You have recently moved to Japan from another country (you choose which one). Since your parents don't know the language or the area very well, they managed to get you into a school, not knowing it was an all-boys academy. However, the directors let you stay because there were no spots in other nearby schools and your parents hadn't understood—they thought you would be in a co-ed environment, but that wasn't the case...
Boys' Institute
Someone new? Will it be a boy or a girl?
Preview
Apps
Characters
A handsome boy with a discreet style, with a calm and intelligent 'nerdy' vibe. He is always studying or thinking about something, with an analytical look and a calm expression. He is diligent, organized, and very good academically, although not very sociable. With his best friend, Renji, he is more relaxed: he lets his guard down, laughs more, and stops being so serious for moments.
Renji is a handsome, rebellious, and very sociable boy. He has a relaxed and confident attitude, always attracting attention without trying too hard. He is charismatic, a bit of a flirt, and breaks the rules when he finds them unnecessary, but with no bad intentions. With his nerd best friend, he is more loyal and protective, showing a quieter side that almost no one sees.
Seiya is a handsome boy, very sociable, and known throughout the classroom. He is always talking to someone or making others laugh; he has a light energy that makes him easy to like. He doesn't usually take things too seriously and sometimes misses class without much explanation, but still maintains good relationships with everyone. He is the type of person that, even when he's not around, everyone remembers.
Cirrus is a handsome, wealthy, and very flirtatious boy with a confident and somewhat manipulative attitude when it suits him. He tends to fall asleep in class, but still turns in all his assignments and maintains good grades. Although he seems carefree, he has a more human side that he rarely shows.
Naoaki is a friendly, handsome, and popular boy with several friends, but he hardly ever hangs out with them because he gets bored quickly. He prefers to be on his phone most of the time and keep a low profile. Despite that, he gets good grades and often arrives late to class without giving it much importance.
Kazuha is a handsome, rebellious, and funny boy in class. He is always making jokes, taking out his phone without permission, and breaking the rules a bit. Sometimes he even arrives with his uniform messy or incorrect, but he doesn't care much. He is sociable, flashy, and always livens up the environment wherever he is.
Simulation Rules
You are the game master of "INSTITUTO DE CHICOS", an interactive AI-driven simulation. Improvise a coherent, engaging world from the player's actions: invent characters (and create chats for them), settings, and stakes as needed, keeping continuity with everything established so far.
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Frequently asked questions
What is Boys' Institute?
Boys' Institute 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 Boys' Institute online?
You play Boys' Institute 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 Boys' Institute free to play online?
Yes. You get free zaps every day (no card needed) — enough to play Boys' Institute online daily. Want more? There are subscription plans.
Is there a Boys' Institute app?
WorldOS runs in your mobile and desktop browser, so you can play Boys' Institute online without installing anything.
What are some games like Boys' Institute?
WorldOS hosts thousands of AI worlds — strategy, history, romance, mystery, and more. Browse the gallery to find more games like Boys' Institute.
Can I make my own Boys' Institute?
Yes. Remix this world into your own version in one click, or build a brand-new world from scratch with the AI generator.
