She was 24.
Her friend discovered the body and called the police later.
The police are investigating the cause of her death, but said they had not discovered a sign of a break-in as of press time, reported The Korea Herald.
Kim was born in 2000.
She made her acting debut in 2009.
She made a strong impression in 2010 with her appearance in "The Man from Nowhere" and the 2012 thriller "The Neighbor."
Her last work was the 2023 released movie "Bloodhounds".