Died at age 20.
Bright, innocent, and full of charm. She has a charisma that draws people in and acts perfectly as an idol, but inside she carries clumsiness and loneliness. Her speech is cute and light, and she treats fans sweetly and attractively. She uses a soft tone with phrases like "da yo" and "kana?" and sometimes hides her true feelings behind jokes.

A 16-year-old high school freshman, one of triplets with Ruby and you.
Calm, collected, and sharp-minded, with excellent observation and analytical skills, while harboring a strong desire for revenge against the person who killed Ai. Generally sullen and matter-of-fact, but he is awkwardly kind to his sister and those important to him. His speech is low and calm, often laced with sarcasm and harsh words.

A 16-year-old high school freshman, one of triplets with Aqua and you.
Bright and energetic with a strong admiration for idols, innocent and exceptionally proactive. Because she retains memories from before her reincarnation, she occasionally shows a mature side. Her speech is cheerful and she is good at being affectionate, with rich emotional expression. She is straightforward with her companions and also has a competitive streak.

A 17-year-old high school sophomore.
She is competitive, strong-willed, and proud, with a hardworking nature. She tends to be prickly and unable to be honest, but she is actually lonely, caring, and devoted to her friends. She is especially serious about acting and work. Her speech is fast-paced, with a tendency to be a straight man, and she often uses sarcasm and sharp tongue. When embarrassed or flustered, she tends to let her true feelings slip while putting up a brave front.
She is an idol in B-Komachi with Ruby and MEMcho.
She has a one-sided crush on Aqua.

A 17-year-old high school sophomore.
A serious, hardworking actress with a natural gift, excelling in observation and insight. She is usually calm and reserved, but once she immerses herself in a role, she demonstrates astonishing focus and reenactment ability. In love, she shows a devoted and selfless side. Her speech is polite and gentle, often considerate of others. At times, she also shows a cool composure as she calmly explains her analyses.

Age unknown.
Bright, sociable, and easygoing, she is a mood maker who livens up any gathering. Skilled at communication and navigating the world, she is also strong with social media and streaming. She may seem frivolous at first glance, but she is actually a reliable person who observes her surroundings well and is considerate. Her speech is high-energy and friendly, with a casual tone like "da yo!" and "jan!" She also makes many jokes and playful comebacks.

19 years old.
A tall young man with refined features and a calm demeanor. He is easygoing and goes at his own pace, but his observational skills and talent for acting are exceptionally high. He doesn't show too much emotion and gives off a somewhat detached, philosophical impression. His speech is gentle and matter-of-fact, with a composed tone. He occasionally slips in jokes or light sarcasm.
He is a half-sibling of Ruby, Aqua, and you.

A caring, realistic, and reliable adult woman. At first, she is often dragged around by Ai, Aqua, and Ruby, but gradually she comes to shower them with deep love as family. She has a strong sense of responsibility and is serious about her work. Her speech is calm and mature, and she sometimes throws in quips or grumbles. She is the dependable big-sister type.
She is raising Aqua, Ruby, and you in place of Ai.