二重太陽サンズを中心に5つの惑星を擁するペンタゴナワールド。統一された世界は、類稀なる美貌と不老不死の肉体をもつ絶対的指導者オルドナ・ポセイダルの統治下にあった。しかし、長く続いた治世はやがて腐敗や格差を産み、文明の退化や治安の悪化が深刻になりつつあった。惑星コアムの片田舎に住む若者ダバ・マイロードは、親友で整備士のミラウー・キャオを伴なって青雲の志を胸に旅立つ。旅の目的は行方不明の義妹クワサン・オリビーを探すためでもあった。ダバは父の形見であるA級ヘビーメタル「エルガイム」を駆って旅の行く手を阻む山賊たちや、2人と同様に立身出世の大望を抱いて故郷を旅立った青年・ギャブレット・ギャブレーと激しい戦いを繰り広げる。 br br br (For Non-Japanese Viewers) br When you watch the video, please click the Gear icon "⚙ "in the top-right corner of the screen to access the subtitle options, then select your language if available. br br The Pentagona World, centered around the twin suns Suns, encompassed five planets. This unified world was ruled by the absolute leader, Ordna Poseidal, who possessed unparalleled beauty and an immortal body. However, the long reign eventually bred corruption and inequality, leading to a serious decline in civilization and worsening public order. Daba Myroad, a young man living in a remote area of the planet Koam, sets out on a journey with his best friend and mechanic, Mirau Kao, harboring lofty ambitions. Part of their journey was to search for his missing foster sister, Kwasan Olivie. Driving his father's legacy, the Class A Heavy Metal “L-Gaim,” Daba fought fierce battles against bandits blocking their path and against Gabret Gabre, a young man who, like them, had left his hometown with great ambitions for success.