“That night, if Nana hadn’t been with me,
“I would have thrown myself into the Tamagawa River and sunk to the bottom.”
A heartbreaking story of growth for two girls with the same name, 'Nana'!

First of all, Nana Komatsu decided to become independent by working part-time.
The store where he was working part-time closed down, forcing him to change jobs, but he found a job at a publishing company and worked hard.
Meanwhile, Nana Osaki's desire to dedicate her life to singing burns even brighter with the arrival of band members Nobu and Yasu to Tokyo and the addition of new member Shindo.
Meanwhile, Komatsu Nana's lover, Shoji, starts a relationship with Sachiko, a coworker and art school classmate.
Shoji is in pain, but he eventually decides to tell Nana…?!