So I just currently have a basic idea about a bunch of fighters from different universes getting 'invited' to be part of the team that watches over this newly-founded inter-dimensional city. It'll mostly be focused on character interactions up in their HQ, including battle training against one another. As for actual battles, there could be a group of OC villains, or even this thing where villains from various fandoms find their way in and decided to work together to wreak havoc in this new place.

I guess it'll probably be sandboxish, with a rather lighthearted theme. Comments? Suggestions? Advice?
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Cinix City - A thriving, bustling metropolis which grew to be as such in an amazingly short span of time. For years, it has offered comfortable lifestyles and low crime rates to its residents. That was, until the recent months when individuals with strange abilities have started to appear without explanation and are threatening the safety of civilians.

Through the deployment of agents to get to the bottom of this odd phenomenon, the mayor of Cinix has acquired knowledge of technology enabling inter-dimensional travel, though, its source still remains a mystery. However, the duplication of the discovered technology is now allowing Cinix agents to expand their search for the much-needed heroes to patrol and defend their city.