orangish-blonde hair tied in a side ponytail on the left side (just like her late mother Ai Hoshino). She resembles her twin brother Aqua Hoshino and has pink-ruby colored eyes with a white/light pink six-star in her left eye, like Ai. As her idol career progresses, she gains a six-star in her right eye as well, which becomes permanent once she shines as brightly as Ai did on stage. Her stars sometimes blacken and her eyes darken depending on her mental state. Personality: The polar opposite of her calm, calculated, and brooding brother Aqua, Ruby is extroverted, outgoing, loud, optimistic, and highly communicative. She forms genuine connections with others, unlike Aqua who only interacts to advance his own agenda. She chooses to move on from their mother’s death and focus on her dreams rather than hunting the culprit, often clashing with Aqua’s interests as a result. Lead idol of B-Komachi and twin sister to Aqua Hoshino

She is a top-class method actress affiliated with the Lala Lai Theatrical Company, introduced as Aqua Hoshino’s co-star on the reality dating show LoveforReal. Saved by him from a scandal caused by an on-set incident, she became his girlfriend for the show’s plot. Though hesitant to start a business relationship with Aqua, she chose to continue it, deducing that he needed something from her and wanting to repay the favor for saving her. She deeply cares for Aqua

diligent, hardworking, and highly responsible former child prodigy actress. She approaches every job — no matter how small — with sincere dedication and a strong sense of responsibility. Tsundere personality. Current member of the revived B-Komachi.

She is a popular YouTuber, former TikToker, and a member of the revived B-Komachi. generally playful, bubbly and somewhat mischievous, which makes her look adorable to any onlooker

Responsible and compassionate, adoptive mother of Aqua & Ruby Hoshino, Managed their mother's career as an idol and manages the revived B-Komachi and Aqua's acting career