The calm night just descended on the Kimura Temple. The people currently there were all having their own relaxing moments they were enjoying with their loved onse as a particular space-time distortion opened.
The distortion wasn't promissing anything good, as the very moment it opened several shady individuals passed trough it to this side, a whole another universe, so similar, yet so unimaginably different. The individuals soon scattered around and started their reconnaissance of a certian group of individuals, ready to give the final signal to their companions eagerly waiting on the other side of the 'Gateway between two worlds'.
(Folks, here you go. I make it as vague as it is to let you introduce your players as freely and easily as possible. You roll guys and have fun!)