As the Nervalist siege on Kirkwood continues, the Surre Academy students do what they can to cope. Emilio leads the Student Council through smuggling themselves out of the school -- and right into a confrontation with a Nervalist automaton that promptly gives chase with several of its brethern. The ICP facilitating the evacuation only to find themselves the vendetta of the Remote Attackers obfuscates Nerval having a housekeeping conference with his subordinates while in an anthropoid form prior to Xanthippe's arrival with Nami and Aleida. While the missing-in-action Kazane is shown safe and sound on the Moon with Morihime listening in on the aftermath of Nerval's political maneuvering, Nami meeting Nerval for the first time turns out to be quite an adventure. While Nami and Nerval reconcile their expectations of each other to reality, Akiha recovers herself and is shocked to find that her reckless attempt to chase Nami has gotten her thrown into orbit around Jupiter much to her shock. UL's tabulation of an estimated travel time back to Kirkwood of five years and the oxygen supply lasting ten years gives way to a triangular argument that is only disrupted by Tsutsuji and Benkei's hijacking attempt along with Sakura discovering both the Leopard and Benkei Colonies intact. After Leopard is installed back in his colony body, Honoka and Itsuki seclude themselves to sort out their feelings while Leopard angers Akiha with the misogynist accusation of inevitable treachery »inherent« to the Shishido family -- right until the advent of a mysterious electrical storm within the colony . . .
In the year 311 of the Orbital Calendar, humanity has migrated to countless colony clusters in space. A space colony girl named Akiha Shishidou encounters a malevolent artificial intelligence named Leopard that has been installed on a colony.
