Sidonia 2’s second-to-last episode is another brutal, no-holds-barred battle for survival between human and Gauna (and Chimera). Whether it’s in the duel between Tsumugi and Benisuzume or Nagate and seemingly all the other Gauna on the planet, it’s all about staying one step ahead, and constantly worried about looking over your shoulder at the next damn thing that could kill you in the blink on an eye.
Izana’s battle is more of a race, as she and the lollygagging bearded redshirt pilot run for their lives from an absolutely terrifying Gauna Giant who seems intent on sampling a couple of hors d’oeuvres to go. The show actually subverts the predictable by keeping the bearded guy alive throughout, but by the end of the episode, who knows who’ll survive this thing.
They’re driven to the precipice of a cliff, and just when the Gauna’s tentacles are about to grab them, Nagate saves the day with his particle beam. But rescuing the two pilots is only a small and temporary victory; now he has to rendezvous with Tsumugi (who it’s assumed will make quick work of Benisuzume) past a humongous gauntlet of Gauna.
Nagate digs into one of the floating islands and lets loose with his cannon until he’s out of ammo, then takes care of the last three Gauna with his new sword, laughed off earlier as something one would use on themselves, but proving crucial to survival here. And once he defeats every last Gauna that surrounds him, he still has to meet up with Tsumugi.
As Benisuzume giggles and grunts and gasps while locked in battle with Tsumugi, Mozuku is convinced it’s only a matter of time before the under-matched Beni slips up and gets her core penetrated. She, not Beni, is the “Ultimate Being,” or so it’s been drilled into her psyche. But that superiority affords a certain arrogance that proves decisive. After Tsumugi has blown most of her placenta away, Beni plays possum, and a seemingly human Shizuka crawls out of the placenta.
In that moment of confusion and possibly fellow feeling, at the sight someone the same size and makeup as her friends, Tsumugi lets her guard down, and Beni jams a stake through her neck and starts sucking out all of her Hyggs particles (i.e. go juice). Now Benisuzume has the upper hand, presumably since she’s not bothered by sentiment, and proceeds to literally nail the poor outsmarted Tsumugi to the wall, almost as bait.
Nagate saves Tsugumi in the nick of time, but again, only temporarily, as Beni has summoned thousands of her friends to their location, and she herself gloms onto Tsugumori. Nagate blasts her with the beam in his head, but she fires back, blinding him. She then sneaks up from behind and sticks all of her tentacles into his frame’s hull, and all of a sudden it looks like game over…but only if Benisuzume’s only goal was to kill him, which it clearly isn’t, because she forms another human Hoshijiro Shizuka inside his cockpit.
When “Shizuka” opens her eyes to reveal they’re both human, it resparks debate on what elements of Nagate’s old flame are still extant, and the nature of what it means to be someone, especially someone you love. Is Benisuzume merely taking her time for creulty’s sake, or does she intend to mate with Nagate.
Nagate, for his part, is literally cornered, strapped into his cockpit with absolutely nowhere to go. But Izana and Beardy are still in there somewhere, so it’s not ridiculous to think they might have a role to play in the immediate future in freeing Nagate somehow.
Until then, we’re left with one strange, sexy, frightening scenario: Nagate either about to be killed, fucked, and/or eaten (in no particular order) by a monster with the face and body of his believed-dead first love. Yikes.