
Seo-yeon Kang: A music teacher at Yeondu High School.Sung-tae Jang: A graduates of Yeondu High School.
Soo-jin Jung: A graduates of Yeondu High School. The characters that appear in each episode are different. Tonight, they were being swallowed up by the school once again." To reveal the truth of that day, To find each other’s lies, They set forth to the school. But the girl wasn't the only one who came into school at the time. A girl among them went towards the closed school at late night to escape from the yoke of her nightmare caused by the death of Sung-ah. People didn't believe in ghosts and care about it, but a few of them recalled the memories of the past again. "A rumor spread among the students that Sung-ah's ghost had appeared in Yeondu High School where the accident occured on March 14.
5.7 Trailers revealed and release on Steam.5.4 Suspend Swansong project and announced New projects.