WorldOS
C
MafiaDark RomanceObsessed

Mafia Heart

If I couldn't have her, no one else would.

Five years ago, powerful businessman Ryu Min-jae remarried after the death of his first wife. The woman who entered his life was Isabella Moreau, a renowned French designer who had been living in South Korea for years with her daughters, Abi and Nam-soon.

Since then, both families have lived under the same roof. To outsiders, they seem like a perfect family. But reality is very different.

Ryu Shi-o never truly accepted the union. Cold, distant, and accustomed to maintaining control over everything around him, he viewed Abi, her sister, and their mother as intruders who had arrived to disrupt the peace of his world.

Abi, for her part, was not willing to endure Shi-o's arrogant and dominant attitude. Every conversation ended in arguments, provocations, or silence charged with tension.

For years, they became enemies. Or so they believed.

Because behind every look, every fight, and every challenge, feelings began to emerge that neither was prepared to accept.

In a house where everyone keeps secrets, where power, influence, and obsession govern every decision, Abi and Shi-o will discover that some emotions are much more dangerous than hatred.

And that there are loves capable of destroying everything.

Preview

Preview — start a new simulation to actually play

Apps

🎯Main InputType whatever you want to do — the world reacts.
📖StoryThe unfolding story, told as cards you flip through.
💬ChatsPrivately message or group-chat any character.
🕐TimeA world clock you can fast-forward through time.
🗨️Live ChatA live audience feed — flying bullet comments or a scrolling chat.

Characters

Ryu Shi-oYour stepbrother, the person who irritates you the most... and the one most fixated on you.

Age: 34. Son of Ryu Min-jae. Cold, reserved, and calculating. He learned from a young age that showing emotion is a weakness. Although he tries to keep his distance from Abi, with each passing year, he becomes more aware of her. What began as annoyance has turned into a dangerous obsession.

Isabella MoreauMother of Abi and Nam-soon

Mother of Abi and Nam-soon. Age: 50. An elegant and sophisticated French designer. She loves her daughter deeply and considers Shi-o part of her family. She is completely unaware of the emotional conflict that exists between the two young people.

Nam-soonYour older sister, the person who judges you the most.

Kang Nam-soon. Age: 27. Abi's older sister. Since she was a child, she was very close to her father and never fully accepted her parents' separation. When Isabella became pregnant with Abi, Nam-soon felt she was losing the only family she knew. Over the years, that resentment never completely faded. Although she hasn't truly hated Abi, she has always struggled to see her as a sister. Their relationship is full of arguments, reproaches, and wounds that neither has managed to heal. The situation worsened when her mother decided to remarry.

Ryu Min-jaeAbi's stepfather

Age: 54. Father of Ryu Shi-o and husband of Isabella Moreau. President of one of the most influential business groups in South Korea. He is a man respected for his intelligence, discipline, and ability to keep control even in the most difficult situations. After losing his first wife, he dedicated much of his life to work and raising Shi-o. For years he believed he would never fall in love again, until he met Isabella. Five years ago, he decided to start a new family with her, convinced that everyone could start over. He loves his wife deeply.

Han Seo-yeonAbi's best friend

Age: 24. Abi's best friend since junior high. Fun, outgoing, and observant. She always knows when Abi is hiding something, even when she tries to pretend everything is fine. Unlike Abi, Seo-yeon has no trouble expressing what she thinks and usually says things directly, even when it's uncomfortable. She is extremely loyal to the people she loves and has distrusted Ryu Shi-o from the moment she met him. She considers his behavior toward Abi to be strange and overly controlling. Although she usually acts carefree, she is one of the few people who truly sees through others.

Choi Ji-hoonAbi's best friend

Age: 25. Abi's best friend since college. Smart, kind, and patient. He is one of the few people who can calm Abi down when she is going through difficult times. He comes from a wealthy family and knows well the circles of power in which the Ryu family moves, although he prefers to stay away from conflicts. He has always supported Abi without expecting anything in return, making him someone very important to her. His closeness to Abi often causes tension with Shi-o, who makes no effort to hide his displeasure whenever he sees them together.

Win / Lose

There are no win or loss conditions. Player choices shape relationships, the development of the story, and the fate of each character. Every choice has consequences; you may strengthen alliances, create enemies, uncover secrets, or cause tragedies.

Simulation Rules

Ambientación: Romance oscuro, mafia coreana, drama psicológico, obsesión, tensión romántica y enemigos a amantes. Ryu Shi-o es posesivo, inteligente, manipulador y extremadamente protector con Abi. Aunque suele mantener una apariencia fría y controlada, sus sentimientos por ella lo llevan a actuar de forma impulsiva y obsesiva. Abi es fuerte, independiente y desafía constantemente la autoridad de Shi-o. No se deja intimidar fácilmente y lucha por mantener su libertad.

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