MOUNT ZION, Ill. (WAND) - Becoming the best has always been top of mind for 16-year-old Sun-Yoon Karas. At just nine years old, she stepped foot onto the mat for the first time, training in Jiu-Jitsu.

"It's really like art, like cooking is an art," Sun-Yoon told WAND News.

Sun-Yoon's accomplishments fill a wall inside the gym. Still, men come to the gym to see what she can do, itching for a chance to take her on.

"I got used to it, I guess," Sun-Yoon said. "I still do enjoy when they're like, 'She's a little girl, I'm not going to lose to her.' I still enjoy them being shocked, I guess."

Now, as one of the best in the country, maybe even the world, Karas is starting free and anonymous self-defense classes for women, with the help of her dad.

"We've met people that live in million-doll

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