Regina is the King Jikochuu's daughter and acts as his second in command. Over the course of the series, she strikes up a friendship with Aida Mana.
Regina is selfish, vain, and spoiled. She treats everyone like a peasant and hates anyone who is more beautiful than her. She threatens the Selfish Trio if they don't do what she wants. She is also playful and clings to Mana.