Ju-on: Kuroi shôjo

I am a fan of the Ju-On series. Seen all four of the previous Japanese movies and all three American versions. This I must say is the worst I've seen (haven't seen Shiroi Rôjo yet). It's plain generic Asian horror. Nothing to do with the rest of the Ju-On series. Toshio appears in a scene but it's just tucked in. No relation to the plot at all. Then there's Kayako's signature noise every now and then, but also for no reason at all. I also couldn't find any climactic moments or the constantly tense ambient in the other movies. After 6 years without anything happening with the series, and now these two movies being released to celebrate the series' tenth anniversary, one would expect them to be something special. Unfortunately, they're not. Truly a sad disappointment.