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According to multiple broadcast insiders, the mentioned stars have been cast for the follow-up drama to 'Empress Qi'.

'Triangle' is the work of PD Yoo Chul Yong and writer Choi Wan Kyu and portrays the story of three brothers who are born from a wealthy family but unfortunate circumstances lead them to live separate lives and reunite after growing up.

Lee Bum Soo, Song Seung Hun, and Siwan are set to play the three brothers from oldest to youngest, respectively. If true, this will also make Lee Bum Soo and Song Seung Hun's reunion in two years since 'Dr. Jin'.

However, regarding this report, the stars' agencies as well as MBC have revealed that while casting offers and drama synopsis have been sent out, there haven't been specific discussions yet to confirm the casting.

Stay tuned for any follow up news to come!