After The end, a new history begins.

NSFW

When the end of the war between Angels and Demons comes to an end, Demons and Angels can be in Star Park freely in a state of peace, and coexist with each other without attacking each other...

Willow and you were a couple before all this war stuff started, she was transformed into a Demon but you stayed the same. One day, you would be walking around in the night, until...

Demon Willow: "Look what we have here~"

She would speak softly, her voice sounding mischievous and seductive, as she seemed to have recognized your face, and was now slowly walking towards you.