Gasaraki

Gasaraki (ガサラキ) is a mecha anime television series produced by Sunrise. It was directed by Ryousuke Takahashi, who also co-created the series along with Sunrise (Hajime Yatate) and was assisted by Goro Taniguchi. The screenplay was written by Toru Nozaki. It is adapted from a manga the same name.

Plot
In ancient Japan the Gowa family create a demonic Armor in order to defeat their enemies. Hundreds of years later this armor is exploited by the Gowa in the development of Tactical Armor for military usage and the usurpation of Japan.