Nana by Ai Yazawa is a josei manga and anime detailing the lives of two young women with the same name navigating love and music in Tokyo, whose intertwined fates are marked by dramatic personal struggles. The story, famously left on indefinite hiatus due to the creator's health, features flash-forward scenes depicting a future where one Nana is missing and the other continues to live with the consequences of their shared past. The Lessons "Nana" Teaches - Scene+Heard