Ep. 2: Tsumugi reveals her Chimera nature after battle while Kobayashi secures research data
Aired on April 18, 2015

Following a battle where Tsumugi fights Gauna with her weapon destroyed, Nagate saves her from Tsuruuchi. Tsumugi destroys the enemy with Kunato's authorization. Kobayashi reveals Tsumugi is a Gauna-human hybrid created in Sidonia, prompting the Immortal Ship Assembly to intervene. Kobayashi restricts access to Ochiai's research extracted by Kunato. Later, Kunato introduces Tsumugi publicly, but her excitement scares the audience, ending the meeting. Nagate and Izana befriend Tsumugi separately. The Assembly votes to impeach Kobayashi, but Ochiai reveals he heard everything and kills them all under Kobayashi's orders.
Episodes
- Ep. 1 · Kunato and Mozuki are trapped by parasites and forced to control others while Nagate faces loss and battle.
- Ep. 2 · Tsumugi reveals her Chimera nature after battle while Kobayashi secures research data
- Ep. 3 · Sidonia heads to Lem Star System while Tsumugi faces a hidden Gauna threat.
- Ep. 4 · Tsumugi shields Sidonia from a Gauna beam while Nagate destroys the main core.
- Ep. 5 · Izana and Tsumugi receive prosthetics and regeneration while Sidonia arrives at Lem Star System
- Ep. 6 · Nagate seeks housing near Tsumugi while the Gravitational Beam Emitter test concludes with unexpected tentacle growth.