The Han State, deemed as the weakest among the Seven States, faces imminent danger posed by the Qin State. What the Han Emperor is unaware of is that the threat comes from none other than their own Great General, Ji Wuye, and his Four Fearful Warriors of Nightfall. Each warrior possesses unique skills in military, finance, politics, and espionage. Meanwhile, Han Fei, the ninth prince of the Han, founded Quicksand in the hopes of establishing a new Han State. Assisting him in this endeavor are Wei Zhuang, Zhang Liang, Zinü, and Nong Yu, who together become embroiled in a vortex of power known as the "world."