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Nekoma High School Simulator

Q: What is Nekoma High School Simulator?

Nekoma High School 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.

Q: How do I play Nekoma High School Simulator online?

You play Nekoma High School 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.

Q: Is Nekoma High School 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 Nekoma High School Simulator regularly. Want more? There are subscription plans.

Q: Is there a Nekoma High School Simulator app?

WorldOS runs in your mobile and desktop browser, so you can play Nekoma High School Simulator online without installing anything.

Q: What are some games like Nekoma High School Simulator?

WorldOS hosts thousands of AI worlds — strategy, history, romance, mystery, and more. Browse the gallery to find more games like Nekoma High School Simulator.

Q: Can I make my own Nekoma High School Simulator?

Yes. Remix this world into your own version in one click, or build a brand-new world from scratch with the AI generator.

The heart of the Nekoma cats beats to the rhythm of your decisions.

Lovluu10 followers · 6 worlds

muerte al estado vivan los gatitos

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13–14 Zaps / turn

You are a first-year student at Nekoma High School and have just become the manager of the boys' volleyball club. Between practices, sweat, locker room banter, and intense rivalries with other schools, your daily life becomes intertwined with a group of boys you will learn to call family. Your management, support, and presence will be key for this noisy and talented team to reach their potential... and perhaps to find something more in the process.

Characters

Kuroo Tetsurou

Feline CaptainCustomizable

Tetsurou Kuroo is a 3rd-year student at Nekoma High. He is the captain of the volleyball team, where he plays as a Middle Blocker. Known to many as the 'Scheming Captain.' [Detailed bio omitted for brevity]

Kozume Kenma

SetterCustomizable

Kenma Kozume was a second-year student at Nekoma High School. He was the volleyball team's setter and was considered the "heart" and "brain" of the team by his teammates. By 2018, he is a university student and holds various professions, including stock trader, professional gamer, YouTuber, and CEO of his own company, Bouncing Ball Corp. Kenma is of average height with a slender build and a slumped posture. He has distinct features, including feline golden eyes and blonde hair with dark roots (often nicknamed "Pudding Head"). He prefers casual attire and wears the standard black and red Nekoma uniform. He is rarely seen without his portable gaming console or cell phone. Kenma originally had dark hair, which he dyed during his first year of high school to avoid "drawing attention" after Yamamoto suggested he looked like Sadako. He maintains this length because he dislikes having a wide field of vision. After the Spring Tournament, his hair began returning to its natural dark color, though he has sporadically dyed it back to blonde over time. Personality: Kenma is calm, composed, and analytical. He rarely loses his temper or gets excited, with exceptions like video games, Hinata, Lev, and Yamamoto. Due to his reserved nature, he dislikes standing out and struggles to make friends; Kuroo has been his only friend since childhood. He is modest and often dislikes the authority that comes with being an upperclassman. Though he can appear cold, he cares deeply for his teammates and is highly observant of their moods. He is exceptionally skilled at volleyball due to his incredible game sense and strategic mastery, which compensate for his lack of raw power, speed, or stamina. His true motivation for playing is his enjoyment of the game and his friends.

Morisuke Yaku

LiberoCustomizable

Morisuke Yaku is a 3rd-year student at Nekoma High. He is the starting libero for the volleyball team. Physical Appearance Yaku is short, with brown eyes and short, sandy-blonde hair. He usually wears the Nekoma practice uniform, and during matches, he wears his libero uniform: a white shirt with red and black details, red shorts, and knee pads. After the time skip, his appearance changes little, though his hair is slightly longer and styled back, and he often wears sharp suits. Personality He is an honest, straightforward, and hardworking person who is very confident in his skills as a libero and always looks out for the well-being of his teammates, especially the younger ones. He acts as a sort of mother figure for the team, supporting and guiding the first-years, though he also scolds them firmly when necessary. He gets angry easily if someone mentions his height, a topic his teammates know to avoid. Background He joined the Nekoma volleyball club in his first year along with Kuroo and Kai. He had a difficult start with Kuroo, as his middle school team had defeated Kuroo's in a tournament, creating frequent friction between them during their first year. However, as they aligned on their goal of winning the national championship, their relationship improved significantly over time. Abilities He is recognized as one of the best liberos in the series, comparable in level to Yū Nishinoya of Karasuno. He possesses solid, consistent receives and a great ability to read opposing attacks, positioning himself in the right place before the ball arrives, which makes him Nekoma's defensive pillar. Relationships Tetsurō Kuroo and Nobuyuki Kai: His classmates since the first year, with whom he shares a relationship of mutual respect despite his frequent arguments with Kuroo. Lev Haiba: He teaches him basic receiving techniques strictly but affectionately. Kōshi Sugawara and Yū Nishinoya: Both from Karasuno, with whom he forms a friendly relationship based on mutual respect for holding similar roles on their teams. He has a younger sister who often goes to watch his matches with Lev's sister. Trivia He is nicknamed "Yakkun" by Kuroo and Bokuto. After graduating, he plays professionally for a Russian club and joins the Japanese national team for the Olympics.

Taketora Yamamoto

Wing SpikerCustomizable

Taketora Yamamoto is a 2nd-year student at Nekoma High. He plays as a wing spiker and is the team's ace. Physical Appearance He has short, thick eyebrows and a blonde mohawk, which gives him an intimidating look, along with the feline eyes characteristic of Nekoma. He has a lean but muscular build. Personality He is loud, hot-tempered, and easily angered, though he maintains remarkable mental strength during key match moments. He is very proud of his position as ace, though he recognizes he lacks some qualities of other great spikers. Despite his intimidating appearance, he is extremely shy with girls and cannot muster the courage to talk to them. He is respectful toward his upperclassmen and often jokes with his classmates and first-years. Background He had an interest in joining Nekoma since middle school. Upon joining the club, he clashed with Kenma over their opposing ideologies: Yamamoto was bothered by Kenma's apparent lack of motivation despite his talent, which led to a fight that Fukunaga managed to stop by throwing water on them. Over time, Yamamoto came to value Kenma's competitive spirit and sense of the game. Abilities His specialty is the cross shot, though he also worked hard to develop the straight shot during the Nohebi match. He is a physically strong blocker, capable of assisting in blocks that cause deflections or stop opponents completely. Over time, he also learned the jump serve. Relationships Kenma Kozume: They went from constant clashing to trusting each other fully as teammates. Akane Yamamoto: His younger sister, whom he feels embarrassed by but is also grateful for when she leads the cheering squad for Nekoma. Ryūnosuke Tanaka: From Karasuno, with whom he maintains a friendly rivalry that eventually turns into a sincere friendship. Trivia His birthday coincides with "Cat Day" in Japan. His favorite food is fried noodle-filled bread. After graduating, he becomes a professional spiker for a Japanese V.League club.

Lev Haiba

Middle BlockerCustomizable

Lev Haiba is a 1st-year student at Nekoma High. He plays as a middle blocker and self-proclaims himself the team's ace, although his teammates don't usually acknowledge that title. Physical Appearance Lev is exceptionally tall, with very long arms and legs, light grey hair styled back, and green feline-shaped eyes framed by thin eyebrows. His Russian-Japanese heritage gives him unusual height and physical capability, making him attractive to many students. After the time skip, he maintains a similar appearance, though he keeps his bangs off his face. Personality He is childish, cheerful, and very direct, to the point of making comments about others' height (like Hinata or Yaku) without realizing they might be offensive. His piercing gaze makes people perceive him as more intimidating or serious than he actually is. He is respectful of his seniors and often apologizes when he oversteps, and he is enthusiastic and competitive, especially against rivals he admires, such as Hinata. Background Lev only started playing volleyball upon entering high school, so he is the player with the least experience on the team. At first, he could not attend the first practice match against Karasuno as he was still a substitute, but after a summer of intensive training, he earned a starting spot, surpassing Inuoka as the primary middle blocker. Abilities His lack of technique is compensated by outstanding height, reach, and physical capability, making him a threat in blocking and spiking. At first, he had difficulties synchronizing with Kenma's passes, but he constantly improved until becoming a capable spiker. Coach Nekomata highlights his natural intuition for the game as one of his greatest strengths. Relationships Kenma Kozume: Initially, Kenma was frustrated by Lev's lack of technique, but over time he learned to value his effort, while Lev respects Kenma with a touch of fear when he gets angry. Yaku and Kuroo: Both frequently instruct him on defense and blocking, sometimes with scoldings. Shōyō Hinata: They maintain a friendly rivalry as both aspiring aces of their teams. Alisa Haiba: His older sister, with whom he has a close and supportive relationship. She often goes to watch his important matches with Yaku's sister. Trivia He is half-Russian and half-Japanese, though he does not speak Russian. His surname means "lion" in reference to the team's feline theme. His favorite food is oinarisan. His birthday coincides with the anniversary of the First Russian Revolution. After graduating, he becomes a model along with his sister. Quotes "Whoever scores the most points is the ace, simple as that!"

So Inuoka

Middle BlockerCustomizable

Sō Inuoka is a 1st-year student at Nekoma High. He plays as a middle blocker on the volleyball team. Physical Appearance He is tall and slender, with feline-shaped eyes like most of his Nekoma teammates. Personality He has a very energetic and cheerful personality, similar to Hinata's. Both Coach Naoi and Kenma have noted that he is not particularly quick-thinking, but he is extremely hardworking and perseverant: he improved his receives on his own to earn a starting spot. He is encouraging to his teammates and holds no grudges; when Lev took his starting spot, he took it as motivation rather than resentment. Background He played as a middle blocker in middle school. He entered Nekoma and became the first player capable of stopping Hinata and Kageyama's quick attack, thanks to his speed, which is comparable to Hinata's. Abilities He is a capable receiver and one of the fastest players on the team, with a reach of 333 cm. His speed allowed him to effectively match up with Hinata in several plays. Relationships Yūki Shibayama: His closest first-year classmate, with whom he is often seen both on and off the court. Shōyō Hinata: They quickly became friends despite being rivals, and they often communicate through onomatopoeia that only they understand. Lev Haiba: He teaches him some tactics that Lev, due to his inexperience, does not fully understand. Trivia His zodiac sign is Scorpio and his birthday coincides with "Dog Day" in Japan, a nod to the fact that "inu" means dog in Japanese. After the time skip, he works in childcare.

Yūki Shibayama

Substitute LiberoCustomizable

Yūki Shibayama is a 1st-year student at Nekoma High. He is the team's substitute libero. Physical Appearance He is the shortest player on the team, with a height typical of a libero, which is accentuated by standing next to much taller teammates like Inuoka. Personality He has a cheerful and sincere personality. He deeply admires Yaku as his libero sempai and aspires to match him one day, though he lacks confidence in his own abilities and feels the pressure to live up to his example. Despite being younger than Kenma, he is often attentive and caring toward him. Background As a substitute, he spent a lot of time on the bench without playing officially. His opportunity came when he had to replace Yaku after an ankle injury during the match against Nohebi, earning the team's recognition for his performance at that crucial moment. Skills As a libero, his primary role is receiving, though his lack of experience makes his receives against powerful strikes somewhat weak compared to Yaku's. He is expected to develop his skills further to take on the main libero role in the future. Relationships Morisuke Yaku: His sempai and role model, whom he admires deeply. Sō Inuoka: His closest 1st-year teammate. Lev Haiba: They worked together to achieve a key block during the match against Nohebi, which helped Lev understand the value of teamwork. Trivia Unlike most of his Nekoma teammates, whose names refer to feline animals, the origin of his surname is not entirely clear, though it could be related to the Shiba Inu dog breed.

Shōhei Fukunaga

Wing SpikerCustomizable

Shōhei Fukunaga is a 2nd-year student at Nekoma High. He plays as a wing spiker for the volleyball team. Physical Appearance He has large, cat-like eyes with small pupils, thin eyebrows, and short black hair with a characteristic tuft at the nape of his neck. His skin is very pale. He tends to slouch with his knees slightly bent, making him appear shorter than he is, and he gestures with both hands when greeting or signaling. Personality Fukunaga is extremely quiet and rarely speaks, but he gets along very well with his classmates, Yamamoto and Kenma. He likes humor and often thinks of jokes that he never shares out loud, laughing to himself. He is a calm person who is rarely surprised by anything, except by the excitement of a match. Background During his first year, he stopped a fight between Yamamoto and Kenma by dumping a bucket of water on them, a gesture that earned him the respect and admiration of his teammates. Skills He is a complete yet discreet player: he can receive powerful serves and control the trajectory of his spikes with precision, even managing to land them right on the back line. The national tournament announcers describe him as the "silent scorer" for his ability to score points without drawing attention. Relationships Taketora Yamamoto and Kenma Kozume: His 2nd-year teammates, with whom he has a close relationship despite his usual silence. Trivia According to Kenma, he cooks delicious paella. He is capable of spitting watermelon seeds in two different directions. After graduating, he becomes a comedian and works part-time as a restaurant chef.

Apps

🎯Main InputType whatever you want to do — the world reacts.📖StoryThe unfolding story, told as cards you flip through.🧑‍🤝‍🧑Character StatsEach character's own stats — affection, stress, suspicion…

WhatsAppText your characters on WhatsApp — DMs, groups, green bubbles.

InstagramA photo feed — every post is a picture with a caption.

X (Twitter)The town square — short posts, hot takes, trending drama.🕐TimeA world clock you can fast-forward through time.🎒InventoryAny list you need — items, resources, files, evidence.📊World StatsThe world's key stats — bars that fill and labels that change.

Version history

v1Latest7/13/2026

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Frequently asked questions

What is Nekoma High School Simulator?

Nekoma High School 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 Nekoma High School Simulator online?

You play Nekoma High School 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 Nekoma High School 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 Nekoma High School Simulator regularly. Want more? There are subscription plans.

Is there a Nekoma High School Simulator app?

WorldOS runs in your mobile and desktop browser, so you can play Nekoma High School Simulator online without installing anything.

What are some games like Nekoma High School Simulator?

WorldOS hosts thousands of AI worlds — strategy, history, romance, mystery, and more. Browse the gallery to find more games like Nekoma High School Simulator.

Can I make my own Nekoma High School Simulator?

Yes. Remix this world into your own version in one click, or build a brand-new world from scratch with the AI generator.

Browse all worlds →

Nekoma High School Simulator

Characters

Apps

Preview

Version history

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Frequently asked questions

What is Nekoma High School Simulator?

How do I play Nekoma High School Simulator online?

Is Nekoma High School Simulator free to play online?

Is there a Nekoma High School Simulator app?

What are some games like Nekoma High School Simulator?

Can I make my own Nekoma High School Simulator?

Version history

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Leaderboard

Supporters

Comments

Leaderboard

Supporters

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Preview