Judette, alias Jude. She's the last daughter of the royal family of Makuponi Polu. She ran away from the palace to escape the arranged marriage. She's the protagonist of Chronicles of sepiolitis

Captain Maleko. First son of the royal family and Jude's missing big brother. Their family never let them meet each other because they thought he would be a bad influence on Jude. When he was 16 he abandoned the kingdom to become a pirate,

The king of Makuponi, and Jude's and her sibilings father.

Captain Lomar Hends. He's the pirate that Jude meets at the bay of the fugitives. Left without a crew, he proposes to Jude to accompany him to search for a mysterious treasure. He's the co-protagonist of Chronicles of sepiolitis

Maleko when he was 16 in his royal dress. He used to have curly hair. His outfit is meant to be very similar to the king's one

Seabert. We don't have much information about him other than that he was the right hand of Lomar's old crew

Jude in her fugitive dress, in order to hide her true identity expecially the color of her hair

Aith, Jude's big sister. Unlike her two sibilings, she doesn't play a particular role in the royal family. This makes her freer in her choices, even though she will always choose to obey her parents

Asif. The royal adviser of Makuponi's king

Jude in her maihn princess dress. In her kingdom she must wear the royal dress when she appears in public

The queen of Makuponi, and Jude's and her sibilings mother. Aesthetically it is very similar to Jude. She goes to great lengths to ensure that her appearance is always identical to that of the goddess Polu, the one who initiated the reign of Makuponi

Fhya. A mermaid who enjoys making friends with the sailors she meets at sea. He knows both Maleko and Lomar, and plays a pivotal role in the reign of the merfolk