It's a Chastity-Reversed World, But It's Different From What I Imagined? - 79

Chapter 79: Did She Realize?

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It was the end of summer. I had gotten pretty used to spending time alone with Tsuki.

In the spacious living room sat a sofa big enough to sleep on and there was a hundred-inch television along with a huge window overlooking the city. At first, the luxurious space that made me realize I was born as a rich man’s son felt unsettling, but lately I had grown used to it—and milk tasted especially good when I drank it while looking down at the city.

“Nii-san… Can we talk for a bit?”

It was nothing more than a scene from our ordinary everyday life.

“What’s up?”

Dusk,that ambiguous time connecting this world and the next. Tsuki suddenly rushed toward me, pushing me up against the window. Not a kabedon, but a madodon—a wall slam turned window slam.

“…I’ve felt something off since before I entered high school. I started wondering if the big brother I know is really the big brother I have now. Back in middle school, you were unreliable. You were tall, but I always thought I had to protect you. That was the impression you gave off”

Even though she was my little sister, Tsuki’s face—beautiful as any girl’s—was so close. And with that serious look on her face, her well-proportioned features seemed to carry a trace of anger.

“S-so what? Your big brother’s fine now. So, Tsuki, just do whatever you like. You don’t need to worry about me.”

“No, that’s not what I mean. Hey, Nii-san… Are you really the brother I know?”

Her words hit me like a blunt weapon to the head. No one had ever said anything like that to me before. Back in middle school, Yoru hadn’t talked to anyone. Even his own sister, Tsuki, had only ever called him gross. They never had any real conversation.  Even with Yuuna or Yui-san, Yoru had only ever messages or it was just them talking one-sidedly.

So I thought no one would ever notice. I had come to believe that I would simply become Yoru, unnoticed by anyone. And yet, hearing those words from Tsuki left me shaken.

When? Where? How? Why? When did Tsuki notice? It had been about half a year since we started living together. During that time, I hadn’t done anything particularly suspicious. I just paid a bit more attention to my appearance and got serious about exercise.

“What do you mean by that?”

Cold sweat ran down my back. What would happen if she found out I was a reincarnated person? My brain spun at full speed, recalling what had happened to other reincarnators in this chastity-reversed world.

“Be quiet for a second!”

Her sharp tone and glare froze me in place. Then Tsuki suddenly reached for my shirt and began unbuttoning it, one button at a time.

“Wh-what are you doing!?”

“Shut up.”

She undid every button, lifting up my shirt. I had no idea what she was thinking.

“Your face and body… They’re definitely my brother’s.”

Tsuki lifted my shirt and peered at my side, checking something before falling into thought again.

“Take it off.”

“Eh?”

“Just take off your shirt.”

“…Okay.”

I did as I was told, taking off my shirt and handing it to her. Tsuki brought the shirt close to her face and began to sniff it.

“Yeah. No mistake. It’s Nii-san’s scent… But… Hey, Nii-san.”

“Y-yes!?”

She was terrifying! Her glare was so intense it was almost demonic.

“Are you my brother? Are you really my brother?”

I couldn’t tell whether she was angry or frightened—her question didn’t quite reach the truth.

“Yeah, I’m your big brother, Tsuki.”

It wasn’t a lie. I was Yoru, and Yoru was me.

“…I see.”

Tsuki began to back away from me. I was still shirtless, so I wanted her to return my shirt, but she kept holding onto it tightly as she stepped back.

“Nii-san… You’re not my brother.”

“Eh?”

“The brother I know is really kind. He’s gentle, timid, and when I corner him, he gets flustered, stammers, and can’t even look me in the eye. Lately, he’s been trying hard to be a little more cheerful, so I let him be. But… Something always felt wrong, and during the trip to the hot springs the other day, I became certain. You’re not the brother I know.”

She found out! At the hot springs? No, she must have sensed something all along. Tsuki had been living with me the whole time—no matter how far apart we were, she could tell something was amiss.

“Who are you? What did you do with my brother? Tell me!!!”

Tsuki clutched the shirt I had been wearing to her chest and demanded to know where Yoru was. I couldn’t keep quiet anymore. In this world where gender morals were reversed, reincarnated protagonists… In good scenarios, people would simply say their personalities had changed for the better, that they’d become kinder—and all the women, even their family, would come to love them.

In bad ones, if their souls had switched, they were no longer family, and were degraded into sex slaves.

……

………………

Hmm? Both outcomes sound kinda good, doesn’t it? No no no—get a grip, me.

I had Ran-san now. No matter how cute and beautiful Tsuki was, I couldn’t lay a hand on my own sister. Of course, I couldn’t let her lay a hand on me either.

“I’m Yoru. That’s the truth. It’s just that my middle school years were my dark ages. No one talked to me, even my family called me gross, so… I decided to change!”

Before I knew it, my tone had grown harsh, and I found myself shouting at Tsuki.

“…I see. That’s enough.”

Still hugging my shirt, Tsuki turned and went back to her room. I slumped down by the window and let out a long breath.

“I always thought a day like this might come. But… What the hell am I supposed to do now…”

Unable to sort out my feelings, I lifted my head and gently banged it against the window.

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