Star Ocean EX is an anime adaptation based on the video game Star Ocean: The Second Story. It follows the adventures of Claude C. Kenny and Rena Lanford as they journey across the planet Expel, encountering various challenges and uncovering secrets about their world. The series combines elements of science fiction and fantasy, offering a rich storyline and diverse characters. While it expands on the game's plot, it maintains the core themes that captivated fans.