Ep. 10: Izana's squad battles Gauna while Nagate pilots Tsugumori Kai Ni to rescue them.
Izana’s team fights for survival against Gauna forces as Tsumugi and Nagate seek authorization to launch a rescue operation. After the Captain expresses reluctance, Nagate is assigned the newly completed Guardian, Tsugumori Kai Ni, for the mission. Simultaneously, Izana and another pilot descend into the atmosphere of Lem IX using a fragment of Hayakaze as a heat shield while being chased. Izana deduces that Gauna are drawn to the artificial Kabi they previously lost and react to Heigus particles. By discarding their fuel tanks, they evade pursuit but are left with minimal energy to reach the surface. Upon landing, Nagate and Tsumugi fight through enemy lines until they face a Benisuzume-type Gauna. Tsumugi chooses to engage this enemy alone so Nagate can continue searching for Izana.
Episodes
- Ep. 6 · Nagate seeks housing near Tsumugi while the Gravitational Beam Emitter test concludes with unexpected tentacle growth.
- Ep. 7 · Guardians manage a weapon malfunction while pilots face new armor tests and personal revelations.
- Ep. 8 · Nagate and Izana encounter Yuhata at home before Yure seeks Sasaki's help regarding the emitter test.
- Ep. 9 · Izana replaces a deserter and battles a new Gauna type while Nagate watches helplessly.
- Ep. 10 · Izana's squad battles Gauna while Nagate pilots Tsugumori Kai Ni to rescue them.
- Ep. 11 · Izana and squadmate explore Lem IX surface while Nagate fights Gauna and Tsumugi battles Benisuzume
- Ep. 12 · Nagate returns to Sidonia after planetary conquest while Kunato observes an incomplete chimera.