What is the reason for intentionally listing real estate at a low price?

The actual transaction price of our apartment is over 2 billion KRW, and the asking prices are around 2.2 to 2.5 billion KRW. However, there is a listing priced at 1.95 billion KRW; at that price, a deal should have been made by now, but it keeps failing to sell. Even the real estate agents say that although the owner listed it, no transactions are happening...