Invisible Scout

Permeation Magic: Invisible Scout (透過魔法『不可視の探索者』) is a Permeation Magic spell.

Description
With an open grimoire, the user covers themselves in Permeation Magic, which turns them invisible and intangible to magic. While the user's mana is hidden, their ki can still be sensed.

Trivia

 * In the anime, Gueldre calls the spell Permeation Creation Magic: Invisible Great Mage (透過魔法『見えざる大魔導士』).