Kamen Rider Decade

The Destroyer of Worlds (1x31)

Air date: Aug 30, 2009

As Blade, Kiva, and Hibiki's Worlds continue to merge, Super Apollogeist has captured Natsumi, sending a challenge to Decade. But a new Kamen Rider Blade has appeared, Kazuma Kenzaki, and he says that those who ally with Decade will disappear because of it.