Yuu Haruna and his siblings move to Tokyo due to their father's job transfer overseas. While scrolling through Twitter on his way to buy dinner, he is accused of taking upskirt photos by high school student Fuuka Akitsuki. Furious, she breaks his phone and slaps him before leaving him on the ground. Coincidentally, they attend the same school, and unlike most teens, Fuuka doesn't use a cellphone and plays music through a CD player. They end up spending more time together and decide to form a band with their friends in the hopes of entering the music industry. Fuuka's involvement opens up a new chapter in Yuu's life in Tokyo.