Five Brides and One Demoness

You live your life, live it… and then—one day—you agree to help an old friend. Who would know how that help would end!
They yank me into another world, call me a demoness, and assign me to find a suitable bride for the local Lord of Darkness—since he, poor thing, can’t handle it himself. Of course, getting married is complicated.
So Zhora has to deal with brides, the Lord, and even the ancient Castle, which also has a temper—and secrets. Deadly ones.
But who said that a demon can’t be killed?