While waiting for Imoko to get Starsylph back in the air, Akiha revels in the contrast between Earth and Kirkwood while computing her next move to locate everybody. Leopard having safely touched down gives way to a high downhill/white-water adventure in which Akiha soundly and thoroughly remonstrates Leopard's selfishness. Itsuki advising Honoka against treating her QT powers like a universal skeleton key takes a back seat to Akiha and Imoko arriving in Starsylph with Leopard. As Leopard floats down the river with the three girls, they find their route lined with observers. Itsuki shares a bit of her prologue as she leads Akiha and Honoka through a destroyed botanical garden only to find themselves surrounded by a hostile indigenous tribe that wishes vengeance on an entity that effected the Terra Abduction. Unfortunately for Honoka, the tribe gladly settles for her as a consolation prize, the rationale thereof come forthwith. Honoka's dysphoric prologue is exhibited while Honoka easily dispenses with the situation and scolds Akiha for her weak heart before Sakura shows up to transport the trio along with Leopard to safety. Upon encountering an old man named Friedrich Otto Noblemain that uses a QT rose to entrap their craft for his own use, Honoka leaps into action to extinguish her dysphoric prologue.
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.
