In the year 2337 of the New Star Era, the Philisians once again tried to attack Area 102 of Earth.
In the year 2337 of the New Star Era, the No. 1 Human experimental subject "Key" turned fourteen and participated in the experiment.
"Hello, I am Yan Fei, captain of the Lieling Team of the Ministry of National Security."
"Hello, I am Hua Ranran's adoptive father, Hua Zhou."
This is not a story about two people's love-hate relationship, but a story about two men who admire each other and work hard to stand with each other through their own strength.