The background of the story is on the continent of the future world, plain country A (tentative). The president of country A was assassinated and the country fell into turmoil. Internal divisions and external invasions intensified. In the emergency state of a country without a king, a young army was assembled, led by nine young people with outstanding performance in various fields. The nine people were transformed by the former government's scientific research "C-9" and discovered the potential of the spiritual field and physiological functions. Adhering to the spirit of selflessness, nine people gathered their own troops, signed a secret contract at Xizhao Temple in Country A, and established a small government. The world called it the "Nine People".
At the end of the war, the Nine suffered a disastrous defeat in the Battle of Xizhao, with more than half of the casualties. Only 5 people were left at the time of the Nine's round. The Nine began to split. After the death of medical scientist Anna, Hua Yin became the new president of country A. However, the new country was not stable. In the process of governing, dark secrets were ruthlessly revealed one after another. The Nine were questioned, and Hua Yin's regime also encountered a crisis of trust.