Nana is a Japanese anime series based on the manga created by Ai Yazawa. It follows the lives of two young women, both named Nana, who meet by chance on a train to Tokyo. Despite their different personalities and backgrounds, they form a deep friendship and navigate the challenges of love, ambition, and personal growth. The anime explores themes of friendship, romance, and the struggles of pursuing dreams in the music industry. It features a diverse cast of characters, including musicians and artists, and highlights the emotional complexities of their relationships. The series is known for its realistic portrayal of life and its engaging storytelling.