Gegege no Kitarou: Kitarou no Yuurei Densha

After receiving a zero on a mathematics test, Santarou desperately wishes he could return to the previous day and try again. Nezumi-Otoko tells him that Kitarou may be able to help, leading the boy toward a supernatural solution that sounds much easier than it truly is.

Santarou soon finds himself aboard a ghostly train where ordinary rules no longer apply. The strange journey forces him to confront the consequences of wanting to escape his mistakes instead of accepting them.