Over the mountain's mist

Her name is Rhea, his is Noah. They had nothing in common before the day they woke up in a very strange monastery in the middle of the mountains, with no memories. They have to be united even though they don t know anything about each other.And this just for one scope :to cross the mountains and survive their cold.
The time isn't their friend. But who is? Who can they trust? But if they don t trust anybody, then how should they know what to do, if they can t remember anything?