MirageDemon
A prophecy has been told from StarClan. Listen well.
The seasons will change, and it will be an endless leaf-bare. The plants will all die, and slowly, you will to. Unless you can find the children of the Moon, Sun, and Stars, an endless night awaits you. But beware the leaf that is not real.
The first thing Luna knows is cats staring at her. Supposedly she's part of prophecy and is going to save them all- but what does Luna know? Nervous and confused, she starts thinking about leaving- and flees, once she hears some information not for her ears.
Soon after, a loner named Bright shows up on MistralClan territory, claiming to come from beyond the Twolegplace. He immediately decides to join MistralClan. A chance to be with a beautiful blue she-cat? Sign him up!
Riverpaw has always felt lost and alone in her clan. Her mother and father were dead, and her uncle seemed to be the only one close to her. When she was a kit, a RoseClan cat tried to steal her- but passing through a Twoleg's house, a fire starts. Grabbed by the neck by a Twoleg and breathing too much smoke, she developed bad lungs. Soon, a new thing is pushed her way- one more reason to be different.