To meet her boyfriend Shoji, Nana Komatsu travels to Tokyo. She happens to be sitting next to Nana Osaki on the train, who is also traveling to Tokyo to pursue her ambition of becoming a musician. She is aiming to find success in Japan, where her boyfriend Ren plays guitar in the band Trapnest, where her punk band Blast is now on tour. They instantly form a bond despite sharing the same name. They run with each other once more in Tokyo while looking for an apartment. They eventually decide to move in together, which deepens their friendship and allows them to navigate their romantic, personal, and professional journeys together.
