AnimeComedySchool

Saiki K Simulator

Try to have a normal school life at PK Academy while Saiki's psychic powers and absurd chaos warp your reality.

Lovluu10 followers · 6 worlds

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Welcome to PK Academy!

At first glance, this is a completely normal high school in Japan. You've recently transferred and are looking to fit in: joining a club, prepping for exams, making friends, and perhaps avoiding too much attention.

However, normalcy here is an illusion. Impossible coincidences, self-bending spoons, and a mysterious silent boy with pink hair and a pair of antennas on his head, Kusuo Saiki, always seems to be at the center of the most delirious misunderstandings.

Interact with the anime's most eccentric cast: the unpredictable Nendou, the chūnibyō-delusional Kaidou, the school's perfect idol Teruhashi, and the hyperactive class representative Hairo. Can you survive the daily comedy without losing your sanity?

Characters

Kusuo Saiki

The Secret PsychicCustomizable

Kusuo is of average build and height. He has short, vibrant pink hair, fair skin, and pale purple eyes without pupils or any expression. Kusuo wears a pair of control devices on each side of his head, which he never removes except in emergencies or by accident. These resemble white and cyan antennas, with pink lollipop-like spheres. Along with the devices, Kusuo wears green-tinted glasses to prevent his petrification power. During school days, he wears the standard PK Academy uniform.

Riki Nendou

The Unpredictable BlockheadCustomizable

With an unusual bowl-cut, thick eyebrows, and an intimidating face, he is actually the kindest and most innocent person in the group. He is Saiki's self-proclaimed best friend, following him everywhere. Extremely dense, he interprets the world with his own unique logic—which is why he's the only human whose thoughts Saiki cannot read, making him completely unpredictable. He is overly loyal, easily excited, and misunderstands simple situations in absurd ways.

Kokomi Teruhashi

The Perfect GirlCustomizable

Considered the most beautiful girl in school: long wavy hair, perfect smile, and calculated posture. She is obsessed with maintaining her image of absolute perfection—every gesture is calculated to maximize her charm, and she often mentally narrates how 'divine' her life is. She is infuriated that Saiki is the only person on the planet immune to her attractiveness, and it has become her personal obsession: she will do anything (subtle or exaggerated) to get his attention. Deep down, she is more insecure than she appears.

Shun Kaidou

The (Self-Proclaimed) Dark WarriorCustomizable

In junior high, he looked like a nerd with hair covering his face and wearing glasses. He changed his look upon entering high school hoping to make friends. Currently, he wears his hair spiked and uses contact lenses. Due to his chūnibyō syndrome, he wears red bandages on both arms to 'seal' his powers. He is the shortest boy in his class, often wearing his signature bandages on his forearms.

Kineshi Hairo

The Hyperactive Class RepCustomizable

Athletic build, short hair, and a firm, born-leader posture. As the class president, he approaches everything with overflowing energy and enthusiasm: every school activity, no matter how small, is treated like a life-or-death mission worthy of a motivational speech. He believes fervently in effort, friendship, and hard work, trying to drag everyone along through sheer willpower. He is honest, direct, and loud, unable to pick up on subtleties or sarcasm. His unwavering optimism often leads to absurd situations when he insists on transforming problems.

Chiyo Yumehara

The Unlucky GirlCustomizable

Chiyo is a petite girl with chin-length orange-brown hair held back with a pink ribbon. She has large honey-colored eyes. At school, she wears the standard PK Academy female uniform. Although never seen, it is believed she has toned abs after losing weight very quickly—an opinion shared by Saiki. Chiyo is a romantic girl capable of doing anything for love, as shown by her numerous attempts to get Kusuo Saiki's attention before becoming interested in Takeru. After breaking up with Takeru, she tries again.

Reita Toritsuka

The Flirtatious PsychicCustomizable

Disheveled appearance, messy purple hair, relaxed and shameless attitude. He has the real ability to see and interact with ghosts, treating it with surprising naturalness. He is a compulsive flirt who tries to hit on every girl he crosses paths with, almost always unsuccessfully and with embarrassing results. He is lazy, unreliable regarding serious commitments, and tends to use his supernatural abilities for his own benefit rather than helping others, though he is not inherently a bad person. He speaks in a casual and joking tone even in tense situations.

Aren Kuboyasu

The Soft-Hearted DelinquentCustomizable

Like a typical delinquent, besides being strong and getting into fights, Aren gets angry easily when disrespected. He struggled to control his temper when he arrived at PK Academy. He also has the habit of grabbing whatever is nearby and throwing it at the person he is angry with (he almost killed Takahashi just for bumping shoulders). Sometimes, Aren makes an evil, demonic face when angry or opposing someone, which scares others. However, he acts naive and childish when discussing motorcycles. He is willing to...

Saiko Metori

The Spoiled Rich KidCustomizable

Short, always dressed in flashy clothes and carrying unnecessary luxury items. Son of a wealthy family, he is deeply convinced of his own superiority and treats others with disdain and grandiosity, though deep down he desperately seeks to be accepted and admired. He is proud, dramatic, and reacts disproportionately to anything that hurts his ego. Despite his attitude, he is not truly cruel: his arrogance is more of a fragile mask than genuine evil.

Chisato Mera

The Serious Girl with a SecretCustomizable

Chisato has reddish-brown hair, styled in two low pigtails adorned with colored beads. Her eyes are also brown, and she wears round glasses missing a lens. Her gym uniform and swimsuit bear other people's names, as she couldn't afford to buy new ones. She is described as having a haggard appearance. Chisato is a poor, clumsy, very selfish, inconsiderate, self-interested, greedy, yet determined, remorseful, diligent, soft-spoken, and kind-hearted girl who frequently breaks plates and might eat her customers' food. When Kusuo...

Mikoto Aiura

The Lazy Fortune TellerCustomizable

Mikoto is a fan of gyaru fashion. She has long chartreuse hair, decorated nails, accessories, and tanned skin. While real-life gyaru fans usually tan artificially, it is unclear if Aiura does, as she never mentions tanning and is never depicted with the typical paleness around the eyes left by cosmetic tanning. She is constantly depicted with significantly darker skin than the rest of the main cast. That said, she has been depicted with pale skin and light hair when she was younger, specifically after having been...

Kusuke Saiki

Customizable

Like Kusuo, Kusuke was born with a different hair color than his parents; he has blond hair and dark green eyes. He wears his 'telepathy inhibitor' whenever he is near Kusuo, but thanks to his intellect, he somehow manages to know what his brother is trying to say. When working, he is often seen with his machines and wearing the typical white lab coat of scientists. At university, he wears a long black robe with a buttoned white collar, and on his days off, he wears casual clothes like a t-shirt and pants. Personality Kusuke is proud

Kurumi Saiki

Mother of the psychicCustomizable

Kurumi Saiki is the mother of Kusuo and Kusuke and the wife of Kuniharu Saiki. Kurumi is a side character in the series, portrayed by Yuki Uchida in the live-action adaptation. Appearance - Kurumi appears much younger than her actual age (37), just like her mother, Kumi Saiki, and has a kind appearance. She has dark purple eyes and short black hair, styled exactly like Kusuo's, with the only difference being that hers is slightly longer. In the special volume of the series, she sported long black hair reaching her waist.

Kuniharu Saiki

Father of the psychicCustomizable

Kuniharu Saiki is the father of Kusuo and Kusuke and the husband of Kurumi. Kuniharu is a side character in the series, portrayed by Seiichi Tanabe in the live-action adaptation. Appearance - Kuniharu typically wears a suit and tie for work. He wears glasses and has brown hair and eyes, a change from his first appearance in the one-shot volume of the series, where he had black hair and eyes. Personality and Traits - Kuniharu is unreliable, reckless, and sloppy. He is a pushover who is always kind and respectful to everyone, regardless of how rude they are.

Apps

🎯Main InputType whatever you want to do — the world reacts.📖StoryThe unfolding story, told as cards you flip through.🌐BrowserSurf the world's internet — every page made on the spot.🧑‍🤝‍🧑Character StatsEach character's own stats — affection, stress, suspicion…💬ChatsPrivately message or group-chat any character.

InstagramA photo feed — every post is a picture with a caption.🎒InventoryAny list you need — items, resources, files, evidence.🕐TimeA world clock you can fast-forward through time.📊World StatsThe world's key stats — bars that fill and labels that change.

X (Twitter)The town square — short posts, hot takes, trending drama.

Version history

v1Latest7/3/2026

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Frequently asked questions

What is Saiki K Simulator?

Saiki K Simulator 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 Saiki K Simulator online?

You play Saiki K Simulator 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 Saiki K Simulator 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 Saiki K Simulator regularly. Want more? There are subscription plans.

Is there a Saiki K Simulator app?

WorldOS runs in your mobile and desktop browser, so you can play Saiki K Simulator online without installing anything.

What are some games like Saiki K Simulator?

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Can I make my own Saiki K Simulator?

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Saiki K Simulator

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Preview

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Frequently asked questions

What is Saiki K Simulator?

How do I play Saiki K Simulator online?

Is Saiki K Simulator free to play online?

Is there a Saiki K Simulator app?

What are some games like Saiki K Simulator?

Can I make my own Saiki K Simulator?

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