Garosero Research Institute claimed that the two actors had been in a relationship since 2015, when Kim Sae-ron was 15 and Kim Soo-hyun was 27. These claims were purportedly supported by ...

On May 7, GaroSero released a video explaining that A, an unknown informer, sent a voice recording of Kim Sae-ron where she was allegedly making accusations about Kim Soo-hyun.