(All characters in this work are adults. Due to changes in the world setting, high school begins at the age of eighteen. Brain storage complete. Retrieve with ticket.)
...
My name is Nohara Shin Chan, and I am an ordinary, unremarkable high school student.
I like watching Action Kamen, eating chocolate biscuits, and drinking 100% pure fruit juice.
My least favorite foods are green peppers, carrots, broccoli, onions, and anything remotely healthy.
Currently, I have three close friends: Toru Kazama, A-Dai, and Nobita Nobi.
Shin Chan also has a long-hidden secret—he possesses memories from other worlds.
When he was still an infant, fragments of past-life memories would occasionally surface in his mind. As his brain gradually developed, those memories slowly merged and became clearer.
Only then did he realize that he had been reborn into the anime Crayon Shin-chan, becoming none other than Nohara Shin Chan himself.
He wasn't sure whether this counted as true reincarnation or merely inheriting fragments of memories from other worlds.
Because of this, his name from his previous life had become blurry, completely impossible to recall—and entirely unimportant.
After all, in this world, he was destined to remain a carefree five-year-old child forever, doing nothing more than enjoying a happy childhood.
After accepting this premise, Shin Chan began living his cheerful life. At first, this worry-free existence was genuinely comfortable.
But as day after day passed, that endless childhood slowly began to disgust Shin Chan. His mind was nearly identical to that of an adult, yet he was trapped in the body of a child.
Then, one day, a mechanical voice suddenly echoed inside his mind, shattering the tranquility of his life.
"Error!"
"Error!"
"Error!"
"System self-check in progress…"
"Self-check complete. Scanning current world…"
"Time-space error detected. Timeline disorder. Time loop confirmed. Multiple parallel timelines exist…"
"Processing… Erasing and merging parallel universes…"
"Time-space error repaired."
"Character panel loading…"
"Character panel successfully loaded. Have fun!"
After that, the electronic voice vanished completely. No matter how Shin Chan called out, there was no response.
From that day on, Shin Chan was shocked to discover that the once-stagnant flow of time had begun to move again.
He was growing up.
He was no longer a perpetually five-year-old child.
This realization made Shin Chan extremely excited. His childhood had been fun, sure—but honestly, he didn't even know how many years he'd been stuck at the age of five. He'd been bored of it for a long time.
If he hadn't retained memories of his past life, perhaps he really would have remained a carefree child forever.
But with memories—and an almost adult mindset—he always carried worries and a deep longing to grow up quickly.
The system had repaired the worldview of this reality, transforming it from a children's anime into something closer to a real world.
However, after all these years, the system had only ever given him a character panel.
The quest log remained perpetually empty. No quests had ever appeared.
"Shin, have you really made up your mind?"
Misae Nohara looked at Shin Chan in front of her, her expression filled with concern. She truly couldn't understand what this child was thinking.
Wasn't staying in Kasukabe perfectly fine? Why did he insist on going to Soubu High School?
"Soubu High School merged with Shuchiin Academy, and I heard Toyosaki High School also joined them. Are you really going to be okay?"
The Nohara family's finances weren't bad, but they weren't great either—solidly middle class, with eleven more years left on their mortgage.
Students at Soubu High School were all academic elites, boasting astonishing grades and incredibly high deviation scores.
As for Shuchiin Academy, it went without saying. Most of its students came from prestigious families, while the rest were monstrous geniuses with absurd academic abilities.
Shin Chan had been specially admitted to Soubu High School as a sports scholarship student, after displaying astonishing talent in football, baseball, boxing, and swimming.
It was precisely this overwhelming athletic ability that caught Soubu High School's attention.
"Well, well~"
Shin Chan waved his hand casually.
"Mom, don't worry. I'm already a mature adult, you know. I can definitely take care of myself."
"Besides, Toru and A-Dai are both going to Soubu High School too. Of course I have to go!"
Toru Kazama getting into Soubu High School wasn't surprising. As for A-Dai, even though he didn't talk much, he was actually a hidden genius with excellent grades.
Shin Chan's other close friend, Nobita Nobi, didn't make it into Soubu High School and instead attended a regular high school.
When Shin Chan first met him, he'd hoped to borrow some magical gadgets from Doraemon to play with—ideally something that could help him go on a date with a hot older sister.
Unfortunately, Nobita didn't have a robot named Doraemon by his side. Stranger still, his personality was different from the Nobita Shin Chan remembered from his past life.
This world's Nobita didn't have as many flaws. His grades were average, he was responsible, kind, and upright, and he shared a very close bond with his childhood friend Shizuka Minamoto.
All in all, he was just a happy, ordinary guy.
Misae nodded. Knowing that both Toru and A-Dai were attending Soubu High School, she and Hiroshi Nohara had discussed it carefully before agreeing. They had even rented a house for Shin Chan near the school.
That also meant Shin Chan would be leaving home to live independently. How could Misae not worry?
Ever since he was little, Shin Chan had been a worrying child. Even now, on the verge of entering high school, he was still unpredictable and erratic. Integrating into other students' circles would probably be difficult for him.
"Alright, wife, just trust Shin."
Hiroshi Nohara, standing nearby, looked completely relaxed. He had finally shed his eternal section chief status and become a department manager. Paying Shin Chan's rent and living expenses was no problem at all.
"Shin has to grow up eventually. Even if we let him stay in Kasukabe, he'll still have to leave for university one day."
"We've already rented the place anyway. It's too late to worry now."
Hiroshi had been voted the most desirable husband for ten consecutive years and repeatedly chosen as the best father. Though he appeared ordinary, he was full of virtues.
He had complete confidence in his son.
"Are you worried Shin might get bullied?"
"Not that…"
Misae shook her head as she looked at Shin Chan. Being bullied was impossible. At worst, he'd just end up as a loner.
The current Shin Chan was no longer a little potato brat. Inheriting Hiroshi's height, he now stood at 178 cm, having consistently exercised over the years.
Given that average heights in Japan were generally lower, he already towered over most of his peers.
Aside from his sly, nonsensical, and erratic personality, Shin Chan looked like a sporty, sunny handsome guy. The only possible flaw was his overly thick eyebrows.
His hair inherited the Nohara family's natural curls, giving him a stylish look without any effort.
If he dressed a bit more properly—and if his personality were slightly more straightforward—he'd probably be extremely popular with girls.
...
Author's Note
Hello, readers! Welcome to my second Webnovel account.
My first Webnovel account is Shadow_demon_007, where I uploaded 20 fanfics. Due to Webnovel's upload limits and rules, I created this second account so I can continue uploading more fanfics for you all.
Please also check out my first account, where many of those 20 fanfics are available. Some of them are already fully completed, and I have uploaded those completed fanfics on my Patreon
👉 patreon.comShadow_demon_007
On Patreon, you can find
Fully completed fanfics
One free fanfic available for readers
Another free fanfic coming in a few days
I sincerely hope you enjoy my works, and I truly appreciate all your support.
Thank you for reading and supporting me!
— Shadow_demon_007