The Saint Next to Me Who Sometimes Comes Without Wearing Underwear Tells Me What’s Under Her Skirt in Secret - 15-16

Chapter 15

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After finishing the additional order and returning to studying—

“…Hey, Himuro-kun.”

Saotome spoke to me. I should have been focusing on my studies, but ignoring Saotome would’ve come off as rude. Or at least, that was the excuse I gave myself as I turned my gaze toward her.

“What is it?”

“What color do you think it is today?”

Saotome said that with a faint blush on her cheeks and she had a somewhat satisfied expression.

So that’s what she’d been wanting to say all this time. But what color today, huh…

I shifted my thoughts away from the questions in the reference book and toward what was under Saotome’s skirt. I hadn’t exactly been keeping count, but the most frequent color Saotome wore under her skirt was black. 

She seemed to like black underwear. Next most common was white. After that came blue and red. Pink was surprisingly rare. Occasionally there were colors like yellow or green—other variations.

I could safely rule out the possibility of “not wearing any” this time. After all, she wouldn’t have asked “What color do you think it is?” unless she was wearing something.

So statistically speaking, black was the most likely answer, but adding other factors could change that. For example, when there were gym classes, she tended to wear white more often. Maybe black camisoles or bras were too sheer and made her feel embarrassed.

White could also show through, but…It was less obvious than black.She also seemed to choose based on her mood for the day and today…

“Red, maybe?”

“…Why do you think that?”

“To get yourself fired up.”

On days when she needed to get motivated for something—like tests—she seemed to choose red more often. Of course, there were exceptions.

“Hm, I see… Your answer makes sense.”

“Am I right?”

When I asked, Saotome beckoned to me with a small wave. I doubted anyone nearby was eavesdropping, though. I leaned in and brought my ear close to her just to be safe.

“Blue.”

Saotome’s breath tickled my ear. Then she smiled smugly.

“Too bad.”

“…I see.”

Somehow, that annoyed me.

“I wanted to feel calm and focused, so I went with a cooler tone.”

Can your mood really be affected by your underwear color?

I tilted my head slightly, a bit skeptical.

“But still, you’re right about one thing. The feelings connected with the underwear are important too.”

“…The feelings?”

“Well, you know… Like, victory underwear or something. You know, the underwear you use for special occasions.”

For some reason, Saotome said that with a self-satisfied grin.

“Huh.”

The opponent was a textbook, but… Maybe it did help? Though I wasn’t sure if that would actually boost your motivation.

“What kind of design do you think it is?”

“U-uh… Hmm…”

Even if she asked about the design… I had no clue what the design of women’s lingerie was supposed to be. Honestly, they all looked the same to me.

“Fundoshi? …No, just kidding.”

When Saotome’s eyes turned icy, I hurriedly corrected myself. Still, when it came to underwear designs that seemed motivating, a fundoshi was the only thing that came to mind.

“…Not entirely off the mark, actually.”

“Huh?”

Wait Was she seriously wearing a fundoshi? As I sat there stunned, Saotome beckoned me again with a small wave. When I leaned in…

“It’s a T-back.”

Saotome whispered it.

Ah, I see. Yeah… I guess that’s… Close enough?

“On the day of the test, I’m planning to wear the red version of the same design.”

A red T-back, huh. So that was her battle underwear. Just imagining it made my heart skip a little.

“Changing the subject, Himuro-kun.”

“Y-yeah?”

“Would you go on a date with me once finals are over?”

“A d-date!?”

My voice cracked unintentionally. Talking about battle underwear and then immediately asking for a date—it made me start getting my hopes up a bit. Of course, thinking rationally, I knew Saotome probably didn’t mean it that way.

“You mean, like tagging along while you shop?”

“Something like that.”

So I’d just be carrying bags. Not that I minded though. As I was about to say that—

“And well, I kinda want to have a little fun, too… Is that okay with you?”

She asked with an upward glance. My heart gave a heavy thump at that.

“…Of course, it’s not not okay for me.”

“I’m glad. Then it’s settled. See you on the weekend after finals.”

Saotome smiled happily.

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Chapter 16

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My name is Sayaka Saotome. I’m a beautiful first-year high school girl.How beautiful, you ask? I’m the second most beautiful girl in all of Japan.By the way, the number one beauty in Japan is my half-sister, Seira Saotome. A stunning, kind, and graceful… She’s my beloved onee-sama.

But lately, Onee-sama had been acting strange. 

“Welcome home, Onee-sama… You were out late.”

“…Yes.”

She occasionally started coming home late. Both my onee-sama and I attended the same school. She was a grade above me—a second-year—but there shouldn’t have been much difference in our dismissal times.

“…Did you go out somewhere with friends?”

“Well… Something like that.”

Onee-sama slightly averted her eyes. She looked uncomfortable. Her face was also a little flushed.

… How suspicious.

“Is it a boyfriend?”

“Huh?”

I asked, just to test the waters. Of course, I was joking…

“N-No! It’s not!”

But onee-sama denied it louder than usual, even though she was always calm and composed…

“A-A perv— I mean, never mind.”

A perv…? A pervert!?

Onee-sama had almost said something very concerning, but when I looked, her expression had returned to its usual composed state.

“It’s not a boyfriend. …Just a friend. Don’t tell grandfather and the others. They’re annoying about that kind of thing.”

“…Y-Yes, of course.”

When I nodded, onee-sama briskly walked off. …Something didn’t feel right. Some time passed, and it was a day off.

“~♪”

That day, Onee-sama seemed to be in a very good mood. Even though she was usually grumpy in the mornings, she was humming today of all days. She was also brushing her hair more carefully than usual and on top of that, she had done her makeup perfectly, something she normally didn’t bother with.

…So far, it was fine. I could chalk it up to her going out with friends, but what caught my attention was her outfit.

A sheer top and a black mini-skirt. It was… A bit revealing. It felt more like she was dressing for male attention rather than hanging out with female friends. She didn’t usually wear anything like that. In fact, I was shocked she even owned clothes like that.

“Is this too bold? No, but… This much should be okay…”

Onee-sama mumbled to herself in front of the mirror. She had been carefully inspecting her outfit for over ten minutes. Normally, she was so indifferent about these things…

It had to be a boyfriend. That must be it. No one would dress up and stress this much over meeting a female friend.

Even Onee-sama, who normally showed no interest in men, had finally found her spring season. To be honest, I felt conflicted. There was a part of me that didn’t want to hand my precious Onee-sama over to some random guy from who-knows-where, but right now, she looked so happy. Her skin was flushed slightly… To put it simply, she had the full-on look of a maiden in love.

As her little sister, I should probably be rooting for her love and happiness.

I suppressed the jealousy in my heart and cheered her on silently.

You got this, Onee-sama!!

“…Alright.”

At the exact moment I sent my silent cheer, Onee-sama clenched her fist slightly. It looked like she was satisfied with her outfit.

Then, as if putting on the finishing touch, Onee-sama slipped her hand under her skirt. She pulled out a pair of black lace underwear—oddly sexy—and stuffed it into her bag.  

…What? What!? WHAT!?!?!?  

My brain froze. Onee-sama, still humming, passed by me and then she left the house. Yes. She left the house without wearing anything underneath.  

“What? W-Why… Why!?”  

I couldn’t understand why she wasn’t wearing underwear. Because it was hot? No, that couldn’t be it. To begin with, that sheer, frilly underwear with barely any fabric wouldn’t make a difference in temperature whether she wore it or not.  

Could it be Onee-sama’s preference? An exhibitionist streak!? No, that was impossible! There was no way my refined and delicate Onee-sama could have such a perverse fetish!!   Then whose… Could it be!? Her boyfriend’s preference!? She did mention a pervert…  

But even if her boyfriend was a pervert, there was no reason for Onee-sama to go along with it. Which meant… Could it be!?  

“She’s being blackmailed!?”

Is someone holding something over her!? Is she being trained to suit his preference!? Like in those naughty books!?

N-No way…   To think someone could have his way with my beautiful, refined, and delicate Onee-sama… I’m jealou—no, that’s not it!!  I will never forgive him!!! Absolutely unforgivable!

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