Ling Yue, the last survivor of the Luoxia Sect, dies, and the soul of Ling Ye, an interstellar assassin, returns. She abandons her former gentleness for ruthless resolve: when provoked, she strikes back; when wronged, she settles the score. Through the path of slaughter, she makes a name for herself in the cultivation world. Just as the Demon Realm launches an invasion and war breaks out between immortals and demons, Ling Ye earns a place in the immortal world's allied forces through her military exploits, where she meets Cang Xuan, the aloof and distant ruler of the immortal realm. One proves the Dao through killing, while the other maintains order across the realm. Forced to join forces against the Demon Realm, they go from keeping their distance to relying on each other with their lives. In the end, they bring the war to a close and walk the immortal path together.
