Zhao Hai was stunned for a moment, but he immediately understood what Cai meant. The reason why all the major sects had gathered their forces at this time must be because the experts in the leaping Dragon World had returned. Zhao Hai clearly remembered that huding mountain had told him that because the spirit Qi in the leaping Dragon World was extremely dense, coupled with the fast flow of time, it was much faster to cultivate there than in the cultivation world.
In addition, the leaping Dragon World was not a peaceful place. There were frequent battles there. The experts in the longevity stage would have many battles. All the cultivators from the leaping Dragon World were very powerful.