Ep. 23: Yukie is assimilated by Idun while Kazuki and friends struggle with loss and Soushi's disappearance.
Aired on December 13, 2004
At a Neo UN development base, Yukie undergoes testing to pilot the Fafner Mark Nicht, but Idun, having assumed human form, assimilates her and destroys the facility. Meanwhile, Kazuki, Maya, and Canon fail to return Kenji to the Alvis base after Mamoru's death. Soushi remains trapped in the Siegfried System, confronting his past, while Kazuki and Tsubaki attempt to rescue him. Idun suddenly attacks the island to assimilate the entire base. Maya, Michio, and Canon intercept but are easily defeated. Michio activates the self-destruction sequence to eject, yet he is captured and dies in the blast. Finally, Soushi vanishes with the Siegfried System, leaving Kazuki furious.
Episodes
- Ep. 19 · Maya trains as a sniper while pilots face a Festum attack during a bone festival notice.
- Ep. 20 · Lantern preparations begin as Canon and Sakura reconcile after the alien invasion.
- Ep. 21 · Sakura pilots relax before weekend training while Fumihiko suspects alien diversion
- Ep. 22 · Sakura's assimilation by a Festum is revealed after the pilots defeat three enemies and face a new threat.
- Ep. 23 · Yukie is assimilated by Idun while Kazuki and friends struggle with loss and Soushi's disappearance.
- Ep. 24 · Akane remains assimilated while Mjolnir arrives to provide data for restoring those affected by Festum assimilation.
- Ep. 25 · The Sky (Azure)
- Ep. 26 · The Sky (Azure)