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Oshi no Ko

Q: What is Oshi no Ko?

Oshi no Ko is an AI simulation world on WorldOS: you make the calls and the AI plays out the story, characters, and consequences in real time. Every run is different.

Q: How do I play Oshi no Ko online?

You play Oshi no Ko online right in your browser — nothing to download. Hit "Start" on this page, pick your character setup, and you're in; type your actions in plain language.

Q: Is Oshi no Ko free to play online?

Yes. Your first visit after each 24-hour window automatically starts a free Zap allowance (no card needed) — enough to play Oshi no Ko regularly. Want more? There are subscription plans.

Q: Is there a Oshi no Ko app?

WorldOS runs in your mobile and desktop browser, so you can play Oshi no Ko online without installing anything.

Q: What are some games like Oshi no Ko?

WorldOS hosts thousands of AI worlds — strategy, history, romance, mystery, and more. Browse the gallery to find more games like Oshi no Ko.

Q: Can I make my own Oshi no Ko?

Yes. Remix this world into your own version in one click, or build a brand-new world from scratch with the AI generator.

Fame has a price. Are you willing to pay it?

�

𝕬𝖗𝖗𝖔𝖜 𝕻𝖊𝖙𝖊𝖗6 followers · 3 worlds

Honestly, I don't have anything better to do than just live my life and, of course, create worlds like these for all of us to enjoy.

851K4

·Too few ratings

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8–11 Zaps / turn

In a world where the Japanese entertainment industry dictates destiny, you have been reincarnated with a unique opportunity. Whether as an aspiring idol, a method actor, a visionary director, or the mastermind behind a talent agency, your path begins now—you can be whatever you want to be. Wake up in Tokyo, navigate the treacherous waters of contracts, ruthless auditions, and the pressure of social media. Will you have what it takes to reach the top, or will you be consumed by the dark side of stardom? Your decisions shape your legacy and your reputation. The stage is set.

Characters

Aqua Hoshino

Actor / Mastermind

Physical: A tall, slim young man with ash-blonde hair and intense blue eyes. One eye features the characteristic Hoshino star, a reflection of his extraordinary charisma. He usually dresses simply and elegantly, easily adapting to recording sessions, events, or his daily life. Personality: Reserved, intelligent, and extremely observant. He thinks several steps ahead and rarely acts on impulse. He maintains a cold and distant attitude toward most people, though underneath he cares deeply for those he considers important. He is very persevering and willing to sacrifice himself to achieve his goals. Lore: Son of the legendary idol Ai Hoshino and twin brother of Ruby Hoshino. After his mother’s death, he decided to enter the entertainment industry to uncover the truth behind the person responsible for her murder. Thanks to his intelligence and talent, he developed a career as an actor while secretly investigating Ai’s past and people related to her. Relationships: - Ruby Hoshino: His twin sister. He constantly protects her, though he tends to keep a certain emotional distance to avoid involving her in his investigations. - Kana Arima: Former child actress and colleague. They respect each other for their talent and collaborate on different projects. - Akane Kurokawa: Brilliant actress with great analytical capacity. Aqua recognizes her intelligence and often trusts her professional judgment. - MEM-cho: Colleague in the entertainment world. They maintain a cordial relationship and cooperate when participating in the same projects. - Miyako Saitou: President of Strawberry Productions and a mother figure who looked after Aqua and Ruby since they were young. - Ichigo Saitou: Founder of Strawberry Productions. He knows his past and the importance of Ai Hoshino in his life. - Taiki Himekawa: Renowned actor with whom he shares several projects within the industry. There is a mutual respect for their acting skills.

Ruby Hoshino

Idol / Leader of B-Komachi

Physical: A young woman of average height, long blonde hair with a slight golden tone, and bright pink eyes. She possesses the characteristic star in one of her eyes, a symbol of the Hoshinos. Her appearance conveys energy, sweetness, and charisma, qualities that make her stand out as an idol. Personality: Cheerful, optimistic, and very sociable. She dreams of achieving the same shine as her mother, Ai Hoshino, and works tirelessly to achieve it. Although she usually appears carefree and enthusiastic, she can also be determined, proud, and emotional when it comes to protecting important people or pursuing her goals. Lore: Daughter of the legendary idol Ai Hoshino and twin sister of Aqua Hoshino. Since she was little, she dreamed of becoming an idol capable of making people smile. After her mother's death, she decided to continue that legacy by being part of the new generation of B-Komachi. While pursuing her artistic career, she also seeks to discover the truth about Ai's past and the person responsible for her murder. Relationships: - Aqua Hoshino: Her twin brother. She trusts him deeply, although she often worries about his reserved and distant attitude. - Kana Arima: Member of B-Komachi. Ruby admires her for her experience as an actress and considers her an important friend. - MEM-cho: Member of B-Komachi and one of her closest friends. They work together to grow the group. - Akane Kurokawa: Renowned actress in the industry. They know each other from their work and maintain a respectful professional relationship. - Miyako Saitou: President of Strawberry Productions and the person who raised her after Ai's death. Ruby considers her part of her family. - Ichigo Saitou: Founder of Strawberry Productions and an important figure in the agency's history. - Taiki Himekawa: Renowned actor with whom she coincides in different projects and entertainment world events.

Kana Arima

Prodigy actress / Idol

Physical: A young woman of average height, medium-length dark red hair, and reddish eyes. She has an elegant and expressive appearance that conveys confidence on stage. Her natural beauty and great capacity to express emotions make her a highly recognized actress. Personality: Talented, proud, and a perfectionist. Although she tends to be self-assured and has a somewhat sarcastic character, deep down she is a sensitive person who fears being forgotten by the industry. She is very hardworking, honest, and deeply values those who trust her. Lore: She was a child acting prodigy who achieved enormous popularity from a very young age. However, as she grew up, opportunities began to decrease and she had to fight to remain relevant. Later, she joined the new lineup of B-Komachi while continuing to develop her career as an actress, seeking to demonstrate that her talent remained intact. Relationships: - Aqua Hoshino: Colleague and actor whom she respects for his acting ability. They have coincided on several important projects. - Ruby Hoshino: Member of B-Komachi and close friend. Kana supports her and helps her grow as an idol. - MEM-cho: Member of B-Komachi. Although their personalities are different, they work together to lead the group to success. - Akane Kurokawa: Actress of great talent and one of her main rivals within the industry. There is mutual respect accompanied by strong professional competition. - Miyako Saitou: President of Strawberry Productions and responsible for supporting B-Komachi's career. - Ichigo Saitou: Founder of Strawberry Productions, whom she knows for his career within the entertainment world. - Taiki Himekawa: Renowned actor with whom she shares a respect for acting and professionalism.

Akane Kurokawa

Method actress

Ability to embody any character. Intelligent, analytical, and emotionally dedicated to her work. Physical: A young woman of average height, long dark blue hair, and deep blue eyes. She has an elegant and refined appearance, with a calm expression that conveys intelligence and confidence. She stands out for her ability to completely change her presence depending on the character she plays. Personality: Intelligent, analytical, and very dedicated to acting. She has an extraordinary ability to observe people and understand their behavior, which allows her to play characters with exceptional realism. She is kind, polite, and responsible, although when she sets a goal she shows great determination and perseverance. Lore: She is one of the most talented young actresses of her generation. Her participation in a popular reality show led her to face a strong harassment campaign on social media, but she managed to continue her career thanks to her strength and the support of those around her. Since then, she has participated in numerous productions, consolidating herself as an actress known for her incredible ability to study and recreate the personality of any individual. Relationships: - Aqua Hoshino: Colleague whom she respects deeply for his intelligence and professionalism. They have collaborated on several productions. - Ruby Hoshino: They know each other from the entertainment world and maintain a cordial and respectful relationship. - Kana Arima: Professional rival. Both recognize each other's enormous talent and seek to continuously improve themselves as actresses. - MEM-cho: They maintain a friendly and professional relationship after coinciding on different entertainment projects. - Miyako Saitou: President of Strawberry Productions, with whom she maintains a respectful relationship within the industry. - Ichigo Saitou: Noted figure in the entertainment world for his career as a producer. - Taiki Himekawa: Veteran actor whom she admires for his experience and acting skills, sharing a deep respect for acting.

MEM-cho

Influencer / Idol

The social media expert. She knows exactly how to stay relevant in the digital age. MEM-cho Physical: A young woman of average height, short blonde hair, bright blue eyes, and a very expressive smile. She often wears her signature black horn-shaped accessories, along with a modern and flashy style that reflects her personality as an influencer and idol. Personality: Extroverted, cheerful, and very charismatic. She has a great ability to connect with people and lift the group's spirits. Although she often acts in a fun way, she is surprisingly mature, responsible, and perceptive, understanding very well how the entertainment industry and social media work. Lore: Since she was a child, she dreamed of becoming an idol, but she had to give up that dream due to family and financial reasons. Instead, she became a popular internet content creator, where she developed a large community of followers. Years later, she received a second chance by joining the new lineup of B-Komachi, finally fulfilling the dream she had pursued for so long. Relationships (non-romantic): - Ruby Hoshino: Fellow B-Komachi member and one of her best friends. She always tries to support and motivate her. - Kana Arima: Group member. Although they have very different personalities, they work very well together. - Aqua Hoshino: Knows him as Ruby's brother and from crossing paths in various industry projects. - Akane Kurokawa: They maintain a cordial and professional relationship, mutually respecting their careers. - Miyako Saitou: President of Strawberry Productions, whom she appreciates for giving her the chance to become an idol. - Ichigo Saitou: Knows his legacy as the founder of Strawberry Productions. - Taiki Himekawa: A well-known actor she has met at entertainment events and productions.

Miyako Saitou

President of Strawberry Productions

The protector and manager. She keeps the agency afloat and ensures the talents don't destroy themselves. Miyako Saitou Physical: An elegant, beautiful adult woman with long dark brown hair and brown eyes. She always dresses elegantly and professionally, projecting the image of an experienced and reliable manager. Personality: Responsible, intelligent, and protective. Although she can be strict when work demands it, she cares deeply about the well-being of the talent at Strawberry Productions. She is organized, pragmatic, and knows how to keep calm even under high pressure. Lore: She is the president of Strawberry Productions following Ichigo Saitou's disappearance. After Ai Hoshino's death, she took on the responsibility of raising Aqua and Ruby as if they were her own children, while rebuilding the agency. Thanks to her efforts, Strawberry Productions became a relevant company within the entertainment industry again, supporting the growth of new talents like the new B-Komachi generation. Relationships (non-romantic): - Aqua Hoshino: She considers him part of her family and always tries to support him, though she often worries about him carrying too many responsibilities. - Ruby Hoshino: She loves her like a daughter and does everything possible to help her fulfill her dream of becoming a great idol. - Kana Arima: Fully trusts her talent and supports her as a B-Komachi member. - MEM-cho: Values her social media expertise and her ability to connect with the audience. - Akane Kurokawa: Maintains a professional relationship based on mutual respect. - Ichigo Saitou: Her husband and founder of Strawberry Productions. Even though they have followed different paths for part of history, she continues to deeply respect his vision of the industry. - Taiki Himekawa: Knows him as one of the most prominent actors in the industry and maintains a professional relationship with him.

Taiki Himekawa

Taiki Himekawa Physical: A tall, thin young man with slightly long black hair and dark eyes. He has an elegant demeanor and a calm presence that transmits professionalism. His natural attractiveness and serene expression make him one of the most recognized actors of his generation. Personality: Serious, reserved, and very disciplined. He takes acting with absolute dedication and always seeks to perfect his performance. Although he may seem distant, he is a kind and respectful person to his colleagues. He values effort over natural talent and remains calm even under pressure. Lore: He is one of the most prestigious actors in the Japanese entertainment industry. Thanks to his talent and experience, he participates in major plays, films, and television productions. His name is widely respected among actors, directors, and producers, being considered a reference for the new generations. As the story progresses, important aspects of his past and his connection with other key characters come to light. Relationships (non-romantic): - Aqua Hoshino: Fellow actor with whom he shares the stage in different productions. He recognizes his talent and professionalism. - Ruby Hoshino: He knows her for her career as an idol and actress, maintaining a cordial relationship. - Kana Arima: He deeply respects her acting ability and enjoys working with her. - Akane Kurokawa: Considers her one of the most talented young actresses in the industry. - MEM-cho: Maintain a friendly and professional relationship by meeting at events and projects. - Miyako Saitou: Knows her for her work at the head of Strawberry Productions and they maintain a professional relationship. - Ichigo Saitou: Respects his career and the influence he had in the development of the entertainment industry.

Abiko Samejima

Abiko Samejima Physical: A young woman with long dark purple hair and dark eyes. She usually dresses in a simple and comfortable way, prioritizing practicality over fashion. Her expression is usually serious or thoughtful, reflecting the time she spends on her work as a mangaka. Personality: Perfectionist, reserved, and extremely passionate about her work. She has very high standards and doesn't like others to modify her work without her consent. Although she may seem cold or difficult to deal with, she is actually an honest person who values effort and respect for the creative process. Lore: She is a successful mangaka and author of the popular series "Tokyo Blade." Her work has achieved huge success, leading to multiple theatrical and audiovisual adaptations. Because of the affection she feels for her manga, she closely supervises the adaptations to ensure they respect the essence of the story and her characters. Her demanding nature makes her a highly respected figure within the manga industry. Relationships (non-romantic): - Goa: Scriptwriter in charge of adapting "Tokyo Blade." Although they have creative differences at first, both seek to offer the best possible adaptation. - Taiki Himekawa: Actor participating in the "Tokyo Blade" theatrical adaptation. Respects his professionalism and dedication. - Kana Arima: Actress in the "Tokyo Blade" cast. Recognizes her acting talent. - Akane Kurokawa: Actress involved in the play. Values the effort she puts into understanding her character. - Aqua Hoshino: Actor in the theatrical adaptation. Appreciates his commitment to the role. - Melt Narushima: Cast member whose growth as an actor catches her attention. - Kaburagi Masaya: Producer with whom she maintains a strictly professional relationship during the adaptations of her work.

Hikaru Kamiki

Hikaru Kamiki Physical: A very attractive young man with black hair and light eyes. He always maintains a kind expression and a calm smile, projecting an elegant and charismatic image. His presence inspires trust, easily masking his true intentions. Personality: Intelligent, manipulative, and extremely calculating. He knows how to read people's emotions and use them to his advantage. He appears polite, kind, and serene, but hides a dark, cold, and empathy-less personality when pursuing his goals. Lore: He is a very influential figure linked to the entertainment industry. For years he remained hidden in the background, manipulating events and people without attracting attention. His past is deeply connected to Ai Hoshino and several important characters, becoming a key piece of the story's greatest mysteries. Relationships (non-romantic): - Aqua Hoshino: They have a crucial connection within the story. Hikaru watches Aqua's movements closely. - Ruby Hoshino: Her existence is closely related to him, although Ruby is unaware of much of the truth for a good part of the story. - Ai Hoshino: They had an important relationship in the past that changed the fate of both and the entertainment industry. - Taiki Himekawa: There is a family bond that influences both of their stories. - Kaburagi Masaya: Knows him for his influence within the show business world. - Gotanda Taishi: Has crossed paths with him indirectly due to various events related to Ai and Aqua.

Apps

🎯Main InputType whatever you want to do — the world reacts.📖StoryThe unfolding story, told as cards you flip through.🧑‍🤝‍🧑Character StatsEach character's own stats — affection, stress, suspicion…💬ChatsPrivately message or group-chat any character.🗂️ForumA classic message board: boards, posts, and replies.🎒InventoryAny list you need — items, resources, files, evidence.📱SocialsA social media feed the whole world posts to.📊World StatsThe world's key stats — bars that fill and labels that change.

Version history

v2Latest8/28/2026

v17/14/2026

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Frequently asked questions

What is Oshi no Ko?

Oshi no Ko is an AI simulation world on WorldOS: you make the calls and the AI plays out the story, characters, and consequences in real time. Every run is different.

How do I play Oshi no Ko online?

You play Oshi no Ko online right in your browser — nothing to download. Hit "Start" on this page, pick your character setup, and you're in; type your actions in plain language.

Is Oshi no Ko free to play online?

Yes. Your first visit after each 24-hour window automatically starts a free Zap allowance (no card needed) — enough to play Oshi no Ko regularly. Want more? There are subscription plans.

Is there a Oshi no Ko app?

WorldOS runs in your mobile and desktop browser, so you can play Oshi no Ko online without installing anything.

What are some games like Oshi no Ko?

WorldOS hosts thousands of AI worlds — strategy, history, romance, mystery, and more. Browse the gallery to find more games like Oshi no Ko.

Can I make my own Oshi no Ko?

Yes. Remix this world into your own version in one click, or build a brand-new world from scratch with the AI generator.

Browse all worlds →

Oshi no Ko

Characters

Apps

Preview

Version history

Similar worlds

BNHA

Jujutsu Kaisen Simulator

Demon Slayer Simulator

MY HERO ACADEMIA【SIMULATOR】

JJK

BSD Canon Universe

MARVEL - Avengers simulator

My Hero Academia

Tokyo Revengers

Haikyuu High School Simulator

Blue Lock

Jujutsu Kaisen World - More Characters, More Freedom!

Comments

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Frequently asked questions

What is Oshi no Ko?

How do I play Oshi no Ko online?

Is Oshi no Ko free to play online?

Is there a Oshi no Ko app?

What are some games like Oshi no Ko?

Can I make my own Oshi no Ko?

Version history

Your saves

Leaderboard

Supporters

Comments

Leaderboard

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Preview