According to TV Report, on the evening of March 10, Garosero media channel shocked everyone when it exclusively broadcast news, Kim Soo Hyun had been dating Kim Sae Ron for 6 years, and the relationship began when the late actor was only 15 years old, Kim Soo Hyun was 27 years old.
Garosero's newsletter aired an interview with Kim Sae Son's family to confirm the information. At the same time, the late actor's family provided Garosero with a heart letter that was said to have been written by Kim Sae Ron but had not been published.
The letter was written on March 24, 2024 - a period of time after Kim Soo Hyun's management company - Gold Medalist (also Kim Sae Ron's former management company) - denied the rumors of the two dating.
Previously, on March 23, Kim Sae Ron posted an intimate photo with Kim Soo Hyun on her personal page and did not provide any other information. However, many viewers suspected that the two artists had a love relationship, forcing Gold Medalist to speak up.
At that time, Gold Medalist said: "Kim Soo Hyun and Kim Sae Ron did not have a love relationship. The photo was taken a long time ago, possibly during the time when the two were still managing the same company. We don't know what Kim Sae Ron's intention was when posting this photo."
According to Garosero, after Gold Medalist's move, Kim Sae Ron wrote a letter to clarify everything, but in the end she did not post it.

The letter of encouragement that is believed to be from Kim Sae Ron states that she and Kim Soo Hyun were once lovers.
The photo Kim Sae Ron posted was taken in 2016. The two began their relationship on November 19, 2015 and lasted until July 7, 2021.
This letter shared that at the time of preparing to re-sign the contract with his ex-lover's company (Gold Medalist), Sae Ron had learned more about other companies. Finally, after the discussion, Kim Sae Ron refused other companies to re-sign with Gold Medalist.
During the time considering an extension, Kim Sae Ron has worked hard, but she has never received any legitimate compensation for those jobs.
Unlike a regular re-signing contract, Kim Sae Ron agreed to sign a contract extension agreement on the condition of a financial loan.
When the renewal period came, Kim Sae Ron contacted the management company and Kim Soo Hyun, but both of them cut off contact. The company then sent her a threatening notice stating that the contract was not extended.
"In May 2022, my exclusive contract with Gold Medalist ended. Gold Medalist's statement that they "discerned my intentions at all" was inconsistent with their actions," Kim Sae Ron is believed to have written at the end of the letter.
In an interview with Garosero, who is said to be Kim Sae Ron's aunt, said that Kim Sae Ron posted a photo with Kim Soo Hyun on his personal page because the actor did not answer the phone.
Kim Sae Ron was found dead at his home on February 16, 2025, and February 16 is also Kim Soo Hyun's birthday.
Regarding this issue, on the evening of March 10, Kim Soo Hyun's management company spoke up to deny the information provided by Garosero, affirming that what Garosero provided was fabricated.
Gold Medalist emphasized that they will take strong measures against Garosero's dissemination and dissemination of false information.
In response, YouTube channel Garosero claimed that their show was broadcast based on documents and interviews provided by Kim Sae Ron's family.
Garosero said that perhaps on March 11, a complaint will be filed against Kim Soo Hyun over a matter related to a minor, because he dated a female high school student.