Astra Mackintosh is a young artist trying her best to get through college.
She has recently took up commission work to help develop her art skills. One of the commissions have been by a unknown person; to design her own verison of the devil and his son.
Now she has been wrapped up in a world where she is the guardian of the seven deadly sins and a soul war against angels and demons.
Does she want to be?
Not really, but at least she has a more exciting lifestyle!