How I Ended Up with an Extreme Yandere Landmine Beauty When I Asked to Hang Out with My Best Friend's Sister to Get Better at Talking to Girls - Chapter 7-8

Chapter 7: The Yandere Little Sister Isn’t the Only One!?

Maki’s little sister… Does that mean Mayana-chan?

Saito Mayana.
She was Maki’s sister, one year younger, and came from the same ordinary middle school as me and Maki, but she was extremely good at academics and always came in first—Maki used to brag about her all the time with a proud look on her face.

The last time I saw Mayana-chan was when she was in her second year of middle school. Her features were just as beautiful as Maki’s, but while Maki had semi-long hair, Mayana-chan had a neat short bob that gave her a refreshing look.

Whenever I went to Maki’s house to hang out, I often ran into her in the hallway on my way to the bathroom for some reason, so my memory of her is a little fuzzy, but I still remember.

Even when I greeted her in the hallway, she never replied, and she was a quiet, unsociable girl… right?

“But if she knows about Azuri, does that mean Mayana-chan went on to Yuri ga Oka?”

“Yeah. Mayana didn’t choose our high school. She picked Yuri ga Oka starting this year.”

Going to Yuri ga Oka for high school is impressive.

Almost all the students there come up through the internal system from elementary school…

“Um, the rumors about me that you heard from Saito-san… what exactly are they about?”

“You’re in the same dorm as Mayana, the White Lily Hall, right?”

“Y-Yes, that’s right.”

“Then… you know what I mean, don’t you?”

Maki gave Azuri a wicked look while putting pressure on her.

H-Hey, hey, what kind of rumors did she hear, anyway?

“Wait just a minute! Please, absolutely don’t say it!”

“H-Hey, Azuri? You have some dangerous idea what this is about?”

“Of course I do! Ryoya-san, you have five or eight secrets in your private life that you can’t tell anyone about either, right?”

How many are we talking here!!??

Normal people don’t have that many!?

“Azuri-chan? You understand what will happen if you do anything strange to Ryoya, right?”

“Y…Yes.”

Maki had completely taken the upper hand over Azuri.

As expected of Maki… but seriously, what kind of secret is it?

“Look, Maki, Azuri wouldn’t do anything weird, so relax. She’s genuinely kind and a good person.”

“R-Ryoya-san…♡”

When I backed her up, Azuri looked up at me with teary, glistening eyes.

“Hehe… Then Ryoya-san, won’t you come to my room today? In a girl’s room, I’ll teach you everything about a girl, nice and thoroughly♡”

“T-To Azuri’s room!? Is that really okay?”

“Wait a second! That’s not okay at all!”

“I properly got permission from the dorm supervisor to invite a friend♡ So please rest assured, Ryoya-san.”

“Uh, um…?”

To Azuri’s room… me!?

I never thought things would turn out like this.

But going into a girl’s room feels… a bit too much.

Is this part of the training too?

I was the one who asked for her help in the first place, so it feels wrong to complain…

“Hehe. It’s okay, Ryoya-san. Just the tip♡”

“You! Just like the rumors say, you’re totally two-faced.”

“Well then, childhood friend Maki-san. Good day to you♡”

“Grr…”

Azuri grabbed my arm and started pulling me along forcefully.

And so I ended up going to Azuri’s room.

☆☆

We walked to the dormitory next to Yuri ga Oka.

Th-This place… is the no-boys-allowed ladies’ academy.

“Hey, Azuri. You really got permission, right?”

“I did♡ Come on, come on♡ Ryoya-san, I… am fully prepared♡”

P-Prepared…!?

Just what exactly is Azuri planning to teach me…!

“Um, I do have proper permission, but… just in case, if a boy enters through the front gate, bad rumors might spread, so Ryoya-san, please come in through this back entrance—”

“Hey, you there… twin-tails landmine girl.”

As we were talking in front of the dormitory gate, a calm, composed voice suddenly came from behind us.

When we turned around, there was…

“Uh, you’re… could it be?”

“It’s been a while… Ryoya-senpai. I rushed over after getting a message from my older sister… telling me to stop Niijima-san.”

Standing behind us was Maki’s younger sister, Saito Mayana.

Her light-colored short bob reached her shoulders, and her pale skin stood out.

Her small, beautiful face, sharp eyebrows, and piercing eyes perfectly expressed her cool personality.

“Hey, Niijima-san… if you’re not going to do anything strange, can I come to the room too?”

“Guh… Saito-san…!”

Niijima Azuri, Shinichi’s younger sister, and Saito Mayana, Maki’s younger sister, began glaring at each other… with me caught right in the middle.

—

Chapter 8: Best Friend’s Little Sister (Landmine) VS Best Friend’s Little Sister (Cool)

“Niijima-san… It’s okay if I come along too, right?”

“S-Saito-san…”

Right in front of me, a glaring showdown was unfolding between the best friend’s little sister and the other best friend’s little sister.

Azuri always looked up at me with that cute, upward glance, but now she was glaring up at Mayana from below, looking just like some low-ranking delinquent.

On the other hand, Mayana was a little taller, so she was looking down at Azuri with the kind of eyes you’d give someone beneath you.

After parting with Maki, I never expected her little sister to show up on Maki’s orders.

Today really was one thing after another.

“And also, Ryoya-senpai…”

“Uh, y-yes! What is it? Mayana-chan?”

“…You actually remembered me properly.”

Mayana’s eyes suddenly shifted from the threatening glare she had earlier to a gentle gaze that was the complete opposite of her usual coolness.

“I’ve heard all the details from my older sister… I’ll take full responsibility for monitoring whether you and Niijima-san are doing healthy training.”

Mayana-chan monitoring us… I don’t think Azuri would do anything unhealthy in the first place.

“I have no intention of doing anything unhealthy!”

“…No, we can’t exactly say that’s true.”

“Huh? What are you basing that on? That’s awful, Saito-san.”

“Oh, I do have a basis. Yesterday after school… you were at the nearby Dunkin’, and 0.01 mi—”

The instant Mayana started saying some number, Azuri clamped both hands over Mayana’s mouth.

It happened so fast I couldn’t even tell what was going on.

“Ah—ah—! Ryoya-san, it’s nothing!! Come on, let’s go, let’s go~ I actually got some really nice black tea from the home economics teacher! I want to have tea time soon—of course you’re welcome too, Saito-san♡”

I didn’t really understand, but did that mean they somehow made up?

“…Ryoya-senpai, shall we go?”

“Uh, y-yeah.”

They suddenly fight and then suddenly get along—girls really are hard to figure out… but it’s also true that just being with Azuri teaches me a lot.

We couldn’t keep talking in front of the gate forever, so the three of us headed inside the dormitory for the time being.