The first seen Efy Dolgh pilot. His Geoframe is designated "Yellow Crab" by the U.N. Kennosuke uses the Black Relic to defeat him once, severing the Yellow Crab's right arm, but Hedo returns with a replacement arm for his mecha. 
(Source: Wikipedia, edited)


During the construction of the Kurobe Dam, an ancient artifact was discovered, and so the United Nations Kurobe Research Institute was established. Intellectuals from all over the world gathered to study the object, and the children of those researchers attend Mt. Tate International Senior High School, including the institute head's daughter, Yukina Shirahane. In the summer of 2016, a lone samurai once again awakens!<br>
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(Source: Pony Canyon USA)