While Bang Eun-jin directed Perfect Number, which film was her directorial debut?
Bang Eun-jin:  Bang made her feature directorial debut with "Princess Aurora" in 2005, and has since directed "Perfect Number" (2012), and "Way Back Home" (2013). Perfect Number (film):  Suspect X) is a 2012 South Korean mystery-drama film directed by Bang Eun-jin.
i don't know