Many people believe that no matter how long a story lasts, there is always an ending, but not this one. Since 1985, there have been mysterious rumours about a school that went missing after a tragic accident; no one knew where it was, where it last was, and what happened. Following the incident, several students were discovered missing or dead by the public eye, and Japan has since tried its best to maintain a safe environment, but this has never been the case.

After 40 years of the incident, 300 students have gone missing, according to reports. No one goes in or out depending on how much people have suffered the loss of their loved ones, and as time passes, they move on, but those who are desperate for hope wait until someone comes along who can bring them back.

"This world hides secrets, secrets that are dire and dangerous."