At present, this spell is widely spread throughout Nora, with many Grand Wizards scrambling to learn it, and Levi is naturally making a fortune.
The licensing fees alone have earned him hundreds of billions; among all his self-created ninth-circle spells, its sales are second only to "Nine Sword" and "Fear Fog".
Levi immediately began developing the seventh kind of sequential magic, after being mentally tormented twice in a row by troublesome enemies like Poison Smoke Lady and Grey Mist Monarch.
He had no choice but to bring forward his sealing arts research, borrowing a mountain of theoretical knowledge from Gargamel and consulting with him remotely from time to time. Elena would tease Levi that he video-called Gargamel more often than he did her.
Levi's plan for sealing arts research can be divided into two stages:
