Meet Arisu Yamabuki, heir to a powerful conglomerate who seeks perfection in life. He listened to the radio program Midnight Heart Tune until the host, Apollo, vanished. Upon enrolling at Furin High and joining the broadcasting club, he meets four girls hoping to make a living off their voices. Arisu promises to make their vocal dreams come true and honor the promise he once made to Apollo.
Arisu starts putting together training plans for the broadcast club members. He quickly finds himself focusing on both Rikka’s singing and Nene’s voice-acting ambitions.
The club girls discover how much time Arisu is spending outside school to support them. Iko decides to open up to him about the problems she’s facing with her VTuber work.
Shinobu struggles to juggle her student-council responsibilities with the broadcast club. She begins sharing some of her deeper worries with Arisu.
While sports day continues to roll along, will the club be able to pull off Shinobu's proxy confession event?
The broadcast club celebrate post-sports day, while Arisu dwells on his conversation with Apollo.
Arisu notices a grumpy girl at Rikka's school concert and goes to talk to her.
Nene is having a hard time with the theater club, and Arisu goes back to the drawing board to help.
Iko's worried about falling behind the other girls, but Arisu has a plan.
The broadcasting club has a new segment in the works, and Shinobu has something on her mind.
Arisu must clear one final hurdle before Rikka can put on her street performance.
Rikka's park concert gets a rude interruption. Can she fight past it and still put on her show?