C119 The Rebellion of the Yin Devil

What exactly is the Yin Devil that emerged from the Devil Tomb? Its appearance has incited panic and chaos across dozens of nations, requiring the intervention of the Dao World's true powerhouses to repel it. These three individuals, judging by their accents, don't appear to be cultivators from Thorerwen. The 'palace' they refer to likely denotes a sect known by that term. Could it be..