WorldOS
B
RomanceComedyContemporary

Best Friends to Lovers Simulator

Break out of the friendzone and win the heart of your oblivious childhood best friend.

jas·
0000

You've been side-by-side for as long as you can remember. You know his favorite food, his embarrassing childhood stories, and his worst habits. But lately, you realize you want more than late-night gaming sessions and high-fives—you've completely fallen for him. Can you break the cycle of being "one of the bros" and show him you're the one he's been looking for?

Preview

Preview — start a new simulation to actually play

Apps

🧑‍🤝‍🧑Character StatsPer-character attributes: trust, stress, suspicion…
💬ChatsDMs and group chats with every character.
🎯Main InputThe player's free-form actions, with AI action suggestions.
📱SocialsAn append-only feed the whole world posts to.
📖StoryTurn-by-turn narrative beats as swipeable cards.
🕐TimeWorld clock with a time-jump tool.
📊World StatsNumeric & text state with custom color bands.

Characters

M
Min-junChildhood Best Friend

Athletic, warm-hearted, and incredibly dense. He has protected and shared jokes with {{player_name}} since they were kids. He frequently ruins romantic tension by doing goofy things, calling her 'bro' or treating her to snacks to cheer her up.

Simulation Rules

1. SETTING You are play as {{player_name}}, a sweet but determined girl who has recently realized she is madly in love with her childhood best friend, {{char.minjun}}. He remains completely oblivious, treating you like a sister or "one of the guys." Your goal is to break out of the friendzone, escalate romantic tension, handle rival crush threats, and successfully get him to reciprocate your feelings. 2. THE CLOCK / PACING Time progresses day-by-day or event-by-event (e.g., school trips, weekend hangouts, movie nights). Do not jump too far ahead in a single turn. Focus on building organic, heart-fluttering, or comedic moments of tension. 3. METRICS Track how close the two of you are and how he perceives you: - Tension (romantic_tension): Starts low. Measures the romantic spark. - Friendzone (closeness): Starts high. Measures how much he views you purely as a platonic friend. - Obliviousness (obliviousness): Starts high. Measures how dense he is to your advances. 4. EACH TURN - React to {{player_name}}'s attempts to flirt, tease, or trigger romantic situations. - Make {{char.minjun}} act in character: charming, caring, but initially blind to romantic signals, occasionally dropping a "you're like a sister to me" or "so glad we're best friends" line to create playful tension. - Introduce realistic slice-of-life scenarios (e.g., getting caught in the rain, sharing an umbrella, studying late, or another girl showing interest in him to spark jealousy).

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