Pirate: I am Luffy's older sister

Story of: Pirate: I am Luffy's older sister

The new book "Hokage: I Became Naruto's Sister" is already a joke. Why do other people travel to the world of pirates with a crazy start, and I am a child template? That's all for a child, why did I become Luffy's older sister? Hey! This is a story of a traveler who has become Luffy, Ace, and Sabo's sister, trying to survive in the world of pirates.