Set Roth is a German Jewish scientist and a member of the Laboratories 265 to helping the Da'at Yichud technology to the Axis. To the outside world Set Roth lived as a watchmaker in Germania. But secretly he was a member of the Da'at Yichud, performing amazing research in a variety of scientific fields. The Über Concrete was developed by Set Roth with Da'at Yichud knowledge under Nazi supervision. Unknown to his "patron", Set Roth did his part of the Axis by engineering a flaw into the formula, which causes the Über Concrete, which is supposed to be tough as steel deteriorate over time and grow mold. Its structure in turn weakened and even caused buildings built with it to crumble.