Twenty former comfort women and bereaved family members filed the lawsuit with Seoul Central District Court in December 2016, seeking about 2.6 million dollars in damages for mental and physical pain.
The court says it posted documents on the case there in March because the Japanese government refused to receive the complaint.
The court says it can hold hearings in the case now that the complaint is considered to have been delivered through the public notice for a certain period.
The court has not announced any schedule for a hearing.
Tokyo maintains that Japan and South Korea confirmed the final and irreversible resolution of the comfort women issue in 2015.
The lawsuit could become a new source of concern for bilateral ties, following lawsuits against Japanese firms seeking wartime labor compensation.