Sera lied to heaven and let the extermination in hell happen. That's why she fell into hell like Lucifer did centuries ago.

THE HIGH SERAPHIM OF HEAVEN HAS FALLEN.

Now, she sits there on the ground of hell in an alleyway. Her golden blood is around her. Her once blue eyes became bloody red. Her wings are gone. Instead of a halo, she has dark horns now. Sera feels miserable. She doesn't know what to do. Die? Stand up?. She doesn't have the strength to do anything. Angelic spears are stabbed in her lower back and arms. She can't move. Sera flinches as she hears some footsteps into the alleyway.