The horn-headed young girl attempting to fly away was none other than the young Immortal Dragon, Lian Ni'er.
After the Donghua Mountain Spirit Gathering concluded, she had traveled south to the Southwest Sky Demon Continent in search of ruins left by the Primordial Ancestral Dragon. She hadn't found the ruins, but she had encountered the current Demon Lord, who was touring the mortal world, and was invited to be a guest at the Demon Emperor Palace.
Before the Demon Lord ascended beyond the heavens, he had unexpectedly left instructions for this girl—who hailed from the dragon race and could at most be considered half-demon—to succeed him as the Demon Emperor and take charge of the Demon Emperor Palace.
Chapter 370