S01E01 Prologue: Nana and NANA
Nana recalls the first time she meet the other Nana on the train while traveling to Tokyo.
Ren encourages Nana to go and see Hachi, unfortunately Nana and Hachi just miss each other. Hachi meets with Shin and tells him about her pregnancy and decision to marry Takumi.
Nana Osaki and Nana Komatsu meet while traveling to Tokyo in pursuit of their respective dreams, and 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.