Nino Arisugawa, a girl who loves to sing, experiences her first heart-wrenching goodbye when her beloved childhood friend, Momo, moves away. And after Nino befriends Yuzu, a music composer, she experiences another sad parting! Luckily, Nino reunites with Momo and Yuzu in high school, but things haven't played out the way anyone expected...

When In No Hurry's Rock Horizon performance ends in a whirl of frantic passion, does Nino's voice reach Momo? And with the school festival coming up, the Pop Music Club prepares for its first performance in a long time...with things between Haruyoshi and Miou suddenly heating up!