Ron's mother countered the claims through Garosero Research Institute, made by Kim Soo-Hyun's agency Gold Medalist including the love letters sent to her daughter, which were described as being sent by a "close friend.

Kim Soo Hyun and Kim Sae Ron were in a relationship. However, the former actor’s agency denied alleged involvement in Kim Sae Ron’s financial struggle and death.

On Feb. 16, 2025, Korean actress Kim Sae Ron was found dead at home. The death of the 24-year-old, who had risen to popularity as a child actress, was later ruled a suicide. Reports soon began to emerge that Sae Ron had owed 700 million won (S$652,000) to her former agency, Gold Medalist, at the time of her death.