""Oh, no!"

　The students finished their homework within 20 minutes of starting the study session.
　In the end, I can't help but feel that there wasn't much point in me teaching them, but seeing their faces filled with a sense of accomplishment, I can't help but feel my cheeks naturally loosen up when I see their faces.

　As I was thinking that, Amana turned her face towards me........

''Thank you, Onii-san!

　She bowed her head cutely and thanked him.

'"Thank you!

　Following them, Hasumichi-chan, Kana-chan and Tomoyuri-chan came to thank me as well.
　This scene of the four elementary school girls bowing to me all together.....

　This is the kind of thing that is blamed on me to make things happen, no matter how you look at it.

"I'm just here for work, it's not that big of a deal.
But my mom told me to say 'thank you' when I was saved.

　Wow, what a well educated word........Amana's mother is definitely a good mother.
　Our mother is at the level of wondering why our dad got married, and it's just a shame that she says and does things like that....
　I'm glad both of my siblings don't look like her in terms of personality.

　Well, I've gone off on a strange tangent....

Oh, if that's how it is, you're welcome.
You want me to do your work?
'Yeah, I finished earlier than I thought I would, so there's still time.'
Well, I've got a question for you, my dear.
What do you want to ask me, Hasumi-chan?

　When I asked Hasumi-chan, who raised her right hand and came up with the topic, she shook her head and then opened her mouth.

I want to see what kind of person you are, Onii-san's Imoto!
Heh?　You mean my sister?
I've been curious to hear what you said about Imoto when you were looking at the videos.

　The fact that you're curious about someone else's sister is just the curiosity of an elementary schooler.......
　Well, she goes to a high school that she can commute to from her parents' house, so it's not like I'll have the opportunity to see her, so it should be fine.

　I came up with this idea, so I took out my phone and showed them the photos I took on New Year's Day when I returned home.

See, this black-haired girl over here is my sister. She just started high school this year.
""Oh!"

　All four of them had a twinkle in their eyes when they saw my sister.
　Maybe it's a natural reaction from the elementary school kids, since high school students look like adults too.

　My guess is that the four of them will grow up to be quite cute when they become high school students.
　I don't know if they will continue to interact like this until then, but if these kids are the same age as their sister, I'd like to do something to celebrate.

'Hey, Onee-san, that's pretty!
Right?　You look like my mom, but your personality is very different, you know?

　Amana's honest impressions are also very cute.
　I myself think that she is a beautiful girl, even if I don't look at her in a favorable light.
　When I was little, I used to stick close behind me.....

　When I was thinking back, Kana-chan saw her sister in the picture.....

"Wow, your diaper is so big...
I...

　I heard him spill that to me, and I couldn't help but blurt it out.

'Huh?　Wow, that's really big!　It's more than my Kachan!
My lady's in high school, but she's not even...
Wow, it's true!

　Starting with Kana-chan's words, the other three also took a bite out of it.
　And the ruthless facts that were revealed one after another made me ponder how I should answer them.

　I had a pretty good idea of what they were going to ask me afterwards.

You know what? Can I ask you just one question?
What's that?　Kana-chan?

　Kana-chan, who looked so nervous and had a red face, asked me something that looked disturbing, and I urged her to continue with a sense of dread that I didn't want to hear more.

　After receiving permission, Kana-chan clenched her skirt and locked eyes with me, and then....



How do I make my boobs bigger like this onee-chan?
No, how would I know?
Huh?

　I forgot that the other person was in elementary school and loudly tsked at the content of the question, which did not betray my expectations.
　But Kana-chan, who was surprised by the exclamation, began to get clearly frightened with tears in her eyes.

"Oh, no, I just got startled and...

　I quickly came to my senses and tried to quiet Kana-chan in a hurry.
　My fears that if she continues to cry loudly, this time the neighbors will be notified, will come true!
　The moment I thought that and stood up....　

I won't forgive anyone who trashes Kanachi, even grown-ups!
"Oh...

　With a valiant shout, a straight right was driven into my pigeontail.
　I ended up squatting down with my stomach in my hands, shamefully holding it in my hands as Hasumi unleashed a brilliant blow.

　

　However, the brilliance of her technique was clearly beyond that of an elementary school student.
　So, even if his strength is weak, if he strikes precisely on the vital point, it's easy to bring him down, even if he's an adult like I am now.

　School kids these days are amazing.....

Hasumi-chan!　Kana was just surprised, so it's not bad for her, right, Onii-chan?
Oh, I'm sorry I did that to you...
Shit!　You can't have blunt force!
Hello, Mister. Are you okay?
'Oh ... oh. I'm sorry I'm so weak for an adult...?

　With Kana-chan's persuasion, Hasumi quickly apologized.
　Maybe this is a right fist that could get me a gold medal in the Olympics.

　At that time, I'll probably remember being pigeon-tailed like this and hold my stomach.......

　As I was thinking about how stupid it was, Amana, who was rubbing my back, put her palm on my hand that was holding my stomach.

　Maybe it's because she's an elementary school student, but the fact that her body temperature is higher than mine can be felt on the back of her hand.

"Amaa...
I want to stay....

　Just as I was about to say what, Amana-chan started rubbing her hands in a circular motion, I thought....

''Tondeke~''

　I let go of my right hand that I was rubbing with a big smile on my face with a nipple.
　I had been watching the series of actions in a stupor, and then Amana squatted down and aligned her eyes with mine.

Onii-san, do you miss it?

　It's crazy not to get this kind of full recovery.
　

''........Thank you, Amana-chan.
Heh, heh, you're welcome!

　Afterwards, completely oblivious to the pain in my stomach, I left the girls and went to work as hard as I could, remembering the warmth of Amana's hands.