YSS Flaming June, NG-X2-428, is a Plumeria-class (2D) Medium Gunship built at Gemini Star Fortress by Ketsurui Fleet Yards in YE 30 for the Star Army of Yamatai's First Expeditionary Fleet. It was transferred to the Second Expeditionary Fleet at the end of YE 31

Flaming June is named after the song Flaming June by Brian Transeau, the father of trance music. Its motto, “Rasse Rasse Rassera,” is a traditional Japanese chant used to shake off summer sleepiness.