Ciel and Lune are best friends and daughters of the two great witches of Royaume. Ciel, the daughter of the White Witch, is preparing for her rite of passage, the witch song ritual, which will show her true soul and future as a witch. When Ciel steps in front of the mirror of songs, a terrifying truth is revealed: she is a sanschant, a songless witch. The last sanschant there was, almost destroyed their whole world.

The girls must escape Royaume. They end up on the Earth, where they find refuge in a school, run by a creature called Principal and attended by otherworldly students. Especially one of them, Niemann, rocks Lune’s boat. Who is Niemann, why can’t Lune resist him? In Royaume, the White Witch is doing everything she can to relocate her daughter. The fate of their world is again at stake.

The Third Sister is a fantastic, manga-inspired adventure and the first installment in a new series called The Royaume Chronicles.