“Tsuna, do you know what you need to improve the most now?”
“Is it improving my grades?”
“A dumbass like you definitely need that part, but that’s not your major issue.
You need to focus on what you really lack right now.”
“But I have a lot of issues!
I don’t even know where to begin with…”
“It’s good you have self-awareness.
Even my game with women is better than you could ever hope to reach.”
Reborn smirked smugly, making Tsuna clenched his teeth.
“You’re a baby!
No girls dislike babies!
You literally make them feel maternal instincts.”
“Game is game.
Don’t worry, Tsuna.
As your tutor, I’ll teach you my game someday.”
“Don’t act cool.”
Tsuna felt sour.
Unfortunately, he couldn’t help but grumble quietly.
“…you better be!”
Reborn merely smiled and continued his lesson.
“In the Art of War, if you know yourself and your enemy, then you will never lose a hundred battles.
In our field, the information of our own abilities and our enemies is the most reliable weapon that keeps us a foot away from death.
Understanding your own weakness is already a good step.”
“So your point is…?”
“Keep it up—your weaknesses will be your drive to change but I will be the one to help you find the best way to utilize that drive.
I know you more than you understand yourself at this point.”
“Thank you…?”
“That’s why I know each and every pathetic characteristic you have—even the ones you need to focus on improving first which are your confidence and discipline.”
“Is that related to why we’re standing right now before this place?”
Tsuna observed the large modern building before them.
| Body Improvement Club |
“That’s right.
This is the place where we’ll begin your most important lesson—Healthy Body Equals Healthy Mind Lesson!
This is the lesson that will ensure a healthy future for you.”
Reborn smiled proudly at the lesson he was about to teach.
“What a weird name…”
Tsuna chuckled but went silent when Reborn smacked him.
Looking through the glass window, Tsuna saw inside the building, there were various gym equipment and adults working out intensely.
Everything appeared normal….
But why are all the adults inside wearing school gym uniforms!?
Tsuna was flabbergasted and even wondered if he was imagining things.
Is this some kind of new fetish adults have…?
“‘Reborn, what’s this place?”
Tsuna asked quite nervously.
Reborn showed a flyer for him to read instead of explaining.
| 🔥 BODY IMPROVEMENT CLUB 🔥
Live in the Present!
Become the Best Version of YOU!
Join a community built on hard work, discipline, and mutual support.
No matter your starting point, background, or natural abilities—you can improve, grow, and transform.
✔ Cheap Monthly Membership
✔ Open to All Ages, Genders, and Nationalities
✔ Supportive, Motivating, and Beginner-Friendly
📍 Location: Body Improvement Club at Namimori Main District
Become stronger.
Become confident.
Become YOU!
Join the Body Improvement Club today!
|
“This is…!”
Tsuna could vividly feel the scream of pure testosterone and sweat radiating from the flyer.
“Healthy Body Equals Healthy Mind Lesson means learning to build a discipline of hard work through exercising daily.
Although you still don’t plan to accept being a mafia boss, I have the responsibility as your home tutor to make you into a healthy member of society.
Right now, you’re not much different from a scrawny shrimp that wouldn’t even get picked in the market, making you lack the confidence and discipline to excel in either sports or academics.”
“Why am I being compared to a shrimp in a market…!?”
Tsuna was starting to feel amazed by Reborn’s ingenuity to roast him in various different ways.
“This gym has everything needed for this lesson to succeed.
It has every proper equipment alongside a healthy community full of people who’ll encourage and support you until you develop your confidence and discipline.”
Reborn could train Tsuna by himself but it wouldn’t do anything to his current personality.
“Or don’t tell me you’re satisfied with your current pathetic self?
Didn’t you want to change?”
Tsuna nodded as he remembered how helpless and weak he was when Mutsumi was kidnapped.
To become worthy for her….
“I’ll change myself!”
Tsuna steeled his resolve.
If Reborn had to guess the origin of that resolve…
It’s for that girl.
Reborn smiled.
Dream big, kid.
“Hello!
Excuse me, I’m here to join the Body Building Club.”
Tsuna walked to the reception desk and showed the flyer from Reborn.
A tall and muscular man greeted him with great curiosity.
“Welcome to the Body Improvement Club, Kid!
I’m Musashi Goda, the owner of this gym club.”
He warmly welcomed Tsuna, making the young boy feel he was comfortable to talk with.
“Thank you, Sir.
I’m Tsunayoshi Sawada.”
Goda observed Tsuna.
“How old are you, kid?
You look quite young.”
“I’m 15 years old.”
Goda wore an astonished expression before smiling.
“Welcome, little guy!
I was at your age when I started going to the gym!
Haha, how nostalgic!”
Then Goda finally noticed Reborn beside Tsuna, his eyes widening in shock.
“Y-You are…!”
Tsuna was confused by his reaction, so he also looked at Reborn.
“..!”
Tsuna dropped his jaw, completely looking stunned.
Before he could realize, Reborn was now wearing a muscle costume covered in glistening brown oil, flexing like a body builder on steroids.
A disguise!?
Tsuna could clearly see Reborn’s muscular build was just a synthetic costume.
“No way!
You’re Jimmy Armstrong!
The Former Muscle Olympia Champion!”
Goda exclaimed excitedly.
“Ciao.”
Reborn greeted while flexing his wide, muscular back at them.
Hearing Goda’s words, other gym members approached them in a frenzy.
“No way!
I can’t believe it!”
“It’s really Jimmy Armstrong!
The man behind the infamous 67 Pose!”
“Please give us your autograph!”
The gym members began to introduce themselves as friends of Goda.
All of them had one single characteristic—they were muscular and tall.
Jimmy what!?
Tsuna was dumbfounded by the sudden turn of events.
How could Reborn who looked like a baby win a bodybuilding contest…?
Can’t you guys see that his muscles looked even more fake than those who did steroids!?
“Master Armstrong, why did you come to our humble gym?”
Goda asked curiously and became more professional.
“To let my student get his membership here.”
“You have a student!?”
All of the gym members shifted their shocked gaze to Tsuna.
“Could he be the inheritor of the legendary 67 Pose….?”
Tsuna didn’t know whether to laugh or cry.
What the heck is the legendary 67 Pose!?
But they soon wondered if Tsuna was Armstrong’s student, why was he so thin and weak?
Reborn explained.
“Tsuna just recently became my student.
He wants to make himself better, so I hope you guys can help him.”
“Ah, so a new gym bro!”
“You can trust him with us, Mister Armstrong!”
“We’ll make sure our new little brother’s wish comes true.”
Goda and his friends responded brightly and determinedly.
“Tsuna, so why did you want to make yourself better?”
Goda asked.
“You can be honest, we promise we will not judge you.”
Seeing their warm gaze and pure smiles, Tsuna somehow felt it wasn’t too difficult or embarrassing to share.
“I want to be better because I’m tired of being helpless and pathetic…!
I also want to become a worthy man someday to the girl I like!”
With a flushed expression, Tsuna blurted out his resolve.
Goda tapped his shoulder and nodded approvingly.
“You have a good reason.
All of us here have also experienced the same thing at some periods of our life.
Changing yourself for someone you love is admirable and joyful, so don’t hesitate to ask for advice from us!”
The other gym members nodded at Goda’s remark.
“Trust in your new brothers!
We’ll help you become the best version of yourself!”
Its been a while since Tsuna felt warm and touched by the words of other people aside from his mom and Mutsumi.
He thought they were gonna make fun of him, but got encouraged instead, so he kinda felt like crying.
“I’ll work hard, Big Bros!”
He made a fist.
“You remind me of one of our members back then…”
Goda couldn’t help but feel nostalgic.
“…?”
Tsuna tilted his head.
Reborn smiled seeing the start of his lesson went beyond his expectations.
“By the way, big bros, why are you all wearing a school gym uniform?”
In fact, Tsuna has been dying to ask this question.
Even Reborn leaned in curiously.
Goda and the others flashed them a brilliant smile while posing strikingly in a group.
“Youth!
We may be adults now, but when we wear this uniform, it feels like we go back in time to our energetic youthful selves when the Body Improvement Club was just a club in our old middle school!”
Tsuna was quite weirded out, but he was impressed to hear this place has such an old history.
That day, Tsuna became a member of the Body Improvement Club.
And he was also forced to wear his school gym uniform while working out.
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Today was a peaceful morning.
During class, Tsuna couldn’t help but fall asleep while still sitting upright.
Then abruptly, the ceiling panel above him opened, Reborn peaking out as Leon transformed into a green pipe aimed toward Tsuna.
Whooshh…!
With a faint rushing sound, the asleep Tsuna sensed an incoming danger but was too late to react.
A bean painfully struck his forehead, carrying enough force to make him stumble from his seat.
Hearing his sudden commotion, the teacher and his classmates looked in his direction.
“Sawada, stop dozing off!”
The history teacher was angry to see Tsuna falling asleep during her time.
Yes, her time was famed for being extremely boring, but no one still dared to sleep because of her stern personality.
“See me at the teacher’s office later!”
With her reprimanding, Tsuna’s classmates began to laugh quietly.
All of that caused Tsuna to become fully alert and awake.
He looked up and saw Reborn within the ceiling panel, smiling nonchalantly at him.
“Always stay alert.
You won’t know when your enemies will strike.
Though, I just want to make you listen to class attentively.”
Of course, Tsuna realized his fault and didn’t blame Reborn.
“I’m sorry, Sensei!”
Tsuna slapped his cheeks to fully wake himself up.
Focus, Tsuna!
Mutsumi curiously glanced at Tsuna, wondering why he was so sleep-deprived today.
It was unusual since recently she noticed Tsuna starting to listen carefully to each class session.
After history class, it was lunch time.
“Oh no, I forgot my lunch box!”
Tsuna agonized at the thought of not being able to fill his stomach.
As part of the Body Improvement Club, skipping meals was forbidden, a way to destroy the progress of your exercise.
With his shoulders slouched, Tsuna despaired with a sigh.
The lack of sleep was really affecting his focus.
Why was he lacking sleep?
Sure, his late-night study session coupled with his recent exercise routine with Reborn exhausted him physically and mentally.
But that wasn’t at all.
The final exams are near…!
He was burning his eyebrows every night to study under Reborn.
Tsuna was taught that proper sleep was optimal to achieve the best recovery and growth after exercising… but he couldn’t help during exam week.
He skipped classes in the past and wasn’t that smart in academics, so he had to study hard just to catch up with others.
Should I just buy from the cafeteria or find Reborn to tell him I forgot my lunch…?
“Want some of my lunch?”
Immersed in his thoughts, Tsuna was suddenly startled by Mutsumi’s voice.
He looked at her and saw her handing a lunch box.
“…are you sure?”
Tsuna was touched by the offer, but was also too embarrassed to accept.
“Yup, I made too much this morning.
You can have some.”
She showed him her two-layered lunch box.
“Eh!?
You made this?”
Tsuna looked at her lunch box and gulped down with hints of eagerness.
Homemade food from Mutsumi… If this is a dream, don’t wake me up!
“Back at my home, you see, I help cook for my family.”
“Then… Thank you so much.”
Although embarrassed, Tsuna was even more afraid of starving his muscles, so he gratefully received her lunch box.
Thank you, God!
Expressing his appreciation for the food and this rare opportunity, Tsuna slowly ate and chewed carefully—trying his best to savor each and every flavor.
“This…!
It taste so good!”
Tsuna exclaimed in surprise and couldn’t help but give a sincere compliment.
“I’m glad to hear that.”
With a smile on her face, Mutsumi softly laughed as she watched Tsuna’s exaggerated way of eating.
Whenever he ate, his eyes would constantly close to appreciate the flavor before popping them open in delight, his cheeks flushing red and his lips curling in enjoyment.
After finishing his food, Tsuna turned to Mutsumi with a satisfied, grateful expression.
“That was really delicious.”
Mutsumi returned with a smug grin.
“Of course, I cooked it with all my heart and soul.”
“I-I see…!”
Tsuna was caught off guard and received a huge critical damage.
She then laughed.
“Just kidding!
But why are you so sleepy today?”
“Oh… I’ve reduced my sleep because the final exam week is approaching.”
“Wow, so you had a side like this…!
You must be aiming for a comeback from always being placed last in our class ranking.”
Mutsumi remarked half teasingly.
“You could say that…”
He laughed dryly as he set a goal for himself to have high scores for every subject to not take summer classes.
“How do you usually study?”
“I just study hard as hell every night.”
Tsuna casually said.
When he meant hard as hell, it really meant like hell.
Tsuna trembled in fear.
Studying under Reborn wasn’t normal—it was close to torture where he was being threatened with gun and bombs at every second whenever he made mistake when reciting or answering practice questions.
“Hmm…”
Mutsumi gazed at him deeply while thinking.
“Want me to help you during our free time at school?
I mean you could study as hard as you can, but if you don’t study smart, you wouldn’t go that far.”
“Really!?”
Tsuna widened his mouth.
Although he had Reborn to study with, he couldn’t let go of this chance to be with Mutsumi!
“Yes, I promised to help you as the class president, didn’t I?
Mutsumi then smiled smugly.
“Rather than study by yourself, isn’t it better to learn how to study from the school’s number one top student?”
“That does sound right… That would be a great help!”
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At the school’s library, there were two students studying together.
“I don’t get it…”
Tsuna was frustrated over the math problem he was solving.
Math was fine at first to him, but when it got complicated, that’s when he felt everything sounded bullshit.
If he could travel back in time, he would kidnap the person that made math more problematic than it already was.
Of course, this was nothing more than a young student’s bitterness.
“Let me see.”
Mutsumi turned her attention to him, patiently teaching him how to solve the problem while giving her own insights and tricks.
“Amazing!
You made it so much easier to understand!”
Tsuna was astounded on how she could explain such complicated knowledge into something more understandable.
Though, he had to admit that when it was her teaching, he practically devoted all of his attention and brain cells to listening.
It was the same with the notes she shared, often much easier to understand and remember than the textbooks.
Mutsumi smiled smugly.
“You still haven’t witnessed all of my greatness.”
Tsuna grumbled about how cocky she was growing, but he was happy to see a new side to her!
“Tsuna, have you made new friends at school?”
Mutsumi asked.
Tsuna sweated.
Other than Reborn and his gymbros, he was a loner at school.
He still found it difficult.
He lacked interesting traits, and all he ever did was frequently exercise and study.
Sometimes slacking off by reading manga and watching anime.
“None…”
Mutsumi sighed.
“I worry you’ll end up all alone in the future.”
“Wow, you sounded just like my mom.”
Tsuna was impressed, causing her to laugh.
“Alone, huh…”
Tsuna sighed and then gazed at Mutsumi’s eyes.
“Actually, when I’m with you, I don’t feel that lonely…”
He mumbled quietly, as if whispering to himself.
Mutsumi faintly widened her eyes as she looked back at Tsuna.
“Alright, let’s continue studying!
Even if not now, I’m sure you’ll create new friends when we become juniors!”
Mutsumi hastily returned to studying with Tsuna following after.
After that day, it became a routine for him to study with Mutsumi at school and then later with Reborn at night.
The difference between their teaching methods….
was like heaven and hell.
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After school, Tsuna went to the gym to complete his daily exercise routine.
“Good afternoon, Big Bros!”
“Oh, Tsuna!
How’s school?”
“It was alright.”
At the locker room, he replied while changing into his school gym uniform.
“You sound happy today.
Any progress with your crush?”
“I was curious, too.
Lately, things seem to be progressing well between you two.”
The locker room became rowdy as they loved to hear about their younger brother’s love story.
Tsuna’s cheeks flushed like a tomato, denying them by waving his hand frantically.
“Things are normal!
We just studied together!
Besides, I think she won’t want someone like me…”
Goda’s face turned serious.
“Don’t degrade yourself, Tsuna!
You’re still young and have more chances to improve!”
“He’s right.
If you keep thinking negatively, it won’t change anything.”
“Do you know how amazed we are by you?
Your desire to become better is something rare to be seen in people your age.”
“And ever since you resolved to change, you persisted despite the pain of exercising.
You are starting to change, Tsuna!
And you will keep getting better!”
Tsuna was deeply touched by their words.
As he reflected, he realized their words were right.
He remembered the reason he came here—his resolve to become a worthy man for her.
“Thank you, everyone.”
Tsuna grew more determined.
“Even if I die, I’ll work hard to become better!”
“Yes, that’s the spirit!”
All of them cheered.
“Then let’s increase our training intensity today…!”
Tsuna widened his eyes.
“No wait please!
It’s leg day!”
“Even better!”
Tsuna could only cry as they proceeded to exercise even more intensely.
Since Tsuna was young with his body still developing, he was not allowed to try heavy weights yet to avoid injuries.
Reborn made a structured training plan for him revolving around calisthenics—a body weight exercise to develop functional strength, commonly practiced by rock climbers and elite athletes to carry their own weight.
Just like what it means, this exercise uses a person’s own weight to train.
His exercises include long-distance running, pull-ups, squats, dips, push-ups, chin-ups, and other difficult physical training.
These training sessions were exercises that effectively moved all the muscles coordinately, so it was great to build overall functional physical capabilities.
For today, Tsuna focused on leg training exercises with light weights to improve not only their muscular strength and endurance, but also flexibility and stability.
When he completed every intense set, Tsuna couldn’t walk home, so he was dropped home by a senior who felt guilty for raising the training intensity.
But it was in their club’s mottos that pain equals growth!
…
Here’s the last chapter for this week 🙂