What is the clue that connects the police dormitory bombing case & Keihin canal murder case with the corporate bombing case 17 years ago? Detective Tamori chases a mystery!

At Onin High School, a trio of schoolgirls who battle paranormal entities face off against "erotomaniac spirits" that have possessed the female students with insatiable desires.

When the Imagin and Kohana take a trip to visit Ryotaro and Airi, they are attacked by the legendary Ghost Train, and onboard are two Imagin and the evil Kamen Rider Yuuki, who is none other than Ryotaro! But when all hope seems lost, a blue DenLiner appears, delivering someone claiming to be Kamen Rider New Den-O! Just who is he, and can he help everyone save Ryotaro and save time once again?

Harue Hashimoto is a popular mystery writer. She always talks about murder tricks to make it look like an accident with her friends Mayumi Tsukasa, a singer, and Miki Kitamura, an editor. Miki has a habit of saying that she wants to kill her boyfriend Kyosuke Takamaki.