Hayama Hiyori is a high school student and professional singer. Unable to succeed commercially, her agency terminates her contract. Unwilling to give up, she decides to participate in Extreme Hearts, a sports event for musicians and performers.

RISE faces off against Smile Power in a game of basketball. They've done their homework and accurately identify RISE's weakness. Can RISE win and perform their first on-stage song?

It's the final showdown between RISE and May-Bee. Can RISE pull off a miraculous victory against their opponent, the reigning champions of Kanagawa prefecture?