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...

During day two of Rock Horizon, Yuzu's concentration is shattered when he spots his mother in the audience. After a quick save from Nino, he leaps from the stage to confront her Later, after reevaluating his life and the role In No Hurry plays in it, Yuzu gathers the band to make a shocking announcement