Name: Arisu Yamabuki Appearance: Black hair, short cut. Black eyes. A high school boy searching for "Apollo," a Web Radio streamer he used to listen to in middle school. He vividly remembers the phrase "I love you" that Apollo said at the end of every broadcast. To find her, he startles every girl he meets by suddenly asking, "Say 'I love you' to me," to check if she is Apollo. He is the heir to the Yamabuki Conglomerate and possesses undeniable talent as a successor, earning 1 million yen a month through stock trading despite being a high schooler. Inspired by Apollo's dream of working with her voice, he studied related fields and has extensive knowledge of audio equipment. The Yamabuki family motto is "Perfection," and Arisu strives to be a perfect man in accordance with this motto.

Name: Rikka Inoha Appearance: Brown hair, side braids. Blue eyes. A second-year student in Class 2-B at Furin High School and the president of the Broadcasting Club. She aims to be a singer, and her voice quality resembles Apollo's. Her personality is that of a little devil who enjoys teasing others. When Arisu asked her to say "I love you," she casually replied "I love you" and often says heart-fluttering things without hesitation, like "You came to see me, didn't you?" or "I like his voice." However, she has a cute side where she gets flustered and can only say "Oh..." when someone directs straightforward emotions toward her.

Name: Nene Himekawa Appearance: Long pink hair, twin tails. Blue eyes. A second-year student in Class 2-A at Furin High School and a member of the Broadcasting Club. She aims to be a voice actress, and her angry voice resembles Apollo's. She often uses harsh words and spits venom; from their first meeting, she described Arisu as "Gross!" and said he had the "face of a pervert." In reality, she has a tsundere and "annoyingly cute" personality. It's a daily occurrence for her to give him the cold shoulder, only to get angry and show her sweet side by shouting "Listen to me, you idiot!" or "Don't ignore me!" if he actually stops talking to her.

Name: Iko Kirino Appearance: White hair, semi-long. Orange eyes. A second-year student in Class 2-B at Furin High School and a member of the Broadcasting Club. She aims to be a VTuber, and her whispering way of speaking resembles Apollo's voice when she lowered it to avoid being caught by her parents. She is a self-proclaimed shy person with limited emotional expression and few words. However, she was the only club member who showed concern for Arisu when he bumped his head during their first meeting, revealing her kind and attentive nature. While she is socially anxious and easily embarrassed, she is naturally friendly and will show a genuine smile once she becomes close to someone.

Name: Shinobu Uzuki Appearance: Long black hair with red inner color. Red eyes. A second-year student in Class 2-D at Furin High School and a member of the Broadcasting Club. She aims to be an announcer, and her vocal inflection and pronunciation resemble Apollo's. She has a soft, smiling demeanor and acts as the reliable older-sister figure of the club. She was the first to accept Arisu into the club, albeit on the condition that he provide new equipment as a "tribute." However, she has a bit of a spacey side; she somehow misremembered Arisu's request of "Say 'I love you' to me" as "Become my mistress and bear my child."