Low-Fantasy Occultist Isekai - Chapter 18

... ignore his brother's bored questions while slowly guiding a baseball-sized sphere of water through an obstacle course he had built out of the ground as another exercise.

As a caster, he was used to utilizing the most efficient piece of magic for every task, especially since he came from a world where mana was extremely scarce. If he had been told to complete this exercise at maximum speed, he'd have used a kinetic spell to grab and push the water. Given his experience with that school, ...