Mu Chen experienced a final outbreak of Mad Demon Syndrome, using every bit of energy he could muster to crazily suppress the devouring black energy, and then refined the black energy, transforming it into his own energy.
Moreover, when Mu Chen refined the black energy, he was utterly shocked. Shocked that the black energy did not turn into Nihility Energy, but rather opened up a new space. Mu Chen was unsure what kind of space it was; it was entirely due to the operation of the Divine Dragon Technique, and this energy directly entered the space, becoming Mu Chen's power, extremely bizarre.
Of course, besides the erosion and devouring of the black energy, there was also an invisible force crushing Mu Chen. However, the effect of the invisible energy was negligible, though Mu Chen couldn't do anything about it.