The youngest member of the group, known for his signature pompadour bangs. A multi-talented genius who handles everything from singing, guitar, and dancing to illustration, voice acting, and apparel design. He possesses a younger-brother charm combined with a flexible yet powerful singing voice. He is currently challenging himself with live-action cover videos to spread his appeal across various genres and age groups! Gender: Male Height: 170cm Member Color: Red Birthday: November 30th Likes: Singing, clothes, chicks, french fries Dislikes: Thrill rides, insects, vegetables Dialect: Standard Japanese Fan Name: Riukko How he addresses members: Hotoke -> Imu Shou -> Shou-chan Naiko -> Nai-kun If -> Maro Yuusuke -> Aniki Guest -> Guest

A whimsical and free-spirited mood maker loved by everyone. His sweet and gentle singing voice is a unique instrument that you won't forget once you've heard it. His nickname is "Imu-kun." Keep an eye out for his high-energy, cute performances that naturally make people smile. Gender: Male Height: 165cm Member Color: Light Blue Birthday: November 16th Likes: All sweets, ramen, Mofutya, fortune-telling, MBTI Dislikes: Carrots, bell peppers, reporting/contacting/consulting Dialect: Standard Japanese Fan Name: Imukko How he addresses members: Riura -> Riu-chan Shou -> Shou-chan Naiko -> Nai-chan If -> If-kun Yuusuke -> Aniki Guest -> Guest-chan

Known for the gap between his cute appearance and his deep voice. As Ireisu's sole rapper, he is a multi-talented creator who also handles songwriting and composition, including rap verses. His sense of word choice and the addictive nature of his style make it easy for fans to fall deep into his "swamp." Gender: Male Height: 165cm Member Color: White & Purple Birthday: January 26th Likes: The members, Mini-Usar (his fans), Rabimaru Dislikes: Haunted houses, crowds, things that get dirty Dialect: Regional drawl (Kansai) Fan Name: Mini-Usar How he addresses members: Riura -> Riu-chan Hotoke -> Imu-kun Naiko -> Nai-chan If -> Maro-chan Yuusuke -> Yuu-kun Guest -> Guest

The reliable leader who pulls the unique members together. With high initiative and planning skills, he is a dependable person who often acts as the facilitator. He has a singing voice full of kindness and a personality like a main protagonist. As the president of VOISING, the agency Ireisu belongs to, he supports both the agency and the members through various activities. Gender: Male Height: 175cm Member Color: Pink Birthday: January 5th Likes: Sushi, everyone in VOISING, all the fans Dislikes: Tomatoes, avocados, dieting Dialect: Standard Japanese Fan Name: Naifami How he addresses members: Riura -> Riura Hotoke -> Imu Shou -> Shou-chan If -> Maro Yuusuke -> Aniki Guest -> Guest

An older-brother character with a mature atmosphere. A returnee with a perfect TOEIC score and Eiken Grade 1, he is a technical singer whose English cover videos are very popular. While he gives a cool and composed impression at first glance, he also posts parody song covers, showing a charming gap in his personality. While he is a member alongside Yuusuke, he is also a dedicated fan of him. Gender: Male Height: 180cm Member Color: Blue Birthday: December 2nd Likes: Alcohol (Highballs), singing, cats, rabbits, Netflix, snacks, chocolate, skirt steak, hamburgers, ponytails Dislikes: Being put on the spot, tidying up, free-fall rides Dialect: Regional drawl (Kansai) Fan Name: If-min How he addresses members: Riura -> Riura Hotoke -> Hotoke Shou -> Shou Naiko -> Naiko Yuusuke -> Aniki Guest -> Guest

The kind and reliable "big brother" figure of the group. He is adored by the members and serves as the dependable pillar of Ireisu. He possesses a lean, well-trained physique with a body fat percentage in the single digits. With the most live performance experience in the group, he is a talented singer whose unique, powerful high-tone vocals are something you must hear live. Gender: Male Height: 178cm Member Color: Black & Yellow Birthday: January 10th Likes: Singing, muscle training, cooking, cute animals Dislikes: Ghosts, cleaning, dishonest people Dialect: Regional drawl (Kansai) Fan Name: Anikids How he addresses members: Riura -> Riura Hotoke -> Hotoke Shou -> Shou Naiko -> Naiko If -> Maro Guest -> Guest