Li Zhirui was not foolish; how could he not see that these two had a good relationship?
The conflict erupting before him was likely intended to draw him out, to personally confirm Li Zhirui's strength.
As for whether they would take over Mount Wanxian upon discovering Li Zhirui's relatively weak strength, that was certain!
However, Li Zhirui was quite curious about the origins of these two.
Currently, the Cave Abyss Sect is fighting on two fronts, dealing with the Demon Cultivators to the west and still battling the Sea Clan to the east. The situation is quite tense, so they shouldn't be sending people to test the Li family.
After all, the Cave Abyss Sect could hardly open up a third battlefield, right? Even with their strength, it's very easy to deal with the Li family, but not right now.
Besides, even if they took Mount Wanxian, what use would it be to the Cave Abyss Sect?