Berniece is a character from the play "The Piano Lesson" by August Wilson. She is the sister of Boy Willie and the daughter of Doaker, and she plays a crucial role in the family dynamics surrounding a valuable piano that holds deep emotional significance. In the story, Berniece struggles with her family's history and the legacy of their ancestors. She is protective of the piano, which symbolizes their heritage, and her character represents the conflict between preserving the past and moving forward in life.