Ennunien


 * For the school, see Great Tree of Enyunien

Enyunien (エニユニエン) is the spirit born from the rumors and legends of the "Great Tree of Education". He also acts as the Spirit's Institution itself.

Appearance
Enyunien's actual body is the Great Tree of Enyunien, but he can manifest himself on a tree as a large humanoid-face.

Personality
Enyunien has the voice of a hoarse old man, but very calm and composed. As a teacher, he gets very excited when a student asks a question. However, he is very sensitive about his teaching and got angry after the class criticized his bad drawings. He eventually calms down after Anos correctly guesses his drawings and graduates him instantly, showing a self-serving side despite being an educator.

History
In the spirit school, they teach about various spirits and their history. There are all kinds of other lessons, but the one that is required is the spirit class. These extra courses include swords, magic, cooking, arithmetic, how to train and raise spirits, how to create spirits, etc.

Great Spirit Arc
After hearing that the demons from 2,000 years ago were in the spirit school, Anos and his group head there and meet Enyunien. He explains how the school works and begins class. To make it easy for them, he gives an assignment about famous spirits and draws three figures to identify. When Lena mutters about the poor quality of the drawings, Enyunien sees this as an attack to his teaching and gets angry, but calms down after Anos correctly responds.

After class ends, Anos asks to reduce the number of tests he had to take before being able to take the spirit trials, but Enyunien tells him he can't condense it all into one. However, Anos successfully sways him into doing so by comparing his school to the Demon King Academy, where it would be possible due to the teachers' flexibility.

Abilities

 * Magic Space: Enyunien seems to be skilled in spatial magic. When class starts and the doorway disappears, he sends the whole classroom into a magical space devoid of anything. There is also a swamp inside Enyunien that is inhabited by the Long Snake Epiteo, who is said to be long enough to encircle the world 333 times.
 * Magic Eyes: Enyunien has excellent magic eye to detect injustice as a characteristic of the Spirit of Education. Its power increases even more in his body.

Trivia

 * The earliest he had ever graduated someone was 2 weeks and the longest was 50 years. However, Anos manages to beat this record by Day 1 by getting into Enyunien's good graces.