200 Years later, an alien creature named "White Nightmare" attacked human homes. The only thing that could fight it was an antibody developed by a doctor. This antibody could only be tolerated by adapters. Therefore, a team was specially trained to resist the "White Nightmare" and launched an all-out attack at the last contaminated site, "Hou'an Village". The secrets of "Hou'an Village" were gradually revealed...
Purpose: Protect our homeland
