Princess Guangling was killed by poison. Someone had added red arsenic into her daily herbal soup.

Just like Princess Gaomi, Princess Guangling had also delegated the power of the harem rightly after her eldest son's marriage with Zhao Taoran and started to enjoy a happy life.

Since there had been something wrong with Princess Guangling, of course, Zhao Taoran, the hostess of the Guangling King Mansion, was the first to bear the brunt.

Therefore, ...