There are rumors that one of Kamome Academys Seven Mysteries, Hanako-kun, has gained an assistant: first-year high school student Nene Yashiro. Together, Hanako and Yashiro investigate the schools many mysteries, keeping the balance between humans and the supernatural. But in their free time, the two can often be found goofing off, engaging in various antics involving Yashiros schoolmates and the lurking spectral entities that normal people cannot see.

[Written by MAL Rewrite]