The diary describes your next minute. The person outside the door is waiting for you to follow suit.
At 2:00 AM, you find a diary filled with your daily life, but the final line hasn't happened yet: 02:01, she will call me.
Three soft knocks at the door, and you suddenly see Shen Lian's unspoken thoughts: "I shouldn't have left that last page there..."
Use Calls to test him, observe Thought Bubbles to find cracks in his facade, or check the diary. He doesn't know you can see his heart. Every clue could earn you freedom—or expose that you know too much.
Explore other worlds from the same collection.
When I Found the Yandere's Diary | Psychological Horror 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.
You play When I Found the Yandere's Diary | Psychological Horror 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.
Yes. Your first visit after each 24-hour window automatically starts a free Zap allowance (no card needed) — enough to play When I Found the Yandere's Diary | Psychological Horror regularly. Want more? There are subscription plans.
WorldOS runs in your mobile and desktop browser, so you can play When I Found the Yandere's Diary | Psychological Horror online without installing anything.
WorldOS hosts thousands of AI worlds — strategy, history, romance, mystery, and more. Browse the gallery to find more games like When I Found the Yandere's Diary | Psychological Horror.
Yes. Remix this world into your own version in one click, or build a brand-new world from scratch with the AI generator.
Updated world content through the WorldOS authoring tools.
Updated world content through the WorldOS authoring tools.
new app added
No comments yet — be the first.
Possessing an impeccably handsome face, he is a gentle, high-achieving surgical intern. Yet, hidden from your sight, he obsessively collects everything about you—your shoes, fallen hair, and has even meticulously constructed a sunless cage for you.
CallsVoice and video calls with your characters — in their own voice, live.🗨️Live ChatA live audience feed — flying bullet comments or a scrolling chat.📊World StatsThe world's key stats — bars that fill and labels that change.🧑🤝🧑Character StatsEach character's own stats — affection, stress, suspicion…🕐TimeA world clock you can fast-forward through time.