|"The Nega'Jem, Part II"|
|Original post date:||2001|
|Previous episode:||"The Nega'Jem, Part I"|
The Phoenix-X crew continues with plans to force the Nega'Jem back home, but soon find they are interrupted by some kind of asteroid-tentacle species called the Sleri. Meanwhile, as all three Vectors of the Phoenix-X are on their own missions, Seifer's team accidentally causes an explosion of an Iso-Star, of which then becomes a threat to everyone.
- The "other universe" in this episode will later be established as the Mirror Universe in "Mirrorlyness!".
- Seifer's knowledge of the whereabouts of the Iso-Star would come from one of his three escaped times aboard Vector 3 in the Vector 3 time-loop, established in the episode "Secret Shuttles, Part IV."