Ha Ji Won's North Korean dialect in MBC's Wednesday-Thursday drama 'The King 2Hearts' is a hot issue among viewers. The realistic dialect that seems so natural for Ha Ji Won is surprising audiences.

The fact that Kim Hang Ah (Ha Ji Won) has a real model is attracting more attention. One representative of 'The King 2Hearts' stated, "Currently, Ha Ji Won's North Korean language teacher is Kim Hang Ah's role model."

In order to act as Kim Hang Ah, Ha Ji Won has been receiving North Korean language lessons from North Korean defector Baek Kyung Yoon. Baek Kyung Yoon is already famous as a North Korean language teacher among Chungmuro representatives.

Baek Kyung Yoon has also taught actors for films 'Welcome to Dongmakgol,' 'Berlin,' and 'Spy.'

She revealed, "Ha Ji Won is not someone who just reads the script. She asks which dialogues to use in which situations, and attempts to portray those situations."