Two ostensibly opposite women, both named Nana, become roommates in Tokyo and grow inseparable. However, their relationship is jeopardized as the harsh realities of adult life take shape.
Nana Osaki is a guarded and ambitious young woman with a strong will and a rough past. She is the vocalist for a punk band called Black Stones and she desires fame and recognition more than anything else. Nana Komatsu is an outgoing and flighty young woman with a weak will and a stable past. Her life revolves around her desire to find love and marriage. The two meet for the first time while traveling to Tokyo - in pursuit of their respective dreams - and they later decide to be roommates. Although drastically different people, the two become very close and together they find out if their biggest dreams have room for their best friend.

เธอคนหนึ่งเป็นศิลปินพังก์ร็อกนักล่าฝัน ส่วนเธออีกคนพยายามไขว่คว้าหารัก หญิงสาว 2 คนที่มีชื่อเหมือนกันต่างเดินทางมาโตเกียวเพื่อเริ่มต้นชีวิตใหม่