Jii (じい) is Prince Hata's retainer and can usually be found at the Prince's side.
Jii is a rather old looking, bespectacled Amanto with grey hair and green skin. Similarly to Prince Hata he has an antenna attached to his forehead.
While Jii initially seems to be a loyal servant to the prince, his true colors are often shown. Often he refers to the Prince as Baka instead of Hata and sometimes he even goes as far as putting Hata into serious danger, like pushing him down the stairs or ignoring him when the Prince's life is in danger. However, Jii actually cares about Hata and he has raised him since he was a baby.