All of Morito have to attack the main body in the Gauna until Anti-planet Homing Missile will reach it. Also Beni-Suzume appears, the fight is confusing and chaotic.
It has been decided that a group of unarmed neutralism settle in Seventh Planet of the Lem Star System. Meanwhile, Izana Shinatose and Yuhata Midorikawa each asks Nagate for a trip.
When Sidonia has a hard fight against Gauna, a Human-type Gauna appears and gives protective covering fire for Sidonia. The Human-type Gauna has familiar voice, and introduces itself to all as Tsumugi Shiraui.