Zeus Keraunos

An omniscient and omnipotent god from Greek mythology. He is the father of Apollo and Dionysus and the younger brother of Hades.

He is the god who created this "miniature garden" out of concern for the relationship between gods and humans; he also serves as the academy headmaster, holding the ultimate authority within this realm.

However, he has a casual personality, and things are often swayed by his whims. He changes his form based on his mood, switching between the appearances of an adult and a child.