Demon Soul: One of the three items necessary to become a Magister, the Demon Soul is the power of the gods in ancient times, and the Demon Soul of the Magister is divided into three types: Speed Demon Soul, Force Demon Soul, and Sorcery Demon Soul. (The demon soul of Mo Tianqi, the protagonist of this book, is a demon soul that belongs to the power of the two demon souls of force and magic, and Qi Qi belongs to the beast soul.) The Beast Soul is different from the Demon Soul of the Magister, which is the Beast Soul that is transformed into the Beast Soul by their own strength when the ability of the Desolate Beasts reaches a certain height. ）

Magical energy: Magical energy is the power that a magister must have when using the Demon Soul Technique, and magical energy is the same power as the heaven and earth aura in the book. Magic energy is the power of heaven and earth aura stored in the body of the demon master after passing through the demon soul crystal, so the word magic energy is generally replaced by heaven and earth aura in the book, so you don't have to worry about the relationship between magic energy and heaven and earth aura.

Demon Soul Crystal: It is a transformer that absorbs the aura of heaven and earth and stores it as a magic energy in the body of the Magister, and it is also one of the necessary items for the Magister. If the Magister's Soul Crystal is taken away by another Magus, the Magus will lose his qualification as a Magister and will lose his life.