The legendary "Human Shura" Mo Hai imprisoned himself in the world's most dangerous death sentence in order to abide by his master's order "not to enter Beijing for three years". After being released from prison, in order to trace the truth about his master's death and the "Secret Recipe of Immortality", he was forced to inherit the 10 trillion mahjong debt left by his master, and entered Jiangzhou as a "security guard" to personally protect Qin Lan, the female CEO who holds the key secrets, and thus became involved in the vortex of business struggles, foreign forces and Jianghu grudges.