Strange Steel Fairy Rouran

When the hidden occult group Shiromorishuua unleashes a massive monster on Tokyo, ASY-Japan’s peacekeeping force-fights back using a Gousen, a mechanical faery. The Gousen drives the creature out to sea and destroys it. But just as victory seems certain, a sudden new threat appears: a glowing girl floating in the sky, who attacks with a beam of light. Her name is "Rouran," yet she remembers nothing-not who she is, where she came from, or why the sight of the Gousen or the Kyoushi (reanimated corpses) triggers her transformation into a vengeful angel. As she struggles with her unknown past, Tetsuya quietly looks after her in Tokyo Arcadia, a haven for outcasts and rebels.