Legend of the Galactic Heroes Gaiden (1999)

Legend of the Galactic Heroes Gaiden (1999) delves into the intricate dynamics of power and strategy within the universe of Ginga Eiyuu Densetsu. This OVA series highlights the pivotal moments leading up to the Battle of Astarte, focusing on key figures such as Yang Wen-li from the Free Planets Alliance, alongside the ambitious Reinhard von Müsel and his loyal companion Siegfried Kircheis from the Galactic Empire.

In "Spiral Labyrinth," Yang rises to prominence following a daring civilian evacuation, prompting him to investigate the controversial legacy of the late tactician Bruce Ashbey. His inquiries reveal disturbing allegations surrounding Ashbey's death that could sway the political landscape. Meanwhile, "The Mutineer" sees Reinhard tested in leadership aboard the destroyer Hameln II when he unexpectedly assumes command amidst crisis. As tensions escalate, "The Duelist" showcases Reinhard's sense of honor as he steps in to defend a friend’s family in a duel over mining rights. In "The Retriever," he embarks on a covert mission to reclaim a stolen prototype, while "The Third Battle of Tiamat" marks a significant escalation in the conflict, as Reinhard's strategic brilliance shifts the course of the ongoing war, setting the stage for the epic confrontations to come.