What did you just say about my jaeger?! (JJBA × Pacific Rim: The Black)

Josuke and Okuyasu are a bizarre pair of friends to say the least. This rears it's head when the friends mess with a strange cube that was given to them by Jotaro to take care of. One thing leads to another and the cube whisked them away to another world entirely. In this world giant monsters fight giant robots. Worst of all, nobody knows what stands are. Together, they assist two siblings on their quest to find their parents and make it out of The Black.