Actor Yoo Ah In is assertive but not aggressive. Although he used to be the icon of aggressive teens, currently his ability to express what he really wants to the public is not "aggression" but "courage."

Gang Chul, a role Yoo Ah In was given in his recently released movie "Tough As Iron" (Directed by An Kwon Tae), is similar to the actor's real life image.

Gang Chul is an aggressive yet honest person. To borrow Yoo Ah In's expression, Gang Chul is nicer than any ordinary person. He makes money the honest way and takes care of his mother the honest way, but couldn't help but become aggressive in this though world.

Yoo Ah In said, "Gang Chul isn't an aggressive person. He only has the amount of aggression that comes from the tough world. He is the nicest kid. I think it'd be really hard to live as nice and diligently as him, in the worst-case scenario.

Movie "Tough As Iron" is about a Busan man, Gang Chul, who faces the tough world with his unique sense of optimism. In addition to Yu Ah In, Kim Hye Suk, Kim Jung Tae, Lee Shi Un and Jung Yu Mi starred in the movie. "Tough As Iron" is to be released on November 2, 2013.