Heya Dude! Welcome to the Best online Persistant World EVER! (I might be biased though )First piece of info you might wanna know:1421In this year, the very last recorded cross-species birth occurred. After this, no halfbreed children were born, and those who were halfbreeds themselves (Half-Elves, Half-Orcs, and other creatures of mixed blood) gradually discovered that they were utterly unable to conceive/bear children.This means that Aasimars also can't concieve anymore.The Current Layo year is 1434? I think thats right. Anyway, if you want your PC to be a Aasimar, you still can. He just has to be older then 13, which should not be a problem since no one has ever heard of a 13 year old Paladin. As for the siblings thing, sure! Say the Mom is the Celestial one, and the dad after 1421 wanted more kids and wasn't too nice of a guy and got a new wife..... Or the other way, the Dad is the Celestial one and maybe is also a paladin and dies, and the mom remarries.So! Now you need to read the stuff about [LORE]Paladin[/LORE]s, [LORE]Toran[/LORE], and [LORE]Aasimar[/LORE]s.... (I included Toran, one of the Goods, cause most Aasimar I've seen worship him, but they could also worship any of the good [LORE]Deities Of Layonara[/LORE] [but then again Toran is the "God of Paladins", along with that many of the good Gods don't use Paladins like Prunilla, Beryl, Deliar, Katia....])As for stories/Bios for your Character, just try your best. We have an AWESOME staff of Character Approvers that will gladly help you flesh out basic ideas and help fit in any slightly "out of place" stories into the Lore of the World. You need to know this though. From 1402-1420 (or around there) the WHOLE world was covered in a Dark Age, where the skies where filled with Ash, dust, and debris from a HUGE explosion, causing famine and other bad stuff... You should make sure to reference that in your PCs story since he will have grown up during that, most likely.Anyway! Phew I talk to much.... Welcome to Layo!(And to your "How many Players" question, It varies since we always have new members coming, old members taking breaks, and older players coming back when they realized this place really is the best )