Double Breed III

is the third volume of the Double Breed light novel series, written by Erika Nakamura and Illustrated by Fujikura Takehito. It was released under the Dengeki Bunko Imprint in July 2000.

Synopsis
Humanoid weapons of the war period that landed in Japan-Naka Two people who seemed to be ordinary parents and children came from China. Their purpose is to experiment with the humanoid weapon Naka Zero, which was built during the war. However, when noise ran through Naka's pseudo-brain, the program hidden behind Naka's brain was unsealed ... On the other hand, Yuki Katakura felt uncomfortable with her physical condition. He had a headache, like never before. And Yuki had no way of knowing that the "incident" began with Naka's landing in Japan. Humanoid weapons and double breed--when the two destinies intersect ...

(source: Bookwalker JP - Translated)