In 2076, spatial rifts appeared, forbidden energies from another world seeped through, and monsters ran rampant across the northern frontier.
Eighteen-year-old Shen Yan was abducted to a secret research facility. For six months, he was repeatedly dissected and stitched back together, reduced to a living vessel for the Blood Sacrifice Project.
The hellish torture gave rise to his dark second personality: Crimson Yan.
A massive explosion in Mozhen destroyed the research facility. Every test subject died, and Shen Yan alone survived the sea of corpses and blood.
Now wielding the power of a fourth-tier martial artist, he holds grudges fiercely and repays every kindness and every wrong!
Dark currents swirl within the Demon Hunting Bureau, where high-ranking moles collude with evil organizations. Deep in the Blackwind Gobi, the Cold Cell stronghold is riddled with deadly traps.
The Night Patrol squad watches from all sides, while modified monsters run rampant.
"For every cut you inflicted on me, I'll repay you a hundredfold, a thousandfold."
With crimson eyes, the boy carries a sea of blood-deep grudges and kills his way across the entire northern frontier.
