Early in her career she wrote .
Early in her career she directed several short films , notably Yu - jin 's Secret Codes which won the Grand Prix at the KNUA Graduation Film Festival and the Women 's Film Festival in Seoul in 1999 .
Early in her career she wrote and directed several short films , notably Yu - jin 's Secret Codes which won the Grand Prix at the KNUA Graduation Film Festival and the Women 's Film Festival in Seoul in 1999 .