Detailing everything to Kogorō about the witches, he agrees to analyze the medicine's molecular structure and looks for a way to synthesize them. Unfortunately, it may take half to several years. Also, Ryōta has him look at the fertilized alien egg. The girls are glad to rely on Ryōta, with Kana stating that Ryōta likes Neko. Some classmates invite Neko to a karaoke house, though she gets flustered from singing in public. Ryōta tutors his next-door neighbor Kitsuka. The next day, Kotori tells Ryōta about rumors that the lab was founded hundred years ago by alien ruins and powerful aliens that could destroy humanity. Chisato reports to the higher-ups that after interrogating Kikako, their top priority is to capture #1107 and retrieve something known as the 'Grane'. Ryōta takes Kazumi to Akihabara to find equipment for the observatory's computer although she acts as if it's a date. He later takes out the communication device and turns it on, only for it to display an image of a map and a message in German. Kazumi translates the message, "Kill the witches now. Only then will we reveal the truth."