I’m Having Trouble With a High School Girl I Meet on the Commuter Train Who for Some Reason Has Take

Second day of Bon vacation.

Due to Kaedezaka’s confession, I couldn’t sleep much.

I even had a dream about her.

This is serious …….

… and I can’t just sit around.

My sister, Aina, was coming to stay with me starting today.

Ping pong ♪　

When I had finished cleaning, the intercom rang.

When I opened the front door, a middle school girl with a ponytail on the side was standing there with a smug look on her face.

She placed her hands on her waist and looked confident, but she was still in first year of middle school…. She was short.

“Brother, it’s been a long time!”

“You’re as energetic as ever. …. Don’t clinge to me.”

“No~. Kyahaha.”

This energetic and spirited middle school girl was Aina Sasamiya…., my younger sister.

She was the stepdaughter of someone my father remarried five years ago, so she was not related to me by blood, but she was very attached to me.

“There was a family trip during Obon, wasn’t there? Why didn’t you go with them?”

“Sometimes I want to leave my father and mother alone. Nihi~.”

I see.

So Aina was being considerate in her own way.

If that is the case, as an older brother, I have to cooperate with her.

Then Aina clapped her hands together in a request pose.

“So, you know, I have a favor to ask you, Brother ….”

“What?”

“I’ve brought a friend over, do you mind if I bring her up to your house?”

“Yeah, sure.”

Considering she brought her, she was planning to let her in either way.

If it was Aina’s friend, there was no need to worry about it, just let her do as she pleased

Then a beautiful girl of about seventeen years old appeared behind Aina.

“Errr, This is Yuika-san, who is a member of the circle I recently joined. We are very close.”

(T/N: LMAOOOOOOOOOOOO)

It was kind of you to introduce her, but I know her very well.

After all, she was a high school girl whom I met every morning on the train. ….

“Good morning, Onii-San”

“….Y …… yo. Yuika.”

As expected, She was not surprised at all.

I, on the other hand, was surprised a lot, though I didn’t show it in my expression.

And my sister Aina tilted her head and looked at me curiously.

“Areh? You two know each other?

“Yeah, how about we have a little chat?”

“That’s right! Well then, it’s just right! Yuika-san, don’t be shy, come up!”

◆◆◆◆

I livee in a one-bedroom apartment, and the rent 2qs on the low side for Tokyo.

If one did not mind the fact that the apartment was old, it was a pretty good place to live.

After taking the snacks and drinks Aina had asked for to the living room, I sat down on the cushions and enjoyed chatting.

It was mostly Aina who was doing most of the talking. …

“But I didn’t realize you and Aina knew each other.”

Yuika nodded and answered.

“Yeah. I told you about my otaku friends the other day. We’re part of a circle, and the leader’s younger sister’s friend is Aina-chan.”

Yuika told me that the circle was made up of girls who liked anime and manga, and that they get together occasionally to hang out.

(T/N: Sign me up in that circle)

Still, I had heard there was a middle schooler, but I didn’t realize it was Aina. …

“Hey, bro.”

“Hmm?”

“Can I borrow the room next door to change clothes? Yuika-san will wear a new cosplay.”

“I don’t mind,….. Wait! What!? Cosplay!?”

When I looked at Yuika in surprise, she averted her gaze, a little embarrassed.

“Yuika is going to cosplay?”

“Aina-chan insists on seeing it. ……”

“Yuika is going to cosplay?”

“That’s what I’m saying.”

“Yuika is going to cosplay?”

“Don’t keep asking me. It’s embarrassing.”

As if to hide her embarrassment, Yuika entered my room with her cosplay outfit.

Wow ……, that Yuika is cosplaying …….

I can’t wait to see how she transforms.

In the living room after Yuika was gone, I picked up some snacks.

Then my sister Aina sat down next to me, grinning a bit.

“Hey, hey, brother. What do you think of Yuika-san?”

“What do you mean… I think she’s a normal high school girl?”

“Don’t you think she’s cute?”

“Well”

“I think she’s a very family oriented and kind person even if she gets married.”

“……What are you trying to say?”

I gave a quizzical look to Aina, who had been asking me strange questions.

The younger sister, with a smug look on her face not unlike a first year, covered her right eye, imitating the signature pose of an anime character.

(T/N: Someone tell me what anime is this, I forgot)

The angle of the fingers was perfect.

“Fufu~. In fact, when I first saw Yuika-san, I was so excited. I thought,’…… this person is going to be my big sister.’ “

“…I don’t understand what you mean?”

“That’s what I’m saying, She’s going to be your wife. I’ll even get you two together! Heheh!”

I thought as I looked at my sister who was adorably making double peace signs.

It seems that I’m about to have another source of anxiety. ……