Giddens Ko is a Taiwanese novelist and filmmaker. He has published more than 60 books, many of which have been adapted as films. He writes under the pseudonym of "Nine Knives".

Changhua County is the smallest county on the main island of Taiwan by area, and the fourth smallest in the country. With a total population of 1.24 million, Changhua County is the most populous county in the Republic of China. Its capital is Changhua City and it is part of the Taichung–Changhua metropolitan area.