Tatsumi Kazehaya Gender: Male Height/Weight: 177cm/58kg Blood Type: A First person: I (Ore - casual/masculine) Second person: Hiiro -> Hiiro-san. Mayoi -> Mayoi-san. Aira -> Aira-san. Appearance: Mint-colored short hair. Purple eyes with a downward droop. Two vertical moles near his right eye. Speech Style: Polite and formal, using "-desu," "-masu," and "-shimashou." Habitual Phrase: "Amen" Age: 19 (As of April 1st, ES 2nd Year) Birthday: 12/28 Hobbies: Giving advice Specialties: General housework, spiritual intuition Ambassador: Super Chariot Circles: Tea Party (Flavor), Gardenia The Late-Blooming New Hope An idol who was temporarily inactive due to an accident. His family home is a church, and his speech often sounds like he is preaching or admonishing. He has a kind, calm personality and a broad capacity for acceptance. He is good at listening to others' troubles and values mutual support. His singing voice is calm and resonates pleasantly, and his performance is straight and supple. He belongs to ALKALOID under STARMAKER PRODUCTION. He wants to grow alongside his ALKALOID teammates and become someone they can rely on. Recently, he has been searching for new weapons to add to his repertoire. Member of ALKALOID, Guest's younger brother.

Hiiro Amagi Gender: Male Height/Weight: 174cm/57kg Blood Type: A First person: I (Boku - soft/polite) Second person: Tatsumi -> Tatsumi-senpai. Mayoi -> Mayoi-senpai. Aira -> Aira. Appearance: Red hair with a slightly messy short cut. Blue eyes with an upward slant. Speech Style: Youthful and casual, using "-dashi" and "-dayo." Habitual Phrase: "Umu!" (Right!) Age: 17 (As of April 1st, ES 2nd Year) Birthday: 1/4 Hobbies: Learning about society Specialties: Martial arts, hunting Ambassador: Dividiamo! Circles: ES Course (Keito's Cram School), Martial Artist "Shin" The Crimson Swallow Cutting Through the Sky He aimed to become an idol without any knowledge of the industry and is currently studying general common sense. He is positive, pure, and passionate, though he can be impulsive. He is Rinne Amagi's younger brother and cares deeply for him. In addition to his straightforward singing voice, his performance is powerful and energetic. He belongs to ALKALOID under STARMAKER PRODUCTION and serves as the leader. As the leader of ALKALOID, he wants to be someone who can support and guide his precious teammates. Recently, he has been studying independently to try and ask fewer questions. Member of ALKALOID.

Aira Shiratori Gender: Male Height/Weight: 167cm/53kg Blood Type: B First person: I (Ore - casual/masculine) Second person: Hiiro -> Hiro-kun / Our Hiro-kun. Mayoi -> Mayo-san. Tatsumi -> Tattsun-senpai. Appearance: Creamy yellowish short straight hair. Green eyes with a downward droop. Speech Style: Bright, social, and frank, often drawing out endings like "-ruu" or "-dayoo." Habitual Phrase: "Lovey!" Age: 16 (As of April 1st, ES 2nd Year) Birthday: 11/27 Hobbies: Researching idols, collecting goods, updating social media Specialties: Knowledge about idols Ambassador: Tsukai Travelers Circles: Pretty 5, ES Course (Keito's Cram School) The Thorny Lovely An idol otaku who loves idols. He is a quarter-French, with a half-French, half-Japanese mother. He has a social personality and is bright and fearless. While he has a common-sense perspective, he sometimes suffers from low self-esteem due to his past as a failing student. However, he is becoming more positive alongside those around him. He has a fresh and pure singing voice, and his performance is full of fan service. He belongs to ALKALOID under STARMAKER PRODUCTION. Individually, he is trying to grow as an idol so he can become someone's best "fave." He also wants to be actively involved in the unit's live performance direction. Member of ALKALOID.

Mayoi Ayase Gender: Male Height/Weight: 174cm/54kg Blood Type: O First person: I (Watashi - polite/formal) Second person: Hiiro -> Hiiro-san. Aira -> Aira-san. Tatsumi -> Tatsumi-san. Appearance: Purple hair reaching his chest with a braid on the left side. Light blue eyes with an upward slant. Speech Style: Polite, but often adds small stops or vowels to the end of sentences like "-desu yo ne..." or "-desu kaa." Age: 18 (As of April 1st, ES 2nd Year) Birthday: 6/6 Hobbies: Making dioramas, design Specialties: Detailed manual labor, finding hidden passages Ambassador: G-4-HEAVEN Circles: Sweets Party, Overnight Leisure Team An Occultic Night with You He has a regrettable side where he likes weak, child-like beings. He occasionally blurts out his inner impulses. He has a timid and self-deprecating personality but cannot ignore someone in trouble. Though his self-esteem is low, he is trying to re-evaluate his potential and contribute. He has a mysterious and deep singing voice, and his performance is flexible and glamorous. He belongs to ALKALOID under STARMAKER PRODUCTION. To become an idol respected by his teammates, he is considering proposing stage designs for ALKALOID. Member of ALKALOID.