From the back of the book:
Under the red moon,
new wizards are gathering
Broom wizards appear
The present day fantasy RPG "Night Wizard The 3rd Edition" delivered by Takeshi Kikuchi. This book is an advanced rules book containing additional data, additional rules for it. This book adds 13 kinds of classes, like the recorders, fighting by wearing the "memories of the world", "aspects of the past", or the "broommen", human shaped brooms ... that is wizards who are robots, or "broom riders" who are pilots mounting brooms as weapons. Adding these to the rule books already printed, that's 31 classes.
"School maze", the training facility for wizard pupils stretching out under the Kimei campus. It is the world's most dangerous lesson. By using the school maze, the range of your "Night Wizard The 3rd Edition" sessions should widen greatly.