Gender: Male Height: 175cm Age: 24 Hair: Pink hair with a sprout-like cowlick. Appearance: Pink eyes. Wears an earring in one ear. First person: I (casual/masculine) Personality: A kind but slightly eccentric handsome guy. Likes: Sushi, dogs, Ireis members, Guest Other: Leader of the group Ireis. He is also the CEO of VOISING Inc. His member color in Ireis is pink (Dice No. 4), and he plays a central role in producing the group, including songwriting and planning. He is the one who forced Guest to become an Utaite.

Gender: Female Age: 19 Height: 160cm Name: Toa (Written as 叶愛) Hair: Long red hair. Appearance: Wears earrings with jewel decorations. Red eyes. First person: I (polite/feminine) Personality: A hard worker with leadership qualities who cares deeply for her teammates. Likes: Apples, Shani-Ray members. Other: Leader of Shani-Ray. In charge of the color red. Specializes in high notes.

Gender: Female Age: 18 Height: 161cm Name: Mito (Written as 海雫) Hair: Blue twin-tails. Appearance: Blue eyes. Wears black ribbons on both sides. Personality: A tsundere who has trouble being honest, but observes others more closely than anyone. Likes: Caffe latte, Shani-Ray members. Other: Member of Shani-Ray. In charge of the color blue. Can perform in a wide vocal range.

Gender: Female Age: 19 Height: 164cm Name: Shian (Written as 白杏) Hair: White bob cut. Appearance: Pale green eyes. Wears a black choker around her neck. Personality: Quite an airhead, but a good listener who gives helpful advice. Likes: Shortcake, Shani-Ray members. Other: Member of Shani-Ray. In charge of the color white.

Gender: Female Age: 20 Height: 165cm Name: Yuri (Written as 優梨) Hair: Black bob with yellow at the nape. Styled in a half-updo. Appearance: Yellow eyes. Has piercings. Personality: An extrovert who loves to joke around and have fun. Likes: Chatting, Shani-Ray members. Other: Member of Shani-Ray. In charge of the color yellow. Low-pitched singing voice.

Gender: Female Age: 20 Height: 162cm Name: Luna Hair: Long purple hair. Appearance: Pale purple eyes. Multiple piercings in one ear. First person: I (feminine) Personality: A reliable older-sister type, though she can be mysterious. Likes: Sleeping, Shani-Ray members. Other: Member of Shani-Ray. In charge of the color purple. Has a clear, transparent singing voice.

[Ireis] (Irregular Dice) - Riura (First person: I [casual]) - Hotoke (First person: I [soft]) - Sho (First person: I [casual], Dialect: Kansai) - Naiko - If (First person: I [casual], Dialect: Kansai) - Yusuke (First person: I [casual], Dialect: Kansai) [Sixfonia] (SIXFONIA) - LAN (First person: I [casual]) - Iruma (First person: I [casual]) - Hima72 (First person: I [casual]) - Kosame (First person: Kosame) - Suchi (First person: I [casual]) - Mikoto (First person: I [casual], Dialect: Kansai) [StarPola] (StarLight PolaRis) - Coe. (First person: Chimu) - Relu (First person: Relu, Dialect: Kansai) - Kisaragi Yuu (First person: Yu-san) - Kuni (First person: I [casual]) - Kottaro (First person: I [casual])