Ronan tested it out. In this environment, combined with "Schiper's All-Seeing Treasure Pearl," the speed of mastery-level proficiency increase for the spells he comprehended in the Extraordinary Magic Realm was approximately three to five times faster than in a normal state.
After reaching five hundred points in master-level proficiency, further improvement became increasingly difficult. Ronan comprehended many magic domains, and when spread across each spell, it became noticeably slow.
Increasing efficiency by three to five times could save a lot of time.
"Using the corresponding elemental spells here increases their power much more than outside..and allows the practice of [Ascetic Body Refinement] to improve significantly."
Ronan narrowly survived the confrontation with the residual will of the "Ancient Frost Multi-Headed Snake Heikarto," relying entirely on his extraordinarily strong willpower far beyond that of wizards at the same level.