In the 6th episode of the KBS drama 'The Innocent Man' that aired on the 27th of September, Seo Eun Gi (played by Moon Chae Won) finds out about Kang Ma Roo (played by Song Joon Ki) and Han Jae Hee's (played by Park Si Yeon) relationship.
Seo Eun Gi, who has fallen for Kang Ma Roo, didn't know what to do. Kang Ma Roo, who feels guilty about Seo Eun Gi's love for him, said to her when she was drunk, "Think of me as a devil." However, Seo Eun Gi was not able to remember this.
Seo Eun Gi's lawyer, Park Joon Ha (played by Lee Sang Yup), was taken back when he found out that Seo Eun Gi's new boyfriend was Kang Ma Roo. Park Joon Ha had already figured out Han Jae Hee and Kang Ma Roo's relationship. Park Joon Ha was unable to tell Seo Eun Gi himself but instead handed her an envelope and said, "Look at this later."
Later in the episode, Seo Eun Gi heads to Kang Ma Roo's house. While she was on the way, a woman asked her for a favor and hands her a picture frame. The woman said that a nearby photo studio was closing and was asking to give the picture to Kang Ma Roo. The picture frame held a photo of Han Jae Hee and Kang Ma Roo's graduation. The episode ends with Seo Eun Gi's shocked face.
