Fifth-year elementary school student Nao comes to an abandoned hospital with two of his friends as a test of courage.
They say it had been abandoned after a nurse caused the death of multiple patients due to a grave error in her treatments...
Fully aware of the weight of her actions, she killed herself by jumping off the roof, but unable to move on, her spirit is said to still be roaming the vicinity.
Just how scared is Nao going to get while wandering the halls of this hospital...?!

[Translated from Freem!]