[Senkusha]

I'd like to find an anime that is a "science-fiction comedy, magical girl harem".  Let's see if there are any anime like this already in existence.  Otherwise, I'm going to have to write a story!

Hmm, I can see the plot now:  In a futuristic world, the Earth is under attack by demons hell-bent on destroying the world.  It's up to a team of magical girls to save the day, ... but all the teammates are in love with one another.  It's complicated!

What other wacky plot ideas could we have with this?  (Seriously though, does an anime with all these genres exist yet?)