A series of murders surrounding a clan, a new development――!! As the wealthy family at a hot spring inn in the mountains is being killed one after another, Hinako, Chiyo, and Narumi discover roses growing in the mountains. The strong scent of these roses is the same as those cultivated by the cult "Pure Rose"……. Narumi finds a woman collapsed there. The woman murmurs "Onee-chan" and directs an extraordinary power towards Narumi and the others… The "Yamazukami family" arc finally concludes――.