Japanese Skill Name: 防壁
Transliteration: The furigana tells us to read it as 'Barrier.'
Description: It can be cast to set up an invisible wall that completely shuts out all monsters and nullifies and deflects all attacks from those monsters. Can be leveled from I to X (Roman numerals). The higher the level of the skill, the higher the level of monsters that it repels.
First Appearance: It is mentioned in Volume 1 Chapter 2 that a Barrier X was in place around Tsuki no Hokora.