Traitor.The Chairman reveals to Ikaruga the Lost Matrix, the sole remaining cell of a Dark Elf which the Alchemist Company are close to cloning to make weapons. Ikaruga, whose family created her through genetic engineering to work for Alchemist, declares this to be impossible since the cell has been missing for years. The Chairman suspects she knows where the cell is hidden. 35th Platoon do not have enough credits to pass the school year. While brainstorming ideas to earn credits Ikaruga announces she is taking a leave of absence. Takeru finds it strange when she says goodbye, as she has never said it before. Everyone realises Ikaruga has been acting abnormally all day. Elsewhere, scientist Isuka Suginami, who betrayed Alchemist and now works for Valhalla, talks with Haunted about her most recent failure in resurrecting the Dark Elves. Isuka receives a telepathic message from her sister, Ikaruga. Takeru and the girls follow Ikaruga who disappears into the sewers. Ikaruga informs Isuka she has the cell and will trade it to her if she is allowed to observe all future Dark Elf experiments. It is also revealed Ikaruga was about to be executed by Alchemist so she stole the cell and fled to continue her own experiments in private. Takeru and the girls get lost and are almost shot by the Mafia. The rescue Ikaruga from mercenaries hired by Isuka but Takeru and Ikaruga end up separated from the others. With Takeru wounded Ikaruga takes him to a nearby safe-house and warns her sister if 35th Platoon are killed she will destroy the cell. Meanwhile the Chairman is informed by Alchemist they never authorized research into resurrecting the Dark Elves and, concluding the laboratory doing so has gone rogue, give the Chairman 150 new Dragoons to help thoroughly destroy the lab and all its research. Gathering every Knight and Witch Hunter at his disposal, the Chairman declares war on the rogue laboratory. Oka, Mari and Usagi ae held prisoner at the lab and are interrogated by Isuka who is surprised Ikaruga managed to make friends. Through flashback it is revealed that as young child scientist Ikaruga began to question her purpose in life and created a baby Wood Elf which she named Kanaria after she called her Mama. Concluding she would be executed for creating a Wood Elf with no magical powers she stole the cell and tried to leave with Kanaria, but she had already been disposed of. Isuka chose to stay at Alchemist. Ikaruga enrolled at Anti-Magic Academy where any attempt by Alchemist to retrieve the cell would be akin to declaring war on the Inquisitors. Takeru asks her why she wants the Dark Elves to return. Ikaruga responds by stripping and declaring that as she might be killed soon she wants to experience sex while she can.