Delilah is an ordinary school girl who accidentally discovers an old mansion on a rainy night. As her exploration in the mansion continues, she finds many mysterious phenomena that can't be explained. In this mansion covered by ashes, what's the secret hidden deep underground?

Delilah is an ordinary school girl who accidentally discovers an old mansion on a rainy night. As her exploration in the mansion continues, she finds many mysterious phenomena that can't be explained. In this mansion covered by ashes, what's the secret hidden deep underground?