Synopsis

Saiga is just an ordinary high school student who happens to be really good at math. His normal life gets turned upside down when his family learns that his father—a missing archaeologist who disappeared years ago while exploring—has finally been found. Along with his remains are research notes and artifacts that need to be examined, leading the family to a famous triangular mountain in Japan sometimes called "Japan's pyramid," a place some believe might actually be man-made. Things escalate when a meteor crashes down from space carrying a strange robotic lifeform that starts wreaking havoc. During the chaos, a mysterious bracelet from his father's research activates and bonds Saiga with an ancient robot buried inside the pyramid—a machine the inscriptions identify as Reideen. Now Saiga and his newfound guardian robot have to stand against whatever threat came down from the sky.

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Genres