Chen Feiyu manipulated his true essence and sword intent, charging toward the mysterious communication aperture together. Perhaps it was because the *Hunyuan Sword Classic*, as the teachings of a Sword Immortal, was far too profound.
With the true essence of his Late Legendary realm at that moment, coupled with the sword intent in his dantian, he could only advance inch by inch along the cracks of the aperture, completely unable to break through it thoroughly in a short time.
Yet time was pressing now. Once he stayed too long in the world within the painting, Dantai Yuchen outside would undoubtedly be in danger!
Chapter 721