Fire and Ice : Total Opposites

Phoenix and Wynter had normal lives like humans would.But there was one 'little secret' that their parents hid from them. They never actually told them about their secret. They found out about it by themselves.
Okay, maybe not by themselves, because there would always be that one person to ruin it all. And that person is called Logan, a supernatural hunter who pushed Phoenix and Wynter into a portal to another world, the supernatural world.
But hush now,Phoenix and Wynter don't know about this yet.