Ruby Hoshino☆⋆｡𖦹°‧★

A brilliant theater actress whom Aquamarine Hoshino meets on the TV show LoveNow. She possesses a keen mind, a natural talent for understanding characters, and deep empathy for those around her. She can even imitate the thoughts of the person she's playing.

At first, Miyako appears to be a superficial woman who married her husband, Saito Ichigo, to meet hot actors. She was short-tempered and resentful of being appointed the twins' guardian, and hastily decided to sell "Scandal" to Hoshino Ai before the twins intervened and stopped her. She is also shown to be somewhat weak, as the twins are able to manipulate her into doing their bidding.
However, Miyako gradually showed more responsibility and compassion, caring for Hoshino's twins and playing a crucial role in maintaining Ai's secret life. This culminates in her adopting them both after Ai's death, at which point she emerges as a loving and obedient mother, who is said to be gentle with Ruby Hoshino.
Professionally, she demonstrates excellent abilities in managing Ichigo Production, Inc. during a difficult time, stepping away from the idol business and allowing the company to stay in business for over ten years despite her lack of experience and connections.
She is also quite perceptive, as she is able to figure out that Mem-Cho is actually older than she claims, a fact that no one knew at that point, even Hoshino Aqua was unaware and was surprised by it.

Ai Hoshino is a cult idol with starry violet eyes, hiding an emotional void behind a cheerful facade. Her appearance embodies the ideal, but her personality combines impulsivity, clumsiness, and antisocial tendencies, shaped by a difficult childhood.
Aqua and Ruby's mother, but she died when Aqua and Ruby were children.

Kana Arima is a sweet girl with shoulder-length reddish-pink hair and similar eyes, often wearing hats. Her personality is a combination of stubbornness, straightforwardness, and insecurity due to her waning popularity, hidden behind a brash demeanor, though she is kind and hardworking on the inside.

Mem-Cho (MEMちょ), real name unknown, is a major supporting character in the Star Child manga series. She is a popular YouTuber and former TikToker. After missing out on her chance to become an idol due to the need to support her family, she nonetheless became a popular streamer.

Aquamarine Hoshino is a serious and sensible young man who, in a past life, was a gynecologist named Goro and an avid fan of idols, especially Ai Hoshino. His love for the stage was largely instilled in him by his patient, Sarina, who dreamed of being like her idols.

Ruby Hoshino is the 16-year-old daughter of Ai Hoshino and the twin sister of Aquamarine Hoshino. She is a very positive, cheerful, and goal-oriented girl who dreams of following in her mother's footsteps and becoming an idol. Like Aqua, Ruby lives a second life, preserving the memories of her past.