In "Glorious Temptation" Choi Kang Hee learned of Joo Sang Wook's identity. No, it was a misunderstanding.
On the 11th episode of MBC Monday/Tuesday drama "Glorious Temptation" (scritp Son Young Mok, Cha Yi Young, director Kim Sang Hyup, Kim Hee Won) broadcast on November 9th, Cha Eun Soo (played by Choi Kang Hee) misunderstood that the person who had approached Kang Suk Hyn (played by Jung Jin Young) to take away the seating price was Jin Hyung Woo (played by Joo Sang Wook).
Eun Soo saw that the time that she received a call overlapped with the time that Hyung Woo was on the phone. With that, she was suspicious. Afterwards, she was following a voice that had been disguised with an anonymous caller. In the end, she faced the person that had been calling right behind her. Hyung Woo had been recording the "caller man"'s voice.
Hyung Woo had always come in front of her at the most scary moments and said that he would take care of her. With that, Eun Soo was startled. As Hyung Woo who had a hat on came eye to eye with Eun Soo, he was startled. With that, there was a sense of misunderstanding and distrust between the two.