Shahana Naana is a fictional character from the anime series "Shoujo Shuumatsu Ryokou" (Girls' Last Tour). She is portrayed as a mysterious and enigmatic figure who occasionally appears throughout the series. Shahana is known for her deep wisdom and calm demeanor, often providing guidance and insight to the main characters, Chito and Yuuri, as they navigate through a post-apocalyptic world. Her role serves as a beacon of hope and understanding, offering philosophical perspectives on life, existence, and the remnants of human civilization.