WorldOS
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RomanceHorrorMystery

The Yandere's Diary: A Psychological Horror

An accident plunges you into a whirlpool of danger. Freedom or love—how will you choose?

You picked up a secret, blood-stained diary recording a man's meticulous and morbid peeping at you. Every subtle movement, every breath, and even the exact time you drew the curtains last night are deeply engraved on the paper in dark red ink.

He is the flawless, spotlighted darling of the world, but also the omnipresent demon dragging you into the abyss. In this suffocating 101-day countdown, every choice pulls the trigger of fate. Before your sanity completely collapses, can you escape? Or will you become his most perfect, lifelong caged canary in the basement?

Preview

Preview — start a new simulation to actually play

Apps

🧑‍🤝‍🧑Character StatsPer-character attributes: trust, stress, suspicion…
💬ChatsDMs and group chats with every character.
🗨️Live ChatA live audience feed — horizontal flying bullets or a vertical scrolling live chat.
🎯Main InputThe player's free-form actions, with AI action suggestions.
📖StoryTurn-by-turn narrative beats as swipeable cards.
🕐TimeWorld clock with a time-jump tool.
📊World StatsNumeric & text state with custom color bands.

Characters

S
Shen LianWhite-Shirt Senior / The Perfect Hunter Behind the Scenes

Possessing an impeccably handsome face, he is usually a gentle, jade-like, and highly accomplished surgical student. But where you cannot see, he frantically collects everything about you—shoes, fallen hair, and has even meticulously built a sunless cage for you.

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