An Archdemon's Dilemma: How to Love Your Elf Bride Novel Volume 17 was written by Fuminori Teshima and illustrated by COMTA.

The world is abuzz as centuries of hostilities between sorcerers and Angelic Knights are brought to a screeching halt by the now-widespread knowledge of the Chastille and Barbatos's relationship - regardless of whether they admit to actually being in one.