"What's important to me right now is the Transcript that came out yesterday. It's a B+. I'm in shock and I'm drowning in despair," Ku hye-sun said on her personal social media account on the 18th. Ku hye-sun then lamented, adding, "Hehehehehehehehehehehehehehehehehehehehehehehehehehehehehehehehehehehehehehehehehehehehehehehehehehehehehehehehehehehehehehehehehehehehehehehehehehehehehehehehehehehehehehehehehehehehehehehehe" HB said, "Ku hye-sun separately filed a complaint with the Seoul Central District Court on February 18, 2020, claiming money from HB to pay for the YouTube video material and claiming copyright of the video material announced on the HB channel. However, on June 15, 2023, the judgment of the Seoul Central District Court Dismissed all of the above claims of the plaintiff (Ku hye-sun) ". The dispute between Ku hye-sun and HB began in 2019 when she went through divorce proceedings with her ex-husband, actor Ahn Jae-hyun. At that time, the two of them were having a meal at HB, and Ku hye-sun complained that HB was only doing business in the position of Ahn Jae-hyun before and after the breakup. In response, Ku hye-sun notified HB of the termination of the Exclusive contract in August 2019. However, the court Dismissed Ku hye-sun's cow, saying that it was not enough to admit that the effect of the agreement had been extinguished retrospectively and there was no evidence to admit it. Ku hye-sun released Ku hye-sun's Piano New Age Best Album 20th' in May of last year to celebrate its 20th anniversary. In addition, Ku hye-sun is active in various fields such as film director, production, planning and screenplay.