SEE ALSO: Goo Hye Sun shares updates on her passionate graduate school life at KAIST

The actress let her long hair down for a causal pictorial that brought out her artsy personality and deep expressions, which is one of her strong points as an actress. 

Goo Hye Sun shared, "I needed time for people to forget my acting pattern and image that I've done so far. The way I speak and my tone of voice drastically changed over the past two years. My personality changed, and I wanted to give a change to my visuals as well. It took one year for me to grow out my hair this long. I wanted to enter my thirties well."

She also spoke more about her former roles. "All the characters in my previous dramas didn't have experience in love. I purposely tried to stay away from melodramas. Although 'Boys Over Flowers' is a love story, I haven't tried acting in a heavy romance. This drama is what you call a melodrama."