The person deep underground was, of course, none other than Li Xiaoya.
Although Hell King Wugui believed Li Xiaoya had left, that was exactly the outcome Li Xiaoya wanted. Before entering, he had considered more than a dozen possibilities. What if he encountered Hell King Wugui the moment he entered? What if there were only demon beasts inside, but no Hell King Wugui? What if an ambush had already been laid for him? Li Xiaoya had naturally thought everything through... In fact, it was already a tremendous stroke of luck that he had not encountered the most terrifying possibility: Hell King Wugui guarding the entrance to the Fifteenth Layer himself, with a formation set up to prevent the Red Token from teleporting anyone away. Then Li Xiaoya could have cried to heaven without receiving a single answer...
After some calculation, Li Xiaoya decided he should not be unlucky enough to run into that situation. He had also considered the matter carefully. Whether Hell King Wugui would be guarding the entrance to the Fifteenth Layer was difficult to predict, though he did have some confidence that the king would not be there.
One aspect of Hell King Wugui's personality was clear: he held his own status in high regard. Otherwise, he would not have gathered so many demon beast subordinates to order around and lord over. Though he was a cultivator, with subordinates at his beck and call, he was unlikely to lower himself by constantly obstructing Li Xiaoya in person. Di Long Yunyi and the others had said that quite a few cultivators had reached the Fifteenth Layer, which showed that Hell King Wugui disliked handling things himself. If he had personally come to trouble Li Xiaoya this time, he had probably discovered something that interested him-most likely the Red-Flame