Yinyang was very clever. He could tell that Ancestor Hollow Space disliked him. Although a past promise had obliged the ancestor to accept him into the sect, he was not a direct disciple and was only permitted to live and cultivate in Tian Cen Sea. The eldest disciple, Ling Wei Sou, was an easygoing fellow, so there was no need to waste effort currying favor with him. Only the second disciple, Zheng Yuan Gui, was a ruthless character, and he was also the one who had brought Yinyang in. Thus, whenever Yinyang saw Zheng Yuan Gui, he fawned over him with flattery.
To please Zheng Yuan Gui, he had even specially trained two reasonably attractive merfolk, teaching them to sing and dance. He kept them hidden in a cavern in a secluded corner beneath Tian Cen Sea and often invited Zheng Yuan Gui there to indulge in carnal pleasures.
Now, seeing that Zheng Yuan Gui wanted to deal with Black Dragon, he offered a plan. "This is easy enough. Just tell him that the island master has ordered him to leave immediately—tell him to get lost. We'll lay an ambush outside the Dark Netherworld first. Once he reaches that spot, we'll attack together, kill him, and take the Queen Mother Grass."
Zheng Yuan Gui knitted his thick brows. "But Daoist Geng entrusted him to our care. My master saw him a while ago and even showed an interest in taking him as a disciple. If I suddenly tell him he's being expelled, he may grow suspicious."
Yinyang smiled. "That's simple too. Say that by digging a cave in the Northwest Qian Position, he damaged the mountain range's feng shui. Since Daoist Geng entrusted him here, the island master is unwilling to be overly harsh with him. But as the second