Late August.

The long summer vacation has finally reached its last day.

Speaking of the last day of the summer vacation, I guess it's usual to be chased by homework.

But! For the second time in my life, there's no way I can be so unplanned.

After all, I'm a man who's determined to live a solid life for the second time.

Naturally, I finished all my homework in the middle of summer vacation.

It's laughable to think that an unplanned man who can't even do his homework systematically can start his life over.

Life is not so sweet that you can start over without a plan.

This is coming from a man who has fallen for the first time in his life.

I do have a plan in my head for the future, so you can count on me.

And well, I have no problem with my summer homework.

But that doesn't seem to be the case with her.

"Mom! I can't finish my homework, please help me!"

It was my sister who came crying to my mother, who was watching a drama every day while picking up rice crackers after finishing her chores, with her blank summer vacation homework.

It was my sister.

"What, you haven't finished it yet?"

My mother looked at my impatient sister with disgusted eyes.

"I couldn't do it because I had to go to the dojo and play with my friends and stuff."

"How can that be an excuse? Don't be silly, do it yourself."

Mom's statement was perfectly reasonable.

Even if you have a dojo or an appointment, you should have had plenty of time to do your homework.

She deserved what she got for her negligence. There was no room for sympathy.

"Oh, please..."

"Don't be so picky! You should learn a little from Sho."

"What? Why do I have to learn from my foolish brother?"

My sister snickered as if my mom was joking.

My mom and dad know about the drastic changes I went through during the summer vacation, but not my sister.

In her mind, my image is still that of a stupid elementary school student who hates sports and studying.

Huh, you can only mock me so much now, you idiot!

"Unlike you, that foolish brother has completed all his homework."

"What? No way!"

The shocking revelation from my mom made her look at me, who was leisurely drinking a melon soda at the dining table.

And in my hand, I had my summer homework with all the problems filled in.

I knew that my sister, whose only talent was violence, would never have finished her homework.

That's it! I even brought my pre-finished summer vacation homework to the dining table to show my superiority in the stage of study where I can never be defeated by that violence.

This was all to take a swing at that nasty sister of mine!

(Note: My sister and I are not on the best of terms.)

"Huh~? Maybe you haven't finished your summer vacation homework?"

I deliberately took a provocative attitude to make my sister angry.

As expected, her forehead was covered with blood vessels.

"Even this foolish little brother has finished his homework, but you, my excellent and brilliant sister, haven't?"

"What? Wait, let me see!"

Turning red with anger, but somehow not violent, my sister forcefully snatched my homework and flipped through the pages.

I moved my eyes at the same speed as she was rolling up the pages to make sure I was doing my homework.

"Ugh, lies... It's really done..."

Of course.

I did all my homework in just two days during the middle of summer vacation.

I'm sure I didn't fake it, and I'm sure I got all the questions right.

I've been alive for 28 years, and my brain is not the same as my third-grade sister's.

"Well, our brains are different, you know?"

"What!?... You're getting carried away enough to finish your homework, you idiot! Don't think your homework is the same as my homework!"

My sister, in a rage, thrusts out her own summer homework and tries to kick my stunt to the curb.

Well, I can understand her point of view.

There is a considerable difference between the homework of a first grader and a third grader.

After all, they are two years apart. As the years go by, it is natural that the level of classes and problems will improve.

The difference of two years is not small.

A two-year difference in the age of elementary school is not the same as a two-year difference in the age of high school students or adults.

There is a big difference between taking a class for two years and not taking a class at all.

――But from my point of view, that's a very small difference.

"Hmm, lend it to me."

I quickly pull out the homework from my sister's hand with a ridiculously superior look.

I opened a random page, looked through the questions, and picked up the pen I had brought with me.

I see, it's a multiplication problem.

Surely a normal first grader wouldn't be able to solve it.

If it's a normal problem.

I run the pen through it smoothly.

Hahaha! I can solve it! I can solve it!

Like a certain colonel, I alternately calculate and write down the answer, and in less than a minute, I finish solving the problem on a single page spread.

"Fufufu~, no problem."

Then I show the finished page to my sister.

When she saw it, her sister rolled her eyes, rubbed her eyes once, looked again, looked away once to the side, and then looked again.

"What? It solved...!"

Hmmm... Apparently, my sister thinks the difference between me and her is two years, but she's wrong.

In fact, 20 years apart! Of course, it's a 20 year difference with me being the older one!

Hahaha! There's nothing funnier than that! After all, I've just given my sister a good beating!

At last, I've dealt a blow to that savage sister who is the personification of violence!

"Hey, hey, hey~ It's a different grade's homework, but I could solve it too! Was I right, or was my brain not as good as I thought?"

My sister's face looked like it was on the verge of exploding.

She looked like she was about to explode and attack me.

It would be a good idea to pull back now.

If I run away now, I will win and escape.

My sister has been violent with me and I have never been able to win a single match.

But if I make a strategic retreat now, I will win.

But I'm not going to let that happen...!

What I want is not a victory by escape. It's a victory so overwhelming that no one will complain.

I'm not going to be able to do that if I don't beat my sister to death!

"Hey, tell me something, sister. If you don't mind, I can help you, can I? Of course, I wish I had bowed my head properly. Hahahaha――ha."

As I was laughing so hard, I noticed that my vision was showing the ceiling of my house instead of my sister who was red-faced with regret.

There was no way that the ceiling and my sister had suddenly switched places.

If anything, it was me who had switched positions.

Yes, the reason why this happened is quite simple.

Because I was getting carried away, my sister finally exploded, and I was caught in the explosion, and my sister gave me an arm wrists cross lock.

As a result.

"It hurt-hurt-hurt! Oh, it's going to snap, snap, snap!"

The pain caused me to slump to the ground.

"Fuck you, little brother! You're gonna die with a broken arm!"

"People don't die from broken arms."

The arm's wrist cross-lock is like a vise due to my sister's anger, and it tightens my arm more and more.

My arm is making a noise that I've never heard before.

It's not good! If I don't do something, I'm really going to break!

But this is a chance of a lifetime!

If I give up now, my victory over will be lost!

I don't want to admit that I lost to such unconvincing violence, even though I had the upper hand earlier...

If I could humiliate her, I would give an arm or two.

"Give, give, give! I'm so sorry! I'm so sorry!"

I knew it was a shame to sacrifice my arm.

I have a goal to live my second life steadily. I can't afford to get seriously injured in this stupid fight with my sister.

If I were to go to school tomorrow with a broken arm, I would attract a lot of attention.

It was a perfectly rational decision to give up.

But... I wanted to win.

Maybe I'll learn some martial arts next time...