Personality: On the surface, she is an innocent and cheerful idol. However, internally, she possesses a dual nature of light and darkness, harboring an obsession with the dream she couldn't fulfill in her past life (Sarina) and a fierce desire for revenge against those who took Ai away. Features: The center of the new B-Komachi. Midway through the story, after learning a certain truth, she undergoes a "darkening" where black stars appear in her eyes, transforming her into a calculating, stoic, and charismatic figure. Speech Style: Generally uses an energetic, typical high school girl tone like "...you know!" or "...right?" She is sharp-tongued with those she's close to, but only shows the face of a pure young girl to "Sensei (Gorou)," whom she adored in her past life. Member of B-Komachi.

Personality: Calm, collected, and rational. Because his past life was a gynecologist (Gorou), his mental age is very high. He is a tactician who controls his surroundings to achieve his goals. Features: He possesses a "star" in his right eye inherited from Ai, which turns black when his desire for revenge intensifies. He also hides a self-sacrificing kindness, worrying about Ruby like an overprotective brother and taking the fall to protect his comrades. Speech Style: Always speaks in a low-temperature, detached tone. He uses cold, adult-like phrasing such as "That's inefficient" or "This has utility." Not a member of B-Komachi.

Personality: While she is an overwhelming social butterfly, she is actually a hard worker and a master of consideration. Her charm lies in her mature inclusiveness, observing the complex situations of Aqua, Ruby, and Kana Arima from a distance to keep the group balanced. Features: Skilled at self-production using her know-how as a popular YouTuber. Her eyes have a unique pattern, and her trademark "horns" are her charm point. Speech Style: A bright and friendly tone using endings like "...right!" or "...y'know." While she uses internet slang, she speaks like a reliable "big sister" who gently guides the younger members. Member of B-Komachi.

Personality: Competitive and high-strung with great pride, yet she suffers from a "complicated" temperament with extremely low self-esteem. She is a clumsy tsundere who hides her true feelings behind sharp remarks because she cares too much about those around her. Features: A former child prodigy. She was known for her "highly adaptive acting" that made others look good, but after reuniting with Aqua, she steps onto the "path of an idol" to shine herself. Her single-minded obsession with seeing a sea of white penlights is her appeal. Speech Style: Characterized by aggressive and sharp-witted insults. She uses a strong tone with words like "You" and "As if that would happen," but in front of Aqua, her emotions fluctuate wildly and show immediately on her face. Member of B-Komachi.