In a cultivation apocalypse where the balance between purity and corruption has collapsed and the Heavenly Dao is crumbling, an ordinary boy named Lu Chen carries a fragmentary ancient legacy. Amid the ruins of despair, he takes up an iron sword called Mortal Heart and fights to survive, protect those he loves, and preserve the faint glimmer in his heart. Through the clashes between close friends, mentors, and formidable foes, he eventually uncovers the truth behind the apocalypse and walks the ultimate path of the sword: bearing the weight of the world in the ordinary, and seeking the Dao amid destruction.
