Aquamarine Hoshino: Profile, Father's Birth, and Interesting Facts
In anime Oshi no Ko colorful, there are always characters who appear not only as main characters, but as symbols of wounds, ambitions, and hidden truths.
Aquamarine Hoshino appears as a mysterious and emotional figure, bringing a story that is not only centered on the world of entertainment, but also on trauma and the search for identity.
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With a cold personality and a heavy life goal, Aqua has been a character that has invited curiosity since her first appearance.
This article will invite you to dig deeper into who he really is, how his past shaped his present character, and interesting facts that fans rarely discuss.
Also read:
- Aqua Hoshino, the Handsome Talented Actor in Oshi No Ko
- Ruby Hoshino Profile and Facts in Anime Oshi no Ko
- Interesting Facts About Akane Kurokawa in the Anime Oshi no Ko
Who is Aqua Hoshino?

Aquamarine Hoshino or known as Aqua Hoshino is one of the main characters in the anime and manga Oshi no Ko by Aka Akasaka and illustrator Mengo Yokoyari.
Aqua is the biological daughter of the famous idol Ai Hoshino and has a complex, cold, and vengeful personality. Unlike her younger sister, Ruby Hoshino, Aqua is more introverted and single-minded: finding out who killed her mother and avenging her.
Aqua is known for her intelligence, manipulative nature, and quick reading of situations. In the story, she even chose to enter the entertainment industry solely to gather information about her biological father, who is believed to be the mastermind behind Ai Hoshino's death.
Interestingly, before being born as Aqua, he was a pediatrician named Gorou Amamiya who was murdered and reincarnated as baby Ai Hoshino.
This means that Aqua has memories from her previous life, making this character have a much heavier psychological layer than other characters.
Aqua Hoshino's Father

Aqua Hoshino's father is a very mysterious figure and is the main focus of the story. In the series Oshi no Ko, the identity of Aqua and Ruby's father is not immediately revealed, but several clues point to a man from the entertainment industry who has strong influence.
According to the development of the story manga (without major spoilers), Aqua's father:
- Allegedly had an affair with Ai Hoshino before she became famous.
- Not an ordinary person, most likely someone with high status or a public figure.
- Aqua suspects that her father was involved in the tragic incident that befell Ai.
Aqua herself is emotionally trapped between curiosity, anger, and inner pain from seeing her mother die.
That's the main reason why he grew into a cold and calculating character. All his actions in the entertainment world weren't for popularity, but as an investigative strategy.
Interesting Facts about Aqua Hoshino

Here are some interesting facts you should know about Aqua Hoshino:
Was a Doctor in a Previous Life
Aqua was previously a pediatrician named Gorou. He died after being murdered by Ai Hoshino's stalker. This fact explains why Aqua has been emotionally mature and thinks like an adult since childhood.
Has a Complicated Relationship with Hibiki (Akane Kurokawa)
Aqua formed a relationship with Akane as part of her plan, not out of feelings. But she slowly began to develop feelings for Akane. On the other hand, she also developed a special bond with Kana Arima.
Very Smart and Manipulative
Aqua often uses others to achieve her goals. She can make extreme decisions to get closer to the truth about her father. She even considered sacrificing herself.
Has a “Dark Star” Symbol
While Ruby Hoshino has shining stars in her eyes, Aqua has dark ones. This symbolizes their differing life goals: Ruby pursues her dreams, Aqua pursues truth and revenge.
Don't Want to Be an Idol
Unlike Ruby, Aqua isn't interested in becoming an idol. She's more comfortable acting or working behind the scenes because it supports her research.
Becoming a Fan Favorite Character
Due to her complex character, Aqua is often considered one of the most “realistic and dark” protagonists in modern anime.
Aqua Hoshino is not just a main character in Oshi no Ko, but a representation of someone traumatized and living with the burden of the past. Full of intrigue, intelligent, and haunted by revenge, Aqua is a character that makes this story even more interesting.
If you enjoy anime with strong psychological plots, mysteries, and drama, following Aqua Hoshino's character development will be an extraordinary experience. It's possible that Aqua's father's identity will significantly change the course of the story in the future.
Also read:
- Akane Kurokawa: Interesting Facts and Her Role in Oshi no Ko
- Tips to Become a Cute and Talented Idol from Akane Oshi no Ko
- Uncovering the Heartbreaking Story of Ruby Hoshino's Oshi No Ko
Hopefully this article can help you understand more deeply about Hoshino AquamarineDon't forget to follow the manga and anime updates, because the journey is far from over.
