Ai yazawa's cartoon "Nana, another me in the world" tells the story of two girls who are both 20 years old and also named "Nana". Their lives changed after they met on the train to Tokyo. Ai yazawa's unique concept of love and world outlook has won the love of people from different classes, and has sold more than 20 million copies so far. The film version will also be released in September. Oosaki Nana, the lead voice of the band Blackstone, is the soul of the comic book, starring a new generation of Japanese singer Mika Nakashima. Mika Nakashima even cut her iconic long hair short for the film, while Nai Nai Komatsu, another heroine who is supreme in love, is played by Aoi Miyazaki.