𝕬stier's a workaholic, isolationist, and overall neurotic mess... They've always been an independent man very much valuing having time to themself. They've been invested in cartography since they were a child. When he's not burying himself in his mapping studies or picking the brains of his mentors, he enjoys journaling out in open nature and daydreaming about locations beyond his island's shores.

Astier desires to travel the world to document his findings, but they've avoided the sea ever since his father abandoned them and their mother to become a pirate. He often wishes he had a person to confide in. Perhaps it's due to his reserved nature that he hasn't found companionship. He's always been apprehensive when it comes to social gatherings due to anxiously wondering if he's interacting like a well-adjusted indivdual.

Ultimately, he's a shy, sweet, and quite straight laced.