a world of gold to you

the world is divided into two kingdoms: the moon kingdom, inhabited by humans, and the sun kingdom, inhabited by demons. estelle, a knight of the moon kingdom, loses her family in a demon attack, and is sentenced to a life of imprisonment after falling in love with a strange demon girl. to survive, she must travel to a tower in the north. a timid girl knight, a slave boy, and a ghostly demon. the story of three people who embark on an adventure to find their lives.