The sister who has become strong

    「Onii-chan! Onii-chan Onii-channnnn!!」

    Having recognized me, my sister Selen rushes over

    Her footsteps cause a terrible “zudododododo……” sound (rumbling)

    「Onii-chan! You have returned!!」

    「gubeshi!?」

    Her embracing has turned into a tackle

    I feel like my internal organs are about to fly out from my mouth

    「Onii-chaaaaa! I really wanted to meet youuuuu!!」

    「Gueeee……!?」

    Really, is this really my sister Selen？

    When I was 10, my 8-year-old sister was always with me

    After that, we separated for 5 years as I left for training

    My sister who I met after 5 years, how violently strong has she become?

    Her figure is still small and cute just like before I left, but she has grown compared to 5 years ago

    Right now, Selen should be 13 years old

    While she’s still as small as one should expect from knowing her age, but that strength is not something you would expect from that age

    A while ago, 2 or 3 adult men were blown away like dry leaves. I surely had seen that scene with my own eyes

    That was my sister’s doing

    「……How should I say, Selen has changed!?」

    Mainly, her strength……。

    Before I left, my sister was surely just a normal girl, but why she has become unrivaled after our reunion?

    「Onii-chan doesn’t change」

    「Eh? I did change though?」

    「Does not change, Onii does not change!」

    I have changed, really

    I zealously studied under a tanuki for 5 years just to change myself

    After the growth period, I had become taller and my face also changed

    「Onii-chan, doesn’t change」

    「…………」

    ……Fine

    If my cute sister insist that I 『does not change』 then I will abide

    It is essential, right?

    It seems essential

    「Onii-chan, you finally returned. Although I always waited for you」

    「I said I would return after 5 years, right? I had kept my promise」

    No, more importantly

    I’m more curious about my sister

    What did my sister do during that 5 years?

    All the fainted men scattering around the training ground

    That was done by my sister Selen。

    How did my cute sister do such a dangerous thing?

    If that happens in the training ground, then you don’t even need to think to realize it’s a part of combat training

    But, it’s a mystery why my sister Selen did combat training, and it’s even a bigger mystery how my sister gathered dozens of people to beat them all like that

    My comprehension already reached its limit

    「My sister……, My cute sister……!?」

    Unable to understand, my brain feels like burning

    「Selen……! What did you do within these 5 years!? What happened that Onii-chan didn’t know!?」

    「I want to hear that too. Onii-chan, what kind of training did you do at the destination of your trip?」

    No, I’m obviously more worry about Selen!

    Compared to that, what I did was trivial!

    「Eh? But explaining it was a chore!?

    「Don’t be lazy!」

    「Ah, then how about this……Onee-chan! Forte Onee-chan!!!」

    Onee-chan!?

    「Please come here! Onii-chan has returned!!」

    Hearing that voice, a single person looks back

    A woman

    Well, it’s natural as she’s called 『Onee-chan』

    However, that is a peerless beauty

    The curvy body, the allure, and the dignified aura that can be felt from far away, her overflowing charm cause every men to gulp

    That woman was saying something to a line of people at a different area in this same training ground

    It looked like she was coaching them, but when she heard Selen’s voice and turned back, she seemed perplexed somehow while rushing over here

    「Jira! Is that Jira!?」

    「Yes, but you are？」

    「Did you already forget! I am Forte!」

    nn？

    It takes me several seconds to ponder。

    I finally remember

    5 years ago, an incident that became the motive for me to leave for training

    Was she the girl I helped during that street quarrel?

    「The one from that time……!? Long time no see, we have met again」

    「I always thought we could meet again. A strong person like you. If you aim at that same goal as mine, then surely we will met again somewhere」

    「The same goal？」

    「To be the strongest！」

    No no no no no……!?

    I have never thought of that goal

    Tranquility was always my goal

    「However, Jira hasn’t changed. I could realize you with just a glance you know？」

    Even she says the same thing as Selen

    Moreover, Forte has visibly changed

    Frankly speaking, she has become a woman

    ……No, her gender was woman from the beginning so nothing changed

    However the childishness from 5 years ago has left, her body has changed completely into a voluptuous, womanly body

    The place that should be pushed out are pushed out, the place that should be tightened is tightened, the body with perfect curves has captured the gaze of every men

    To be even more frankly, her breasts have become big

    Because I’m also a perfectly healthy man, I also can’t help but being bewildered before those huge breasts, controlling my reasoning is hard

    At times like this, the reasoning power I trained under 『Tanu-sage』 has proved to be useful

    「Well, other than that, why are you together with my sister?」

    The first method to keep one’s reasoning, changing topic

    By forcefully switch the topic, my interest will also be moved to that!

    「That is what you would say?……5 years ago, in order to express my gratitude for saving me, I paid a visit to you once again. But you already left for training and wouldn’t return for a few years」

    「Ah」

    Such a thing happened after I left?

    Without waiting for her returned gratitude, I left for my training. As if recalling that time, Forte blamingly stares at me

    「I also met Selen at that time. If I recalled correctly then she was the one jumping in to help even before you. So I didn’t forget to thank her too」

    「I see」

    「At that time Selen looked really lonely. It can’t be helped as you, her brother was not there. So I decided to at least act as her playmate」

    That was very thorough of her

    Thanks to Forte’s visit, it looked like the loneliness of Selen was filled

    And it seemed like not long after, Selen has longed for Forte like an older sister

    「Selen also decided to receive combat practice」

    「Why？」

    「At first, she would only watch my training nearby, but since who knows when, she said she also wanted to do it. I let her do it at a test, but even I was amazed at her strength! The scout from the military also came and she became an elite candidate！」

    「I mean, why？」

    Why did my cute sister become like that？

    Emphasize at “cute” and “sister”!

    Such a child is trained for battle!?

    「If she is really appointed as an elite, what should I do if she would fight at the frontline!?」

    The empire is a super aggressive country

    They can wage war at anytime, anywhere

    If you become a member of that imperial army and fight at the frontline, there will not be enough lives, no matter how much you have

    In the empire, it’s the duty to serve the military service at the age of 15, but that is only for men

    Not applied to woman

    However, if one is recognized to have talents or have certain ability, even women would be called and could be active like men

    That can be said as a merit system uniquely for a military country, and my sister Selen is certainly following that route

    However, that is a really bloody road

    I don’t want my sister to step on such a dangerous route