Winter is a companion of The Second Chaka. She grew up in Chaka City before being captured by the Daleks. After The First Chaka blew up the Dalek Mountain, Winter was trapped in the Dalek Ravine until The Second Chaka rescued her. From there, the two went on adventures through time and space in the TARDIS!
Winter first appeared in Chaka Who #2.12 when The Chaka rescued her from the Dalek Ravine.