PROLOGUE
Coloni---the best supernatural school in the Seven Realms, has a long history of nearly a thousand years, and the best messengers of the Seven Realms all come from this school. Every year in mid-July, Koroni releases 300 alien elves around the world to find new students for this school year. The elf is a translucent creature with deep blue eyes. She can find people with supernatural powers in the vast sea of people. The strange elves in Coloni are the best among the five supernatural schools, so they can bring back the best students to Coloni every year.