Hoverlab, a South Korean news commentary site on YouTube, claimed that the actor and the late actress Kim Sae-ron had been in a six-year relationship since she was 15 years old.

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.

Kim Soo Hyun's agency has finally addressed the rumours about his relationship with late Korean actress Kim Sae-ron.After the death of the High School Love On star’s in February, some pictures and letters surfaced on the internet