On this day, Ku posted on her personal Instagram account a letter and text message about their divorce. Ku Hye Sun shared her letter which she shared with their agency's representatives, HB Entertainment.

Ku Hye Sun also added a caption saying, "This is a text message (conversation) sent in August, and it was already October."

"The company's involvement in Ahn's divorce has undermined my trust. The contents were in katok, (slang for KakaoTalk) not Dispatch's forensics. I recorded what I and Ahn had shared about this and submitted it to the court." She then added.

She also expressed her disappointment with her agency by saying, "I am currently working alone without the help of my management. I wonder why two months ago, Mr. Ahn helped me to join the company. I have been writing a couple of letters for two years. Ahn Jae-Hyun's company, which re-edited our conversations to his advantage and reported it to the dispatch, is strangely HB Entertainment, the same company as me. I hope HB Entertainment that violates the actor's personality will be terminated soon. ", accusing that the conversations of the actress and Ahn submitted to Dispatch is actually re-edited and some message might be omitted or false information was added.

On the other hand, the revelation of Ku Hye Sun overlapped with the happy news from Ahn Jae Hyun, which on the same date, his Korean drama, "People with flaws" announced its release date.

Fans and supporters of the former couple were divided. Since August 19, Actress Ku Hye Sun shocked the whole entertainment field for revealing their divorce, where she posted on her SNS, "My husband, who is converted to boredom, wants to get a divorce and I want to protect my family. Ahn Jae-Hyun's affairs were cited as the reason for the divorce.

She said, "I'm so confused because I've heard so many drama actresses and inquisitions in my ears."

The current leading lady of Ahn Jae Hyun in the drama, Oh Yeon Seo was also accused as one of the reasons for the breakup but Celltrion Entertainment, Oh's agency, immediately denied the allegations and warned everyone who will go to press their artist will be punished.

Meanwhile, the divorce papers of Ahn and Ku were still on process.