Ep. 19: Tsutsuji and Benkei face Leopard while Nina's team investigates the underground colony
Aired on May 12, 2009

19
Tsutsuji and Benkei hide in a volcanic asteroid but are ambushed by Leopard, who reclaims his mirrors. As the group searches for Akiha, Leopard urges pursuit of Nerval, yet citizens fear power outages. Nina directs Bou, Min, and Itsuki to explore the underground, where they discover a hot spring. An octopus-like creature attacks, capturing Bou and Min. Itsuki escapes to warn others but is caught until Kazane arrives to rescue everyone. Meanwhile, Akiha and Imoko are trapped inside Xanthippe, a facility filled with boxes. Nerval shows this factory to Nami, while Xanthippe claims humans are merely components for brain colonies. When Akiha attempts to flee, the box humans report her, leading to her capture and confinement within a box.
Episodes
- Ep. 15 · Akiha and friends hijack an orbital elevator while Friedrich provides QT roses against Existence mind control.
- Ep. 16 · Emilio escapes Nervalist control while Akiha faces a five-year delay near Jupiter.
- Ep. 17 · The Ring of Friendship
- Ep. 18 · Nami retreats while Benkei steals mirrors, leading to a party that helps Leopard reconnect before Akiha is kidnapped by Aleida.
- Ep. 19 · Tsutsuji and Benkei face Leopard while Nina's team investigates the underground colony
- Ep. 20 · Akiha Wakes in Box as Honoka's Lifespan Ends and Nami Is Stabbed
- Ep. 21 · Leopard searches for the Sword while Akiha escapes her box before UURE attacks Kirkwood.
- Ep. 22 · Akiha and Itsuki escape Nervalists while Honoka kidnaps Fon and the group rescues traumatized box humans from a disposal factory.
- Ep. 23 · Leopard completes with the sword while Akiha confronts her grief and enemies.