Ginga Eiyuu Densetsu Gaiden: Senoku no Hoshi, Senoku no Hikari

銀河ぎんが英雄えいゆー伝説でんせつ外伝がいでん／／千せん億おくの星ほし、、千せん億おくの光ひかり

Prequel to the original series, focusing on Reinhard and his steps up the chain of command in the Galactic Empire.