After the Adam virus spread due to the scheme of Adam Pharmaceutical Co., Ltd., only three unified countries remained in the world. Army Major Kwak Soohwan and Chief Researcher Seokhwa of Rainbow City, a member of the Unified Bureau, became entangled due to the suspicious death of Dr. Han. Also, even if a vaccine was developed, the virus continued to mutate and infect people. As Adam evolved, so did the human race. Kwak Soohwan and Seokhwa also fell into this category. The fight with the enemies attacking Rainbow City accelerated, and Kwak Soohwan and Seokhwa collided with each other…