The Dual Swordsman Who Lost Both Arms On Stream to Save His Doomed Party Gets Exiled—Then the Heroines Go Yandere

Chapter 15: Reunion with the Admired Big Sister

――――【Nezha’s Perspective】

Shima-neechan made up some excuse about me feeling sick halfway through and brought me to her territory, the nurse’s office.

I figured a school nurse wouldn’t do anything weird at school, and with the nostalgia kicking in, I ended up following her…

“Eh!? Th-this is…”

“What’s so surprising? In a school with a department related to dungeon exploration, this is normal, right?”

When I stepped inside, it looked less like a nurse’s office and more like a clinic… no, even more like an advanced medical facility.

The space was about the size of three classrooms. The left side had hospital beds, the right looked like an operating room, and only the center area where we were now felt close to a regular nurse’s office.

“But wasn’t this supposed to be shut down?”

“It costs a fair amount to dismantle it. Besides… I had them leave it for my research.”

I’d heard Shima-neechan was a genius who held a medical license, a teaching license, and even a doctorate in mechanical engineering. She was too smart, but lacked ethics when it came to going after an underage guy like me…

At her urging, I sat down. The sink area in the nurse’s office was set up like a kitchenette, and as steam rose from the electric kettle there, Shima-neechan poured hot water into a cup.

She brought it to the table in front of my seat, but her hand stopped midway.

“Well, we have a lot to catch up on. Drink some coffee. Oh, right, you don’t have hands. Sorry about that.”

“It’s fine, I’m used to it. Just put it there… hey.”

As I leaned forward to take off my shoes, my view got blocked. Shima-neechan’s breasts were pressing against my face.

“Shima-neechan, that’s hitting me?”

“Yeah, I’m doing it on purpose.”

“You’re holding boiling water, that’s dangerous.”

“Yeah, if it spills and scalds us, we’d both have to take off our clothes.”

Shima-neechan was the same as always, always steering things in a weird direction.

“Oh, I almost forgot something important. Compared to when Nezha lost his virginity with me, my breasts have grown about twenty percent. Don’t you think they’re even more worth squeezing now?”

“No, I don’t.”

She squeezed them herself with soft thuds to show off. They were already big when I was in middle school, but this wasn’t the kind of gesture to do in front of a healthy student.

“But unfortunately, no breast milk comes out. So milk coffee is out of stock today. You might be tired of looking, but if Nezha wants to see my breasts, I can demonstrate putting milk in?”

“The unfortunate one is you, Shima-neechan.”

Shima-neechan made that pose foreigners do when they’re exasperated, turning both palms up.

That makes it look like I’m the one being exasperated!

“I’ll feed it to you. Nezha, just sit there.”

“No, why are you drinking it, Shima-neechan?”

Shima-neechan brought the cup she’d been about to hand me to her own lips and took a sip of coffee.

“To do a mouth-to-mouth transfer?”

“If that’s the case, I don’t want it.”

When I refused, Shima-neechan swallowed the coffee and leaned in closer to me.

“What’s wrong? We’re not at the point of holding back anymore.”

She was smart, beautiful, had an amazing figure, yet turned down every marriage proposal that came her way, obsessing over someone like me…

I got fed up with Shima-neechan’s excessive skinship and tried to stand up. Shima-neechan got startled and lost her balance.

“Whoa!?”

Her heel slipped, and Shima-neechan started to fall on her butt, but she was holding the cup of boiling coffee—if she fell like that, she’d get severe burns.

Make it in time!!!

【God’s Invisible Hand Invisible Arms】

When I activated the skill, invisible arms appeared that others couldn’t see, supporting Shima-neechan’s back and the hand holding the cup.

“What? What happened? I just lost my balance and was about to fall. But here I am standing in front of Nezha. Still, making Nezha drink the coffee comes first.”

Good.

She didn’t notice I used 【God’s Invisible Hand】.

“How is it? Does the coffee fed from me taste good?”

“Yeah, thanks. It’s deli…cious… Huh, why am I suddenly getting so sleepy…”

Even though it was daytime, my eyelids grew heavier and heavier, and my body swayed back and forth.

“Good night, Nezha. You’re too good a boy…”

Just before my eyelids closed completely, Shima-neechan murmured that to me.

I woke up to the sound of a machine measuring vital signs. When my consciousness returned, I was lying on what seemed like an operating bed, with my upper body naked.

What!?

“Good morning, Nezha.”

Lowering my gaze further, Shima-neechan was straddling my waist.

“Shima-neechan!? What’s this?”

“You’ve changed so much. It’s really different from middle school. You’ve gotten so strong… I’ve fallen for Nezha all over again.”

She stroked my chest affectionately. The soft touch of Shima-neechan’s hands felt good, and my lower body started getting excited.

“Getting excited over someone like me again, Nezha’s such a kind guy. Just like I thought, Nezha’s a tsundere.”

“No, that’s not… I don’t do this kind of thing…”

“I held back. When I found out Nezha was dating Yuki. But you don’t need to worry about Yuki anymore.”

“You knew…”

“Of course. I’m Nezha’s stalker, after all…”

I couldn’t help remembering the day Shima-neechan took my first time.

It was a hot summer day.

Dad was at work, and Mom had gone shopping with Hinako.

I was alone on the porch eating a milk ice pop when Shima-neechan came home from school and suddenly bit into my ice pop.

“Shima-neechan, what are you doing? That was mine, that’s bad manners.”

If she wanted one that bad, I pointed to the freezer, but Shima-neechan…

She licked the melted ice off her lips with her tongue. I remember how seductive that gesture was, not the kind of sex appeal a student should give off.

“I got confessed to again.”

“Hmm, what kind this time?”

“Some soccer club captain. The girls in class would scream and go wild calling him hot just because he showed up. Apparently, he’s a promising player set to join a soccer league in the future.”

Going wild… That was such a Shima-neechan way to put it, I thought even as a kid.

“Are you going to date him?”

“Don’t be stupid. You think I’d date a guy like that? Nezha, I’m disappointed in you.”

“Why am I the one disappointing…”

I was about to protest when Shima-neechan grabbed both my wrists and slowly put her weight on me.

No matter how slender Shima-neechan was, a kid like me couldn’t resist. My back went past the porch boards and reached the tatami inside the house.

“Shima-neechan?”

“I need to make it clear who I belong to. I hate even being talked to by random guys.”

She whispered in my ear, breathing out warmly.

Shima-neechan’s breasts, not like a student’s, pressed against my chest.

The cleavage I’d seen when she tried to come into the bath with just a bath towel… It might even be bigger than Mom’s if I wasn’t careful.

The soft feel of her breasts, plus Shima-neechan’s sexy gesture earlier, made my lower body swell so much it was about to burst in my shorts.

Shima-neechan pressed her crotch against me, teasing and tormenting the bulge…

“Ah…”

“Does it hurt? Then I’ll teach you a good way. Slip it into this gap, and it’ll feel better… no, good.”

Shima-neechan stood up, took off her panties, and showed me her bare white skin. For some reason, it hurt even more than when she was grinding against me.

“Seeing Nezha look at me is exciting me too.”

There was a dark stain on my shorts.

“Oh, sorry. Looks like I wet myself and got Nezha’s pants dirty. I’ll take them off for you, so stay still.”

Shima-neechan undid the hook on my shorts and pulled down the zipper.

“Shima-neechan, wait after all!”

“I won’t wait.”

With a declaration that sounded merciless, Shima-neechan pulled down my shorts and underwear together. Even if I tried to escape, they were at my knees, so I couldn’t move my legs.

“Now, Nezha. Guess what we’re going to do next.”

“What could it be?”

It was before I’d had proper sex ed. Thinking back, Shima-neechan probably made me think to create an opening.

“Hah, hah, we’re connected, Nezha.”

“Eh!?”

It was when my consciousness cleared.

White pee from Shima-neechan…

“Hehe, looks like I’ve been marked by Nezha. Now I’m Nezha’s. You can use me whenever you like.”

Saying that, Shima-neechan lifted her skirt and showed me her lower body without panties.

“Nezha-ku~n, let’s play.”

“Yuki!”

Yuki’s voice came from the entrance.

“It’s over already… and it was getting to the good part.”

Shima-neechan looked a bit sad. She turned her back to me, sighing as she put on her panties, looking sexy, and my hastily pulled-up shorts felt painfully tight.

I ran awkwardly down the hall, nearly tripping but holding it together, and opened the door.

“Yuki!”

“Nezha-kun! Let’s play.”

“Yeah, I’m good, but…”

Feeling a presence behind me, Yuki spoke up.

“Shima onee-chan was here too…”

Shima-neechan leaned on a pillar, looking down at us.

“Yeah, sort of. Yuki, there’s ice pops in the freezer. I got one, but I’ll give it to you.”

“Really!?”

Yuki headed to the kitchen freezer.

“Heh, she’s more mature than kids her age, but Yuki’s still a child.”

Shima-neechan leaned against me and forcefully took my lips.