Ruby Hoshino/Relationships

*"It's a secret~"*
This article contains **SPOILERS** to later chapters. Read this page at your own risk.

## Family

### Aqua Hoshino

Ruby's older brother who's very overprotective of her sister, not wanting her to walk the same path that killed her mother. She and her friends often call him a "sis-con" due to this and the lengths he goes to prevent her from achieving her dreams. Often, she is hindered by his presence and is annoyed by his personality, as seen when he puts on a face when he first enters a dating show. These scenarios are incredibly off-putting for her and her colleagues.

As time goes by, he becomes more and more accepting of his sister's wishes and even goes as far as to help her group prepare for their gigs. He disguised himself as Pieyon to prevent any problems in coordinating their dances and singing. He and Ruby are closer than one might think, but not to the point where they are aware of who was who in their past lives.

During Aqua's time on *LoveforReal*, Ruby is once asked by Minami about how she felt on seeing the kiss scene between her twin brother and Akane, she says with a pout and sad face that it was '5 times more awkward than watching the kiss scene between siblings on TV' and she had a mixed feeling about it.

As rehearsals for the *Tokyo Blade* stage adaptation gets underway, Ruby drags Minami along in an attempt to visit him on set, only to be greeted by Melt, who informs her that he has already left. When asked why Aqua is going home at different times, he informs her that Aqua has been seen going home together with Akane. Ruby becomes suspicious and tries to ask him about this before Minami warns against this. When Minami suggests they are doing lewd things, Ruby is initially frantic but soon becomes serious as she cannot imagine her brother risking pregnancy with a high school girl. She adds that she would lose all respect for him if he did.

After a talk about their parentage with Taiki, Ruby notices a positive change in Aqua's demeanor as he offers to make breakfast for them. Ahead of the trip to Miyazaki, she asks Akane what her brother threatened her with to get such a beautiful person to go out with him, much to the eavesdropping Aqua's chagrin at being painted in such a bad light. She requests Akane to take care of her 'incompetent' brother for a long time after asking when they intend to get married and permission to call her big sister.

To save Kana from a scandal, Aqua reveals his mother's secret to the public but this action significantly strained his relationship with Ruby. Believing him to be a liar like everyone else, Ruby even goes as far as saying she can't think of him as a family anymore.

Things would not improve until one day when Ruby has a meltdown, with the belief that she brought misfortune to everyone around her. Aqua overhears Ruby talking about her past life as she clutches onto the keychain she gave to Gorouin her previous life. After getting over the initial shock, he calls her "Sarina", revealing to his sister that he is the doctor that took care of her in their previous lives. Ruby is incredibly happy upon this revelation and is relieved to learn that he got reincarnated as her brother. She jumps into his arms giving him a deep hug with tears of happiness.

Ruby states with sadness that Ai said idols often lied. Aqua attempts to comfort her saying that she and Ai are different people and she shouldn't chase her shadow any longer, she should live her own life and that there was no more need to lie. Ruby said that lying caused her great pain but she kept it up as it's what Ai used to do, she remarks how she often has very unpleasant and dirty thoughts and proceeds to ask Aqua if he is fine with a Ruby like that. Aqua then tells her that he's always been her biggest fan, that he admired how in her previous life despite being in pain in the hospital she still dreamt with sparkling eyes, declaring that in those moments she was more radiant then Ai.

This comment restores Ruby's hopeful gaze restoring her original white star on her left eye. After washing her tears away, with a happy and hopeful look she declares to an unaware Aqua (who is currently on the balcony behind a glass door) that she will shine more than Ai once more. She then talks about a promise he once made in their previous lives where Gorou said he would marry her after she turned 16, and with a playful look she states she has already turned 16.

With the matter resolved, Ruby starts displaying her affection towards Aqua more openly. In one instance she is shown clinging to Aqua in a lighthearted mood, which is noted by Kana, seemingly in contrast to her recent behavior. This may be a sign to which her priorities in finding who is responsible for the murder of her mother and mentor has been replaced by spending time with her brother.

### Ai Hoshino

Ai is Ruby's biological mother. Even in her past life as Sarina, she was a big fan of her and her work. She was elated when she reincarnated as her daughter, as she was able to get to experience her dream before her goal of becoming an idol. She was spoiled and demanded her mother's attention whenever she was around. She would utilize every moment to fawn over Ai so she could spoil and dote on her. When she was still alive, her mother reflected on how similar she was to an Otaku after Ruby complimented her smell and asked what shampoo she used despite using the same ones. After her mother's passing, she was determined to follow in her footsteps and prayed to her tombstone regularly to update her on her life.

### Ichigo Saitou

Ruby's adopted father. After Ai's death, he became distant from his family. After becoming an idol, Ruby comes to him looking for anyone connected to Ai. He promises to tell her if she becomes popular and provides some pointers on how to do so. He also helps her by using his connections to get her bigger and more popular roles.

### Miyako Saitou

Miyako was Ruby and Aqua's babysitter, but later became their adopted mother. Miyako never once tries to stop Ruby from becoming an idol, even deciding to relaunch the idol division of Ichigo Production, Inc just for her to pursue her dreams. Since she thinks of Ruby as her own daughter, she just can't say no when it comes to her.

## Ichigo Production, Inc

### Kana Arima

Despite sharing a long history, Ruby only recently started seriously interacting with Kana when the latter joined her idol group. They first met as children on the film set *That Was the Start*. However, due to Kana's cocky personality back then, Ruby immediately developed a poor opinion of her. Similarly, Kana disliked Ruby because the latter continuously got her nickname wrong.

After their first meeting, Ruby and Kana would not see each other again until high school. While their relationship was still on a bad note, things took a drastic turn when Ichigo Production, Inc began scouting for a new idol group. After Aqua pointed out that Kana was a freelancer, Ruby quickly realized her potential but was hesitant to approach her due to their bad standing with each other. As a result, while Ruby swallowed her pride and asked her to join, Aqua was forced to be an in-between by arranging their meeting, and he was ultimately the one who convinced her.

After Kana joined Ichigo Production, Inc, while they still occasionally banter, Ruby's relationship with her improved. In a way, Kana becomes a sort of mentor figure to Ruby, teaching her about the ways of the entertainment world. Conversely, whenever Kana gets depressed, Ruby is regularly the one who cheers her up. They also often gossip about Aqua and share a dislike for his moody personality.

After witnessing her acting during the stage adaptation of *Tokyo Blade*, Ruby becomes more understanding of her Kana's passion in acting and over time comes to appreciate with her involvement in B-Komachi. Kana on the other hand starts to become frustrated over Ruby's growing popularity. Nonetheless when Ruby is cast to portray Ai for the *15 Year Lie*, Kana would give her various acting advices, even letting Ruby visit on set for a film she is making.

However things take a drastic turn when Kana decides to reveal her frustration in an attempt to get Ruby to understand her mother better, damaging their relationship in the process. Ruby has made attempts to mend the relationship but has given the cold shoulder. Ruby eventually gives up and the relationship remain fractured since.

### Mem-Cho

A member of Ruby's idol group. Recruited by Aqua after their performance in *LoveforReal*, Mem's notoriety as an online personality greatly enhanced the group's fame. Despite Mem being 25 years old upon her admission, way past the ripe age for an idol, Ruby accepts her because they share the same childhood dream. Ruby looks up at her and comments on how she was a cutie when they first met. They are also optimistic hard workers, which propels their friendship further.

### Pieyon

Ruby and Pieyon seem to have been long acquaintances through the latter's affiliation with Ichigo Production, Inc. She finds working with him a joy, and he appears to be one of the few co-workers she genuinely respects, propelling him to silence Kana when she doubts his popularity.

### Shun Yoshizumi

Ruby meets Shun while working as the reporter of Dig Deep! One Chance. While it's ambiguous if she truly cares for or at least sympathizes with Shun deep down, her being nice to him is mainly so she can use him as an investment for her career as per Ichigo's advice to be kind to the assistant director to build up a relationship, in the hopes that Shun might become the main director in the future. Shun mistakes Ruby's friendliness as him being her type.

Later after a scandal on the show, Ruby invites Shun to become her manager, which he accepts.

## Friends

### Frill Shiranui

Frill is Ruby's classmate and friend. She is often seen bantering with Ruby and Minami. Later they would get the chance to work together for *15 Year Lie*.

### Minami Kotobuki

Minami is Ruby's classmate and friend. She is often seen bantering with Ruby and Frill. She once accompanies Ruby to visit Aqua during the rehearsals of the *Tokyo Blade* stage adaptation. Ruby would later invite her to take part in the cosplay segment of *Dig Deep! One Chance*.

### Akane Kurokawa

Ruby first takes note of Akane as she cast alongside her brother on *LoveforReal*. Later Ruby subconsciously utters 'mama' upon seeing footage of Akane pretending adopting the persona of Ai. As Akane becomes her brother's girlfriend, Ruby is seen following Akane's account. At that point, Aqua told Ruby beforehand that they only have a professional relationship. This causes Ruby to ruminate how scummy guys like him are the worst for not taking a 'cute' girlfriend like Akane seriously. Ruby then vows to be nice to Akane when they finally meet face to face, hoping that day comes soon.

As everyone gathers at the airport for the trip to Miyazaki, Ruby is ecstatic that she finally met Akane in person. She is instantly captivated by her looks and praises Akane's beauty and cuteness. Akane returns the gesture while remaining humble, complimenting Ruby as someone much prettier than herself, causing Ruby to beam in delight. Ruby is elated over her praise and asks if she can call her 'sis'. She shares how she always wanted an older sister and began questioning Akane when she would officially marry Aqua to become her sister-in-law. When interacting with the enthusiastic Ruby, Akane could only blush in response. Ruby then earnestly asks Akane to care for her 'incompetent' brother for a long time using the wedding vow phrase 'In sickness and in health'.

At Takachiho, Ruby is euphoric as Akane agrees to share a room with her. Ruby begins signing merrily about the sleepover on their way back. Ruby then shares how familiar she is with 'this place' and how significant it is to her. She then invites Akane to join B-Komachi as well, but Akane is apprehensive as she lacks the necessary skills to be an idol. In return Akane then asks if she’s interested in becoming an actress and offers to guide her if she wants. Ruby is delighted but says she will do so after fulfilling her idol dream.

Ruby then changes the subject and asks Akane about her views about age gap. Akane replies that the mental state and age matter the most to her, but she would be fine with a 10-year gap. Akane then follows with a question the reason for such a topic, with Ruby chuckling in response. Ruby confesses that she has a crush and the history behind said crush to Akane, stating 'sensei' gave her a purpose and that without him, she wouldn’t be able to live.

Akane empathizes, stating that having someone she loves is good and a little age gap will not matter in the face of true love. She even offers her help for such a pursuit but Ruby explains that she is unaware of where he has gone. Ruby trusts Akane enough to reveal all the embarrassing advances she once made, only to be rejected. Akane could only blush in response as she listened to Ruby venting. Despite Ruby's personality change, she still protects Akane's and Aqua's relationship as she chastises her friend for aiming for her brother when he already has a pretty girlfriend.

## Others

### Tsukuyomi

Tsukuyomi's first known interaction with Ruby takes place at Miyazaki after the corpse of Gorou is found, pointing out that Ruby took something from the corpse, which should should not have done. Ruby is at first annoyed by her presence but Tsukuyomi then proceed to give a story about Ai coming to the area all those years ago and that there were two suspicious men the night Ai gave birth. When Ruby asks her for more information, she simply replied that it's her duty to find out.

### Masaya Kaburagi

Ruby meets Masaya when she invites him to a B-Komachi concert and applies to be a reporter for *Dig Deep! One Chance*, which the latter gladly accepts due to her chemistry with Aqua. However, while acknowledging her acting talent, Masaya initially wanted to cast a more well-known performer in the starring role of Taishi's upcoming film, the *15-Year Lie*, when the director recommended her.

### Taishi Gotanda

Ruby and Taishi seem to be long acquaintances through the latter's relationship with her brother. Noticing her strong resemblance to Ai, Taishi wants to cast Ruby in the film about her mother that he is making.

## References

1. ↑ *Oshi no Ko* Manga:
 Chapter 33.
2. ↑ *Oshi no Ko* Manga:
 Chapter 53.
3. ↑ *Oshi no Ko* Manga:
 Chapter 71.
4. ↑ 4.0 4.1 *Oshi no Ko* Manga:
 Chapter 74.
5. ↑ *Oshi no Ko* Manga:
 Chapter 106.
6. ↑ *Oshi no Ko* Manga:
 Chapters 121-122.
7. ↑ *Oshi no Ko* Manga:
 Chapter 123.
8. ↑ *Oshi no Ko* Manga:
 Chapter 124.
9. ↑ *Oshi no Ko* Manga:
 Chapter 66.
10. ↑ *Oshi no Ko* Manga:
 Chapters 118-133.
11. ↑ *Oshi no Ko* Manga:
 Chapters 133-135.
12. ↑ *Oshi no Ko* Manga:
 Chapter 29.
13. ↑ *Oshi no Ko* Manga:
 Chapter 41.
14. ↑ *Oshi no Ko* Manga:
 Chapter 77.
15. ↑ *Oshi no Ko* Manga:
 Chapter 79.