I Promised to Make the Class Honor Student My 'Little Sister'. It Seems She Wants to Be Spoiled a Lot - Volume 1 Chapter 5.1

Chapter 5: Me, Becoming a “Brother,” Thinking About How to Call My “Sister”

──When I was little, my dream was to become a “Mangaka.”

I loved stories where the protagonist, along with their friends, did silly things and fought seriously against great evils, shattering them.

I seriously wanted to express myself in that way…

“Instead of wasting time on such nonsense, study!”

What my father tore up was──the illustrations I had drawn.

What was shattered was… something far more precious.

And as I was gathering the torn pieces of my drawing, crying,

My mother smiled encouragingly at me and said──.

“See, Ryuuki… Let’s study so you won’t get scolded by your father, okay?”

──Looking back now.

I think my drawings were on the poor side.

Of course, I wouldn’t have become a “Mangaka” even if I tried.

But being forced onto the path of becoming a “Doctor” and not being allowed to consider any other options was──enough to lose trust in my parents.

That’s why I ran away from home.

And somehow… ended up living with a classmate girl and her cousin, who is a high school teacher.

Ah… by the way.

Since that time, I haven’t had a “future dream”──not a single one.

▲　◇　▼　◆

“Takato big brotherー. It’s morning, time to get upー”

Sunday.

The second morning at the Kakogawa house started with… Kakogawa knocking on the door.

“…What a bad dream that was.”

Why did I have to dream about that house?

Feeling dejected, I crawled out of the futon that the teacher had prepared the night before. I put on my glasses and changed into my clothes.

Then──when I opened the door.

“Ah. Good morning, Takato big brother! Hehe, it’s your “little sister” Ao!”

“…Uh, good morning?”

Faced with a “little sister” who smiled innocently like a child, I, an inept “brother,” couldn’t offer anything but an awkward greeting.

Yet, the “little sister” didn’t seem to mind and… gripped my hand firmly.

“Breakfast is ready! I worked hard on it, but I wonder if it’ll be to your taste…? But I’d be so happy if you eat a lotー”

With such a dazzling smile, it made my stomach flutter uncontrollably.

But unaware of my feelings, the “sister” started walking, pulling my hand along.

──Leading me is “sister” Kakogawa Ao, a second-year student at Inuhashouyou High School.

Her chestnut hair cut into a medium bob.

Skin as white as snow.

Lips, a radiant red against her fair complexion.

With such a striking appearance that demands a second look, combined with a gentle, considerate personality, always smiling and unable to ignore anyone in trouble,

She’s adored by everyone in our grade, blessed with both beauty and a remarkable character.

──And then there’s me, “brother” Takato Ryuuki, also a second-year at Inuhashouyou High School.

Born with sharp eyes and a mouth that naturally curves downwards when silent, making me appear intimidating to others.

So, I keep my bangs long in an attempt to hide my face a bit.

As for my personality… I’m not sure how others perceive me, but I try to behave in a non-offensive manner. At least.

Except for Chitose, I don’t really get into deep conversations with others, so maybe they think I’m a cold guy.

Such two people under one roof, making a fuss about being brother and sister…

…To those unaware of our situation, we might just seem like a “high school couple playing house”. Maybe even suspect of some immoral fetish.

But in reality, it’s not like that.

After all, Kakogawa Ao and I are not even dating.

Nor are we just classmates.

Yes, we are──”siblings” by a “Family Contract.”

“Ah. Right, Takato-kun!”

Just as we reached the first floor, the contractually “sister” suddenly… reverted to her normal classmate tone.

“I have something to tell you. I’ll only act spoiled like a “sister”… when it’s just the two of us, okay?”

“Huh? Is that so?”

Caught off guard by her unexpected words, I responded in kind.

I mean, we made a “Family Contract” with Kakogawa, her sister, and the teacher, right?

So, I naturally thought we’d act as “siblings” even in front of Kakogawa’s sister and teacher.

“Because… it’s embarrassing. I don’t want everyone to see me being all spoiled.”

“…Just to be clear, it’s not embarrassing when it’s just us two?”

“…Idiot!”

I got scolded. The “little sister” heart is too complicated to comprehend.

But well… after all, it was a contract I requested.

Okay. Let’s──embrace the “little sister’s” feelings.

▲　◇　▼　◆

“Good morning, Ao! And then… my “twin” half, Ryuuki!!”

Bursting into the living room with great enthusiasm…

Kakogawa’s cousin and our high school teacher──Kakogawa Yukari greeted us loudly.

…Sorry to spoil your mood, but it’s already noon, you know?

For a Sunday, what kind of lazy teacher is this?

“Huh? What’s up, Ryuuki? Is there something on my face? Ah, or maybe Ryuuki──got mesmerized by his “twin” sister’s face?”

“If you’re gonna spout nonsense, maybe sleep a bit more, Yukari-sensei.”

“Yukari-sensei!?”

With an exaggerated reaction, the teacher made an X with her arms in front of her chest.

Then, looking at me with her sharp, glasses-framed eyes, she dramatically said while swaying her side ponytail.

“Ryuuki… did you forget yesterday’s “Family Contract”? Ao and I are “sisters”, you and Ao are “brother and sister”, and you and I are──”twins”. That’s what we decided. And yet you’re calling me Yukari-sensei… That’s so distant. It makes me feel the gap between our hearts.”

“Ah… that’s why you’ve been calling me Ryuuki since earlier? I was wondering why you suddenly got so familiar.”

I mean, it’s not that I mind being called by my name. I’m the younger one here, and I’m in a position where I asked to stay over, after all.

So, I should change how I address you too, huh.

Well, indeed, keeping things formal while living together might be awkward…

“Understood. Let’s decide how to call you in the house then. How about “Yukari-san”, considering everything?”

“Ah. How about calling her “Yukari-nee” like me and Kizuna?”