In this chapter, we learn that Luo zheng has won the hearts of all the warriors who have fought at the battle of the underworld. He has also been invited by the elder of the sea realm, master situhaotian, to visit the sacred spot of purple heart, which is the center of the universe. We learn that the elder wishes to invite the young hero to the place, and that he has heard a lot of flattering things about him. He is sorry that he did not accept the invitation, but it is not because he does not wish to, but because he had many unfinished business there back then. He tells us that he wants to become a hero like him when he grows up. Tip tap asks about the origins of the cave, and the elder explains that although they do not know how it was created, they have concluded that the cave was an ancient battlefield, which should have been the home of the strongest warriors in the upper world. He says that the entire cave can be divided into three zones: the outer zone, the inner zone and the core