Gyeongseonghakyoo: Sarajin Sonyeodeul plot
"The lost girls, suspicious school, and abnormal changes..."
Korea, 1938. Joo-ran is a talented girl who is transferred to the Gyeongseong Boarding School near Keijyo, later Seoul. But the Gyeongseong School is not a normal school. The location of the school is secret and its existence is not even known to the public, but life seems to be no different from other boarding schools. Coincidentally, Joo-ran finds out that there is a girl with the exact same name, but immediately after the curious Joo-ran looks for her, the girl disappears. Convinced that something isn't right with the school, she sets out on a dangerous investigation to uncover the secrets.