Previously, it was revealed that Lee Jong Suk decided to cameo on the new drama because of his close relationship with MBC, the production company Chorokbaem Media who also produced 'W', plus the female lead of 'Weightlifting Fairy Kim Bok Joo' Lee Sung Kyung. 

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Lee Jong Suk will be appearing as a customer at the chicken restaurant owned by Kim Bok Joo's father. The actor also shared, "I'm happy to make an appearance on 'Weightlifting Fairy Kim Bok Joo'. Please love 'Weightlifting Fairy Kim Bok Joo' as much as you loved 'W'. I wish daebak for everyone."

The first episode is coming soon on November 16!