Osananajimi no Imouto no Kateikyoushi wo Hajimetara Soen Datta Osananajimi ga Kowai (WN) - Chapter 18

I’m not sure I can chat properly with Kouki when it’s just the two of us together alone.

But it is a date. I don’t want it to be a bad memory… It could be possible that after this, I’ll never be able to go on a date with Kouki again…

“Onee-chan? Are you okay?”

“Ehh…”

Manami’s plan… I have to listen carefully.

“Onee-chan, your swimsuit probably doesn’t fit anymore, does it?”

“Heh?”

“Huh? As far as I can tell, your swimsuit from last year probably won’t fit, will it?”

“Yeah…”

How does she even know?

“I know because I look at you every day… and… your boobs are getting bigger.”

I felt so embarrassed when Manami said that straight to my face.

Manami, on the other hand, began to massage her own breasts, saying, “I’m supposed to have the same blood flowing through me…”

“Don’t ever do that in front of Kouki.”

“I know!”

Even though she said that, Manami continues to rub her breasts. When it comes to this kind of thing, Manami’s trust in me is zero. Well, I don’t really know how Kouki would react to her doing it in front of him… The other day, he saw me in my underwear, but he didn’t even not show any reaction…

“Onee-chan? Are you fine?”

“Hah. Ehh… I’m fine.”

I really need my attention back now, because I have to focus on listening to  Manami’s plan.

“Well? What am I going to do about my swimsuit?”

“Go buy some when you go out with Kouki-nii.”

“Eh….?”

Buy a swimsuit?

“Swimsuit. If you’re going to go through all this trouble, have him pick out a swimsuit and even try it on for him. I’m sure his heart will start racing!”

“His heart will be racing……? I wonder if… that’ll happen.”

He didn’t even react when he saw me in my underwear though?

“There’s no problem! It’ll definitely work!”

“Is that so…”

Just the thought of it makes my heart race. I can make… Kouki’s heart race?

If that’s true, then it’s a perfect plan! As expected of my sister, Manami! 

“When you two go shopping for a swimsuit, Kouki-nii will probably ask you if you’re going with someone. And…”

“Surely…”

I can picture the scene from my imagination. Now, I’m getting nervous…

“Then Onee-chan will say that she doesn’t have any plans, but if Kouki-nii asks you, you’ll go with him.“

“That’s about as direct as I can be…”

Manami’s imitation was so on point that I could easily imagine it.

“And then you can ask him out.”

I can’t picture this image.

“Don’t worry. I’ll take care of that!”

“You’ll…?

If Manami says so, I’ll believe her. ……

“Huh? But won’t I see that guy in his swimsuit the next time we go out together?”

“You’re already gonna show him yours, so it’s a little late to be worrying about that!”

“That’s true, but still…!”

If anything, I even showed him my underwear today. ……

I’m so embarrassed that my face still burns just remembering it. It was my fault for being careless even when I knew Kouki was coming today, so I didn’t mention it…

I was worried that he would be disgusted with me for my disheveled appearance, but it didn’t seem like he was. Though, I was embarrassed afterwards.

While Manami was questioning me, I felt like rolling around in embarrassment.

“Well, the final goal’s set… Onee-chan, at least go shopping, okay?”

“Okay…”

He’s just going to accompany me as my bag carrier. If all goes well, then we can go out again next time.

“Fufu. Have fun, Onee-chan.”

Manami’s plan reminds me that I have a really good little sister.

I’ll buy a swimsuit with Kouki, and then wait for him to ask me out, then we can go…

“Good luck, Onee-chan.”

“Yeah…”

To thank Manami, I have to make sure I get a present for her. I don’t think it’s fair that I’m the only one who gets a reward.

(TL Note: imma slow down, lots of summer stuff on weekdays)