Cultivation progress slowed down towards the end of each realm.
Meng Tiange and Luo Tang had been stuck at the Grotto-Heaven realm's late stage for hundreds of years. Qin Wu, Li Guan, and Bai Yaoyue had also cultivated for a long time, yet they were still stuck at the perfected Grotto-Heaven realm. It was very difficult for them to reach the Heaven Earth realm.
Although Meng Chuan had the best overall potential in the history of the human race, he encountered bottlenecks when it came to cultivating his Grotto-Heaven realm techniques. Although he went to the World Gap every year, Meng Chuan had only reached the Grotto Heaven realm's late stage after 22 years. After breaking through, he met a conundrum.
What should be his next step? How was he to go from the Grotto-Heaven realm's late stage to the perfected Grotto-Heaven realm?