He Yan used only a single method to force out the Dihen Sword.
The Dihen Sword was one of the most untamed magic treasures in the cultivation world. The moment any attacking magic treasure capable of threatening it appeared nearby, it would draw it out.
Furthermore, the Dihen was all too familiar with the aura of He Yan's sword. The previous owners of the two swords had once engaged in dharma battles against each other; otherwise, why would the Dihen inside Chen Zhezhe's body have reacted the moment he first laid eyes on He Yan?
Chapter 374