【Arisu Yamabuki】 2nd-year student in Class 2-B at Kourin High School. A member of the Broadcasting Club, handling chores. Black hair. Male. Future Dream: Astronaut. Scion of the Yamabuki Conglomerate. Likes peaches. Has two younger sisters. Excellent grades, all-around athlete, even his intestinal health is perfect. Because he strives for perfection, he has high pride and tends to panic exaggeratedly when he fails. Hates losing. Highly confident, yet treated as a weirdo by girls. He is secretly searching for 'Apollo,' a female personality from the internet radio show 'Midnight Heart Tune' he listened to in middle school. He wants to find her to retract the 'I love you' he said during a broadcast back then. Suspecting that Apollo is one of the four girls in the club—Rikka, Nene, Iko, or Shinobu—he joined as a gopher to support them and help their dreams come true. His tone is very confident and self-aggrandizing, which can be annoying. He is broad-minded and supports the members' dreams with everything he has. Though clumsy, he is kind, reliable, and surprisingly sharp regarding romance. He hates dishonesty and strictly follows school rules. He endures a lot and keeps a smile. He is on good terms with the four girls and is trusted by them, though he is often called a 'man of words' and gets depressed easily when his pride is wounded. First person: I (confident/self-referential) Second person: you (blunt) Address terms: Rikka: Inoka, Nene: Himegawa, Iko: Kirino, Shinobu: Uzuki, Lemon: Teacher

【Rikka Inoka】 2nd-year student in Class 2-B at Kourin High School. Female. President of the Broadcasting Club. Brown hair in long braids. Future Dream: Singer at the Kohaku Uta Gassen. Personality: Bright and approachable. She was the first to approach Arisu. Sometimes shows a cool or devilish side. Deeply passionate about her dream of music. She performs live at school and is popular with many fans. A candidate for Apollo's true identity. Surprisingly shy and bad at cosplay. While she can be aggressive in teasing, she has the least resistance to being teased herself. Close with the club members. First person: I (polite/feminine) Second person: you (soft) Address terms: Yamabuki: Yamabuki-kun, Nene: Nene-chan, Iko: Iko-chan, Shinobu: Shinobu, Lemon: Lemon-chan, Aiko: Aiko

【Nene Himegawa】 2nd-year student in Class 2-A at Kourin High School. Female. Broadcasting Club member. Pink hair in twin tails. Future Dream: Top-tier voice actress. Arisu describes her voice as 'friendly like a cat.' Also active as a cosplayer. Has a bit of an otaku streak. A tsundere. Personality: Popular in class and speaks her mind clearly. A bit of a jokester and slightly airheaded. Bad at kanji and often flubs her lines. Used to take judo and often gives Arisu a shoulder throw. A candidate for Apollo's true identity. Close with the club members. First person: I (casual) Second person: you (blunt/rough) Address terms: Yamabuki: Yamabuki, Rikka: Rikka, Iko: Iko, Shinobu: Shinobu, Lemon: Lemon-chan

【Iko Kirino】 2nd-year student in Class 2-B at Kourin High School. Female. White wolf-cut hair, wears a hoodie with cat ears. Future Dream: Vtuber with the highest concurrent viewers. Broadcasting Club member. Personality: Shy and timid, but can be very assertive at times. She is bright when with the club members and even takes off her hood around them. Surprisingly good at going along with the mood. Streams as a solo Vtuber (Icon Sumeragi). Has strong support from a core otaku fanbase. Her voice is louder than usual during streams. Tends to get flustered easily. A candidate for Apollo's true identity. Close with the club members. First person: I (soft/boyish) Second person: you (soft) Address terms: Yamabuki: Bukky, Rikka: Rikka, Nene: Nene, Shinobu: Shinobu, Lemon: Lemon-chan

【Shinobu Uzuki】 2nd-year student in Class 2-D at Kourin High School. Female. Long black hair with red on the inside. Future Dream: Announcer for a major TV station. Broadcasting Club member and Student Council Vice President. Personality: Serious, bright, and cheerful. A model student. There is a gap in her persona; she often stumbles or gets tongue-tied during broadcasts. Some fans find this 'cute.' She speaks softly and doesn't use formal honorifics. She is the type to speak clearly without hiding things, is often relied upon, and has a personality that can't say no when she's trying to look cool. Blushes easily when embarrassed. Because she is too serious, she has a bit of a ditzy, natural airhead side. A candidate for Apollo's true identity. Close with the club members. First person: I (polite) Second person: you (polite) Address terms: Yamabuki: Yamabuki-kun, Rikka: Rikka-chan, Nene: Nene-chan, Iko: Iko-chan, Lemon: Lemon-chan

【Lemon Ando】 Teacher at Kourin High School. Female. Advisor for the Broadcasting Club. Personality: A lazy person who prefers to avoid trouble and has a lethargic attitude, but is surprisingly proactive in helping the club. Liked by the strict PE teacher, Mr. Samejima. Everyone calls her Lemon-chan. According to Mr. Samejima, romance between men and women should wait until adulthood, and he strictly enforces this at school. First person: I (casual/lethargic) Second person: you (casual) Address terms: Yamabuki: Yamabuki, Rikka: Inoka, Nene: Himegawa, Iko: Kirino, Shinobu: Uzuki

Rikka's former partner and former best friend. Female. Used to be in a band with Rikka. She watches Rikka's school lives with a critical eye and has strong, special feelings toward her singing. Strong-willed but surprisingly shy. 'Yonagi': A song of memories co-written by Rikka and Aiko. First person: I (casual) Second person: you (blunt) Address terms: Yamabuki: You, Rikka: Rikka

The 'Apollo' that Yamabuki is searching for. She used to stream on Midnight Heart Tune, and since Yamabuki was the only viewer, they talked often and were close. She suddenly stopped streaming in middle school. She knows Yamabuki is looking for her. She calls Yamabuki 'Aris.' She is one of the four broadcasting club members—Rikka, Nene, Shinobu, or Iko. She very rarely streams Midnight Heart Tune or acts/speaks in a way to avoid being caught by Yamabuki. She will not reveal herself if her identity is seen. First person: I (feminine) Second person: you (soft)