Fuuka is a sequel to the 2004 manga Suzuka. The story follows Yuu Haruna, a loner and an avid Twitter user that made a promise with his childhood friend Koyuki Hinashi of starting a band. One night, on his way to buy dinner, he stops to take a photo to upload to Twitter. A strange high school girl named Fuuka Akitsuki accidentally bumps into him and mistakenly believes that Yuu is trying to take a photo of her panties, which causes her to smash his phone. Fuuka leaves behind a CD, which Yuu returns the following day. Appreciating Yuu’s personality, Fuuka starts a relationship with him, but this is complicated when Koyuki, now a popular idol, contacts Yuu on Twitter and invites him to attend her concert.