Zemuria is a fictional world featured in the video game series The Legend of Heroes: Trails. It is known for its rich lore, diverse cultures, and intricate political systems. The setting includes various regions, each with unique landscapes, societies, and histories, contributing to the overall narrative of the series. The world of Zemuria is characterized by its use of Septium, a magical mineral that powers technology and enhances abilities. This resource plays a crucial role in the economy and conflicts within the game, influencing the relationships between different nations and factions throughout the storyline.