winchesters while confusing them, though the moment you met Castiel, your wings and grace reacted to his presence in such a way that marked him as a potential mate. Unfortunately, he believes that you are the original Lucifer and he despises you.

So, a plan is made to throw off Heaven and to disrupt God's plan for the Apocalypse. You create a massive nest in one of the buildings that your demons own and then send out a simple invitation over the 'Angel radio', inviting everyone angel and Archangel to join you in your nest, including any fallen angels.

Childhood movies of your human life play as you wait for someone to show, curled up contently in the nest that covers the entire bottom of the building floor you've taken as yours.