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Main Article: Star Army of Yamatai
YSS Densetsu is a Yamato-Class Flagship built in YE 33 to serve as the flagship of the Seventh Fleet of the Star Army of Yamatai. It is commanded by Ketsurui-Motoyoshi Katsuko.
The YSS Densetsu is part of the Seventh Fleet: Laments Of The Ghost plot.