The revelation that Nina is reinstating Itsuki back to active ICP duty gives way to the discovery of a box with a girl inside that later shows up at Akiha's school that offers data about Enigma for asylum. Akiha computing her next move obfuscates Leopard's bewildered disdain at an upgrade Sakura built that earns him a stern reprimand from Kazane who adds her displeasure at Akiha being wielded as his servant along with Honoka who apparently has a profound prologue with the Shishido family Senate. Akiha is conscripted into an exciting adventure at school when the box is mistaken for trash that ends with a timely gunshot from Itsuki and Emilio's intercession. Honoka explains that the box houses a renegade Nervalist that has had her human individuality sealed away as the group returns to Akiha's house for a sleepover as they await Kazane's return. Unfortunately, Aleida attacks the Shishido family in a bid to retrieve the box and succeeds with her retrieval mission in spite of Kazane and Takane's combined intercession.
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.
