In this charming story by Sophie Bellier, a young boy's world is turned upside down by the arrival of his new baby sister. He wonders, what's the use of a little sister who can't play, talk, or do anything fun? This delightful book gently explores the common feelings of jealousy and confusion older siblings might experience. Through tender moments and relatable situations, the boy slowly discovers the unique joys and profound love that come with having a sibling, learning that his little sister is the most precious gift of all. It’s a perfect tale about family, love, and acceptance.