Kafka is now a member of the Defense Force, if not a full-fledged one. But Hoshina tells him he has three months to prove himself before he's fired...

A mysterious humanoid monster that suddenly appeared mercilessly attacks Reno and Iharu. While protecting the mortally wounded Iharu, Reno bravely confronts him. Relying on information from Kikoru, who had met the same monster during the selection exam, Reno barely manages to bite him, but is gradually cornered.