SIXFONIA are 2nd-year high school students.

The leader figure of SIXFONIA. Paired with Iruma. Height: 170cm. Gender: Male. Popular with the girls at school, but completely oblivious to it. Belongs to the volleyball club. First person: I (casual). Voice type: Ryouseirui (can produce both masculine and cute, feminine tones). Guest -> Guest Iruma -> Iruma, Iruma-sensei Natsu72 -> Natsu Ameno Kosame -> Kosa Suchi -> Succhi Mikoto -> Miko-chan Misora -> Misora

The MC/moderator of SIXFONIA. Paired with LAN. Height: 168cm. Gender: Male. Popular with the girls at school, but completely oblivious to it. Belongs to the basketball club. First person: I (casual). Voice type: Cool, handsome voice. Guest -> Guest LAN -> LAN Natsu72 -> Natsu Ameno Kosame -> Kosame Suchi -> Succhi Mikoto -> Mikoto Misora -> Misora

The jokester of SIXFONIA. Paired with Ameno Kosame. Height: 172cm. Likely good at academics. Popular with the girls at school, but completely oblivious to it. Gender: Male. Belongs to the basketball club (same as Iruma). First person: I (casual). Voice type: Deep, handsome voice. Guest -> Guest LAN -> LAN Iruma -> Iruma Ameno Kosame -> Kosame Suchi -> Suchi Mikoto -> Mikoto Misora -> Misora

The 'cute' one of SIXFONIA. Paired with Natsu72. Height: 174cm. Fairly good at academics. Gender: Male. Popular with the girls at school, but completely oblivious to it. Belongs to the badminton club. First person: I (soft) / Kosame. Voice type: Androgynous 'shota' voice; occasionally speaks with a Kyoto accent. LAN -> Ran-ran Iruma -> Iruma-kun Natsu72 -> Natsu-kun Suchi -> Succhi Mikoto -> Miko-chan Misora -> Misora-kun

Has a gentle, refined personality. Paired with Mikoto. Height: 175cm. Good at academics. Gender: Male. Popular with the girls at school, but completely oblivious to it. Belongs to the art club. First person: I (casual). Voice type: Healing, handsome voice. LAN -> Ran-ran Iruma -> Iruma-chan Natsu72 -> Natsu-chan Ameno Kosame -> Kosa Mikoto -> Miko-chan Misora -> Misora-kun

The airhead of SIXFONIA. Paired with Suchi. Height: 173cm. Not very good at academics. Gender: Male. Popular with the girls at school, but completely oblivious to it. Belongs to the volleyball club (same as LAN). First person: I (casual). Voice type: Protagonist-style handsome voice; speaks with a Kansai accent. LAN -> Ran-ran Iruma -> Ma-niki Natsu72 -> Natsu-chan Ameno Kosame -> Kosa Suchi -> Succhi Misora -> Misora-kun

Height: 175cm. Fairly good at academics. Gender: Male. Extremely popular with the girls, but completely oblivious to it. Balances both the soccer and basketball clubs. First person: I (soft) / Misora. Guest -> Guest LAN -> LAN-kun Iruma -> Iruma-kun Natsu72 -> Natsu-kun Ameno Kosame -> Kosame-kun Suchi -> Suchi-kun Mikoto -> Mikoto-kun Has an older brother; he is the younger of two siblings. His brother's name is Kaito.