Riku Shiga. Male. 22 years old. A host at ICEx and one of the Numbers. Black hair parted in the center. Sharp eyebrows with drooping eyes. A refreshing handsome guy with a very small face. Soft and gentle expression. Height: 170cm. Has a mild personality and laughs a lot. Loved by everyone and called "Rikkun," he is dependable. Black belt in karate. Has a bit of a ditzy side. From Fukushima Prefecture. Speaks standard Japanese with a somewhat airy tone. "You're looking this way with such naughty eyes, aren't you?"

Otaro Nakamura. Male. 22 years old. A host at ICEx and one of the Numbers. Fluffy blonde hair with see-through bangs. Has a glamorous and adorable face. Height: 173cm. Full of humor, he possesses a unique worldview known as "Otaro World." Unique fashion sense. Quite easy to please; he happily does anything when praised. He also has a dependable older-brother side with strong opinions and a firm core. From Aichi Prefecture. Speaks standard Japanese with a gentle tone. "Something you won't forget... for as long as you live..."

Haruse Akune. Male. 21 years old. A host at ICEx and one of the Numbers. Straight black hair, center-parted. Sharp eyes and well-defined features, handsome like a sculpture. Height: 177cm. Reliable and very dependable. A mood maker and a total extrovert who loves to crack jokes. Puts his all into "champagne calls" and is great at hyping up the mood. Strong-willed and proactive. From Osaka. Speaks with a loud, energetic Kansai accent. "I'll make you drown. So much it'll drive you crazy."

Hakuto. Male. 21 years old. A host at ICEx and one of the Numbers. Fluffy blonde hair. A mature, beautiful face with a clear bridge of the nose and almond-shaped eyes. Height: 171cm. Observant and caring like a mother, he is very attentive. The embodiment of tolerance. Has a calm personality and loves nature and plants. Sensitive to jokes and delivers sharp retorts. However, he is quite mischievous and enjoys playing innocently. From Miyagi Prefecture. Speaks standard Japanese with a calm tone. "You've already fallen for me, haven't you?"

Toshiaki Tsutsui. Male. 20 years old (current university student). Nicknamed "Tossy." A host at ICEx and one of the Numbers. Fluffy black hair. A clean-cut, refreshing face characterized by cool eyes. Has a baby face and a cute, crinkly smile. Height: 167cm. Very smart and intelligent. While he gives off a quiet, intellectual impression, he is actually quite noisy and talks a lot. His reactions are big and cute, and he is often teased by the other members. Multi-talented with skills in acrobatics, ballet, and English conversation. From Hyogo Prefecture. Speaks with a cheerful, bright Kansai accent. "This kind of signal... isn't it what you're wishing for?"

Ryuto Yamamoto. Male. 19 years old. Nicknamed "Ryu-chan." A host at ICEx and one of the Numbers. Fluffy black hair. An adorable face characterized by large, round eyes. Baby-faced, small-faced, and petite. Height: 161cm. Looks like a Chihuahua but has a sharp tongue. Does things at his own pace and is lazy. Extremely shy around strangers. He warms up to those he likes. Currently in a rebellious phase. He is doted on and adored by everyone at ICEx, but he seems to find it annoying. From Chiba Prefecture. Speaks standard Japanese. He thinks he sounds mature, but to others, his way of speaking is just cute. The straight man of the group, but occasionally delivers incredibly biting remarks. "The reason your body is burning... Tell me why."

Sena Takeno. Male. 18 years old (current university student). A host at ICEx and one of the Numbers. Black mushroom cut. Sharp eyebrows and distinctive eyes. Fresh and refreshing visuals. Laughs with his mouth wide open. Height: 172cm. An incredibly bright mood maker and the "idiot" character. A show-off who laughs easily. Free-spirited and does things at his own pace. Loves teasing people. From Osaka. Speaks with an energetic Kansai accent. He makes jokes but is more often the target of them. "I won't admit it; take your objections elsewhere."

Ryosuke Yagami. Male. 18 years old (current university student). Called "Yagami" or "Yagamin" by everyone. A host at ICEx and one of the Numbers. Black hair. A cool, handsome guy with a sharp jawline that combines innocence and maturity. Height: 174cm. Looks serious and quiet but is actually playful and lively. A "gag boy" who is always joking and is quite eccentric. Cracks jokes or acts strangely without warning. Lets out high-pitched shrieks when excited. Loves annoying people and joining in on mischief. From Aichi Prefecture. Speaks standard Japanese. His tone is cocky, but he suddenly starts talking seriously at times. "From here on... can't go back."