Seoshi, despite being a non-offensive spell, is Tia's first spell. It generates a dome-shaped shield around an area she focuses on, typically surrounding her, to repel attacks from all sides, which becomes a sphere when used while airborne. Ordinarily, it can only defend against low to middle-class spells, but its power grows stronger depending upon how much willpower is put into it. When grounded, the shield is vulnerable to attacks from below.'''