Son Hyun-joo Coma Truth & Yoon Yoo-sun's Dark Turn

Lee Joo-myung declared herself Son Hyun-joo's youngest daughter, halting Jeon Hye-jin's succession to the chairmanship. In the sixth episode of JTBC's 'Rookie Chairman Kang,' aired on the 14th, Kang Jae-kyung (played by Jeon Hye-jin) was becoming the frontrunner for the next chairman position. Meanwhile, Kang Jae-seong (played by Jin Goo), facing a crisis, confessed to his wife Na Eun-se (played by Lee Seo-an) that Kang Jae-kyung had put his father, Kang Yong-ho (played by Son Hyun-joo), into a coma. Seizing this weakness, Na Eun-se took office as the executive director of Mulsan, effectively acting as regent.

Hwang Joon-hyun (played by Lee Jun-young), possessed by Kang Yong-ho's spirit, headed to the site with his stepsister Kang Bang-geul (played by Lee Joo-myung) and Park Bong-gi (played by Lee Seong-wook) to reclaim the Yulivia mine development rights from Na Byeong-mo (played by Jeong Jae-seong). They infiltrated an employee hotel belonging to Na Byeong-mo's side to obtain documents and learned that the Yulivia Prime Minister was about to be scammed by Chairman Kang in a lithium business deal. Infiltrating a party, they revealed the truth to the Prime Minister just before the contract signing, causing the deal to be canceled. However, thanks to Kang Bang-geul's quick thinking, the contract was successfully secured.

Meanwhile, Min Seok-do (played by Kwon Hae-seong) began to suspect that his wife, Kang Jae-kyung, had attempted to murder her father-in-law, Kang Yong-ho. Kang Jae-kyung, solely focused on succeeding to the chairmanship, said, "Father is alive. Now, all that's left is for our family to be happy." However, this conversation was overheard by Kang Yong-ho's wife, Jo Sun-hee (played by Yoon Yoo-sun).

Jo Sun-hee was enraged when she witnessed her son-in-law, Min Seok-do, administering sleeping pills to Chairman Kang in his hospital room. Min Seok-do pleaded, "If it wasn't me, someone else would have done it. I can't bear to see father-in-law deteriorate further." Having learned the entire truth, Jo Sun-hee declared that she would announce her support for Kang Jae-kyung's succession at the board meeting, as requested by Kang Jae-kyung, in order to overturn the situation.

On the day of the succession announcement, when Kang Jae-kyung requested the nomination of the next chairman, many people raised their hands. However, Jo Sun-hee, standing on the podium, declared, contrary to expectations, "I oppose President Kang Jae-kyung's appointment as chairman." She added, "Chairman will wake up soon. I've even heard news of his improvement," and proposed that the chairman position remain vacant.