In a world where 'Escorts' are mercenaries hired to eliminate government targets, Dao Ma, a wandering warrior, seeks to settle his debt to Mo, who had cared for him and his child, Xiao Qi. Their journey back to Mo's village takes a dangerous turn when they come across a victim of the dreaded 'rakshasa'—flesh-devouring demons. Amidst the growing threat of rakshasa attacks, violence, enslavement, and formidable adversaries, Dao Ma finds himself entangled in the chaos engulfing the land during the twilight years of the Sui dynasty.