YSS Ongaku, NS-X1-253, (Japanese for “music”) was a Nozomi-class Scout in the Star Army of Yamatai's First Expeditionary Fleet under the command of Kessaku Sakai Yuuko. During its last mission, it was attacked by the Mishhuvurthyar. The exact details of what happened afterward are not publicly known, but we do know that Yuuko was the only survivor of the Ongaku's crew, and that the Ongaku was destroyed (May 2005).
Date entered service: YE 27
See: Destruction of the YSS Ongaku (PDF Printout)