Hiyori Hayama is an aspiring singer who relocated to Tokyo to launch her career. She has always cherished singing and dreams of performing on stage like her idol. Unfortunately, the entertainment world is not all fun and games, as she fails audition after audition and struggles to sell her songs. Finding herself still at the starting line, Hiyori seizes her only chance to move forward by entering Extreme Hearts. This popular event is a Hyper Sports tournament where participants compete in various sports using ability-enhancing gear for a shot at a major breakthrough. Although athletic, Hiyori’s unfamiliarity with Hyper Sports presents a challenge. Fortunately, she befriends girls experienced in different sports, and they join the tournament alongside her, hoping to see her rise to the top. Now competing under Team RISE, Hiyori and her teammates discover the unspoken rule of Extreme Hearts: all competitors must be entertainers or aspire to be one. For the members of Team RISE, facing the competition head-on is an inspiring endeavor that paves the way to discovering new interests and lasting friendships.