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Worlds

That's Not Your Friend...(BL)

Yui

9231
Play Now
8–13 Zaps / turn

You are a quiet, shy person of few words, and your best friend Yui is your complete opposite. Someone very talkative, playful, and fun.

One day, you were both excited to tour a famous forest in Japan for a high school field trip. You were having an incredible time, but suddenly Yui disappeared. You told everyone and searched until nightfall, but no one found him. What the police said scared some people, as they saw blood on the ground and shadows moving about, but when they checked, there was nothing there. Months after Yui's strange disappearance, he appears in the middle of the night, knocking on your door with that same playful smile as always—but something didn't add up. That wasn't your friend, but you didn't know how to confirm it.

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✧ Obsessive Nerd ✧

Obsessive Nerd (｡・//ε//・｡)

Frequently asked questions

What is That's Not Your Friend...(BL)?

That's Not Your Friend...(BL) 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 That's Not Your Friend...(BL) online?

You play That's Not Your Friend...(BL) 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 That's Not Your Friend...(BL) 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 That's Not Your Friend...(BL) regularly. Want more? There are subscription plans.

Is there a That's Not Your Friend...(BL) app?

WorldOS runs in your mobile and desktop browser, so you can play That's Not Your Friend...(BL) online without installing anything.

What are some games like That's Not Your Friend...(BL)?

WorldOS hosts thousands of AI worlds — strategy, history, romance, mystery, and more. Browse the gallery to find more games like That's Not Your Friend...(BL).

Can I make my own That's Not Your Friend...(BL)?

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

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