Ye Chen, the sect's great contestant, beheaded the Supreme Elder's beloved grandson to become the leader, but was sent by his master to be an undercover agent in the Yin Mo Sect. He knew in his heart that it was punishment in disguise, but he still accepted the order. Ye Chen deliberately hid his skills, but because of his talent in killing monsters, he was promoted to a core disciple in the Yin Mo Sect. For three years, he continued to pass on secrets to the sect, but the sect's attitude became increasingly cold. He made an appointment with his contact person to inquire about his return date, only to find out that the sect had no intention of letting him go back because of the incident involving the Supreme Elder's grandson. The abandoned Ye Chen no longer pretends. Facing the challenge of the demon cultivator, what choice will he make?