The story of the Ruan Clan arouses much reflection, yet it contains a fatal flaw.
It is not that Jiang Li used a long sword to fight ghosts, but the existence of the fearsome ghost, Ruan Clan.
There are no ghosts in Nine Provinces.
Many folk tales circulate about ghosts, such as the seventh day after death, the Festival of Hungry Ghosts, paper-burning rituals, and unresolved affairs between the living and the dead, and so on. Even some grand cultivators believe in these things. They have never seen ghosts, but precisely because they haven't seen them, they find the invisible ghosts terrifying.
Jiang Li knew clearly, however, that no ghosts would appear in Nine Provinces.
He had once asked Everlasting Immortal Elder, Sumeru Old Buddha, and Brahma Pagoda. Their conclusions were all the same.
Ghosts dwell in the Underworld; there are no ghosts in Nine Provinces.