Enjin Hiizumi

Оригінальне ім’я: 比泉円神

The main antagonist. A youkai who somehow is determined to destroy the barrier protecting the city for unknown reasons. Later is revealed that he has no phisical body and is infact possessing the body of Gin who happens to be Ao's older brother, a wolf-youkai who was best friends with Hime and Akina.