4 of Hearts

Now this may appear to be a complete science-fiction story on the outside, but it has a deeper meaning inside.
This is the story of how the last known survivors of four sets of young sibling beings from a doomed planet were separated by fowl means by the evil antics of a manacle intergalactic warlord and his messed up and backstabbing crew as one set of four ended up on Earth and the other set of four were left to find their lost surviving siblings out somewhere in the vast reaches of space.
In a two-thousand-year span, the two groups grew from acquaintances to a family as they learned that a family was stronger than an individual or just a team.
The story goes from their past to the present as they figure out on how to survive in their new settings till the two families reunite after two thousand years apart as they join forces to protect earth and the universe from the same evil that has destroyed their home world.
You will see just why these beings are considered "the most dangerous beings in the universe," and it's not the fact that they are evil, which they are not; it's because evil knows that these are not the ones you want to mess with!
And you will see that there is a society out in the stars that might appear to be of a far, far, far away intergalactic kingdom, but it's nowhere near intelligent as Star Trek and nowhere near mystifying as Star Wars.
And above that, you will learn what a Heart is, and it has nothing to do with expressing your love for someone or the main artery inside you; it's an institution that works to protect others from any and all forms of evil.