Why are the living forbidden to be traitors?

Taboo for the Living, also known as Ghost Hunting Thirteen Descendants and Descendants of Mountains and Seas, is a horror novel written by Nine Thieves. In the novel, the traitor is a classic, and the Millennium ghost is an excuse. Although there are thousands of ghosts, but fortunately, no one has been harmed. Red Smoke, the head of the Dragon and Tiger clan, used it to confuse people. Red smoke is a big boss, and An Rushuang has finally come back to life.