Winter arrives. As Doppel plots revenge against Shurako, a Snow Woman in a swimsuit appears before him.

When Mechako asked me, I went around the school asking around to find out what people were afraid of. Based on that information, Mechako came up with the ultimate ghost. The ultimate ghost?! Don't bring that up in front of me! As if that wasn't bad enough, weird ghosts have been showing up one after another today...! By the way, who is that high school girl in a sailor uniform who suddenly called out to me? It seems like she knows me...