Humans think that the world has been freed of supernaturals.  They think that the Earth has been wiped clean of fantasy creatures.  They think that sentient non-humans were wiped out during the Dark Ages.

They're wrong.

The supernatural beings have been hiding among them for decades.  The banshee, the kitsune, the werewolves, the shapeshifters, the elementalists, and so many more; if they can blend in with the humans, they're still alive.  Unfortunately, any creature unable to assume a human form has either died or gone into hiding in the few wild, unexplored places in this world.
We're going to find them.  We, those who were able to take a human guise and hide in plain sight.  We will find the few remaining fantasy creatures and strike back against our human killers.  We will create a place for ourselves, free of human taint.  And if the humans try to fight, if they will not leave us in peace, we will terminate them.  We will do whatever it takes to live in peace and freedom.
However, until we can band together and fight, we will have to be careful.  It's almost impossible to tell a supernatural apart from a human - by sight, at least.  Not all of us have the keen senses of a werewolf.  Our freedom will be hard won, but we will do it.  Though it take use a year, ten, a hundred, we will not fail.  We cannot fail.

Give us freedom, or give us death; we will accept nothing else.

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So, our characters will just live for a while, then slowly begin to find each other.  Then, when we have enough supernaturals who know each other, we can start the plot written above.

What d'you think?