Strange Steel Fairy Rouran (Japanese: 奇鋼仙女ロウラン Kikou Sennyo Rouran) is a Japanese mecha anime produced by ZEXCS. It premiered on Kids Station in Japan from November 15, 2002 to May 30, 2003.
Dr. Masahiko Mikogami created the organization ASY, & it's five mechs called Gousens, to act as the new defense force for Japan after its own military joined the UN. ASY immediately went after the Shiromorishu, a mysterious group that guided Japan spiritually for centuries, stating that the group had been controlling Japan instead of guiding it. Though their base has been destroyed & their successor, Tatsuya Takechi, is gone & possibly dead the Shiromorishu are ready to enact their vengeance on ASY... but a mysterious girl named Rouran will complicate matters further by bringing back the past between Mikogami & the Shiromorishu.