Kim Mu Yeol and Lee Sung Min showed support for their “Teach You a Lesson” co star Jin Ki Joo after some viewers raised questions about her acting.
Recently, Netflix Korea shared a behind the scenes video for the hit series. In the video, Kim Mu Yeol and Lee Sung Min sat down with Yoo Byung Jae and Jonathan to talk about the drama and the work behind the characters.
During the discussion, Jonathan mentioned Jin Ki Joo’s character Im Han Rim and pointed out how her speech style changes after she becomes an inspector at the Teachers’ Rights Bureau.
He said her tone suddenly became like an instructor’s voice and asked if there was a special speaking style for the bureau.
Kim Mu Yeol explained, “There is no special thing like that. We just trusted her method and left it to her”.
Lee Sung Min also shared that Jin Ki Joo prepared carefully for the role. He said, “I think we talked about that during the script meeting. As far as I know, Jin Ki Joo studied the way real female instructors speak”.
Kim Mu Yeol added that Lee Sung Min helped a lot during the table reading process, especially with ideas about how female instructors might speak. He said Jin Ki Joo accepted those ideas, continued thinking about them, did more research, and built the character in her own way.
Lee Sung Min then revealed, “I heard Jin Ki Joo even did separate vocal training because of this role.”
Kim Mu Yeol praised her effort, saying, “Her voice is really strong. When she shouted, I asked her, ‘Was your voice always this loud?’ But she said she wanted to speak loudly for this role, so she went to a vocal teacher and practiced”.
Jin Ki Joo plays Im Han Rim, an inspector at the Teachers’ Rights Bureau, in “Teach You a Lesson”. While some online users criticized her acting, Kim Mu Yeol and Lee Sung Min made it clear that her performance came from preparation, research, and effort.
Meanwhile, “Teach You a Lesson” continues to show strong global popularity. The series recorded 21.1 million views and 225.8 million viewing hours.
It ranked No. 1 in 46 countries, including South Korea, Japan, and Singapore, and entered the Top 10 list in 91 countries, including the United States, the United Kingdom, France, Germany, and Brazil.
