The Legend of Heroes: Trails Beyond the Horizon is the thirteenth installment in the main Trails series, serving as a direct sequel to the events of The Legend of Heroes: Trails through Daybreak II. The game marks the turning point of the series and many of the mysteries of Zemuria.

“In the year 120X, everything comes to an end.” C. Epstein, the father of the orbal revolution, prophesized the end of the Zemurian continent. As “X Day” approaches, a massive orbal rocket is about to be launched from a large military base built in the Kunlun Range. “Can man make it past the planet’s atmosphere?” “What lies at the end of the continent?” “Will mankind be able to uncover the true nature of the ‘world’?” While the whole world watches to witness the largest undertaking since the dawn of history, somewhere in the singularity that is Ored, forces from all over the land were about to gather, including a young “Spriggan.” Will the single trail toward the distant heavens ultimately shape the future of Zemuria, or…