Harborim (ハボリム?), also known as Aym or Aim (アイム?) is a demon in the series.
The 23rd spirit of the Goetia and a great Duke of Hell. He appears in the form of a man with a handsome body; however, he possesses three heads, the first head being a serpents, the second being the head of a man with two stars on his forehead, and the third head is that of a cat. He rides on a viper carrying a hot fire brand in his hand, which he will use to set cities, castles, and other places of importance on fire. He can also increase a man's wit and gives true answers on private matters of others unconditionally. He governs 26 legions of infernal spirits.