Sunnykit is born to Whitestar and Cinderstream, with her brother, half-brother and half-sister: Rainkit, Snowkit and Mosskit. Her father, Whitestar, was dead, and he didn't know that. She and her brother believed Thunderflash, the father of Mosskit and Snowkit, was her father. When they where apprentices, Cinderstream told them. She and her brother were shocked first, but forgived her. When they and Snowpaw became warriors and recieved their names, Sunnyfall, Rainpool and Snowtalon, Mosspaw was an medicine cat apprentice, and taked them to the Shiny Cave to meet their father. They shared tongues, and Mosspaw became Mossleaf. She did get a mate, Windbreeze, and one kit, Blackkit.