Welcome to SASF. Basically Sol died, there were three wars, blah blah blah, there were experiments that lead to the creation of demons, who are half-human half-angel...

Now we have four traumatized archangels (five if you include Luna) who enjoy drinking unhealthy beverages and gambling to distract themselves from the past. (i know it's depressing.)

Anyways, just enjoy yourselves, because this is gonna be a long, long ride.