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.

The futsal match against the team Sparkle is the first time Hiyori ever competed in a sport, and she struggles to keep up. However, Sumika and Saki, who had secretly registered themselves as players in RISE, make a surprise appearance.

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?

Hiyori meets Michelle and Ashley from Snow Wolf, RISE's next opponent. They immediately become friends, and vow to do their very best in the upcoming volleyball match.

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?