Grimoire

First mentioned in Day 111 (day 116 in the manga).
A tome/book used to teach magic. Can contain information anywhere from low-tier to extremely advanced magic depending on the rarity of the Grimoire.
You can't read what's inside them if you don't have the appropriate level.
They are usually expensive and the rarer ones can go for tens of Gold Plates.
Category:Items
Category:Re:Monster Volume 1
Category:Re:Monster Volume 2
Category:Re:Monster Volume 3