While Taking Care of My Shut-In Little Sister, I Somehow Ended Up Ejaculating Inside a Beautiful Girl - Chapter 56: Anomaly?

Chapter 56: Anomaly?

The person was twirling the ends of her short hair until she spotted us, then flashed a gentle smile.

“Oh, it’s Mom.”

“Auntie…?”

As Yuu and I returned home, a woman—not an auntie, but a beautiful one—Yuu’s mother, Kiyomi Onodera, appeared at the Onodera family’s doorstep. A paper bag sat at her feet, but what’s the situation? Yuu and I approached the entrance.

“Welcome back, you two.”

“I’m home!”

“I’m back.”

Kiyomi, one elbow propped on her other hand, cheek resting on it, wore a clearly perplexed expression.

“Haa…”

“Mom, what’s wrong?”

“It’s not ‘what’s wrong.’”

Kiyomi sighed, casting an exasperated glance at her daughter. The sigh seemed aimed at Yuu.

“Honestly, Yuu…”

Despite her youthful, thirty-something appearance, she carried the calm air of Yuu’s mother.

I call her “Auntie,” which she doesn’t mind, but other names feel unnatural, so I stick with it, feeling a bit guilty each time.

“…Ren-kun, is Yuu causing you trouble? You okay?”

Kiyomi smiled wryly, concerned about her daughter’s frequent sleepovers at my place.

“No way, she’s no trouble. She’s always helping me out.”

“Really…?”

“Mom! I’m not bothering Ren-chan!”

Yuu protested, slightly miffed.

“You say that, but sometimes the one causing trouble doesn’t even realize it.”

“But! Even if I was, Ren-chan wouldn’t hold back! He’d tell me if I was a bother, right, Ren-chan!?”

“Yeah… but, like, calm down, Yuu.”

It’s not a full-blown parent-child fight, but with neighbors around, being loud at the doorstep might bother Kiyomi. Let’s move this along.

“Auntie, sorry for borrowing Yuu so often these days.”

“It’s fine, but… I’m worried…”

Kiyomi’s concern is understandable.

Even if we’re neighbors and childhood friends, a teenage girl staying over at a teenage boy’s house night after night…

Kiyomi and her husband know Yuu and I are dating, but they must worry about what happens during these sleepovers. They don’t say it outright, but things like whether their daughter’s being taken advantage of sexually probably cross their minds.

Until now, they’ve watched warmly without comment, but…

“I’m worried… that Yuu might mess up and make Ren-kun fed up with her for good…”

“Mom!!”

…What’s she even worried about?

Kiyomi sighed again, her troubled act almost theatrical.

Yuu protested fiercely, but Kiyomi ignored her, pulling a neatly wrapped box—likely sweets—from the paper bag. It’s from a nearby confectionery, a pricey one.

She held it out to me.

“My daughter’s a handful, but… would you take this?”

“Huh!? No, really, your kindness is enough! Yuu’s been a huge help at my place…!”

“Don’t say that. Please take it. Think of it as lodging fees… and don’t get tired of her, okay…?”

“Mom, stop saying it like that!!”

“No, really, it’s fine—”

Kiyomi, brimming with apologies, wouldn’t retract the gift. Feeling guilty but unable to refuse, I accepted.

“Th-Then, I’ll gratefully take it…”

“Please, please♪ Take care of my daughter♪”

“Ugh…! Mom, come on, get inside!”

“Aw, noo~♪”

“Don’t make weird noises!”

Yuu, grabbing the empty bag, pushed her mother into the house.

“…Sorry, Ren-chan! I’ll change and come over soon! Wait for me!”

“Y-Yeah…”

They disappeared into the Onodera house, and as I watched their backs, the front door slammed shut.

What a whirlwind of a mother and daughter…

[—! That’s why—!]

[Alright, alright—]

From inside, Yuu’s defiant voice and Kiyomi’s soothing one echoed faintly.

“…”

The lively bustle at the Onodera doorstep vanished, leaving a quiet, almost lonely air.

To paint the picture: me, standing dazed, schoolbag in one hand, sweets box in the other.

No one’s around, just the usual scenery.

“…Time to head home.”

With the sweets box in hand, I walked to my neighboring house, feeling oddly wistful.

*

“Here I cooome~”

Yuu, now in a beige knit top and jeans—a casual, easy-to-move outfit—carried a backpack with overnight clothes. Entering my house, she pouted.

“Sorry for the ugly scene earlier~”

Her apology was half-hearted, still tinged with irritation.

“No need to be that mad.”

“But…”

She shot me a sulky, resentful look. Her mother’s belittling in front of her boyfriend stung, and my lack of defense probably added to her grumpiness.

“Auntie’s just worried about you. She approves of us—heck, she’s cheering us on. Listening to a bit of nagging wouldn’t hurt, you know.”

“I know, but…”

As she aligned her shoes at the entrance, her mood visibly lifted.

Switching gears, she glanced meaningfully at the front door.

“Wanna hit the supermarket after some quick chores?”

“Sure. What’re we buying?”

I’m pretty sure the fridge, including the veggie and freezer compartments, has enough stock.

“Gotta buy unagi♥”

“Got it…”

I nodded easily—maybe too easily—but with that settled, we knocked out the chores (minus cooking) and headed shopping.

*

Dinner time. I noticed a strange shift in Yuu.

The kitchen and living room filled with the savory aromas of various dishes. Tonight’s lavish meal centered on unaju—unagi kabayaki over rice.

A portion for my sister was prepared, of course. All that remained was plating the dishes perfectly, which Yuu handled. My job was to take my sister’s portion upstairs, while we set ours on the living room table.

As I grabbed the tray with my sister’s meal—

“—Wait!!”

“Wah!?”

Yuu’s sudden shout startled me, nearly making me drop the tray. Thankfully, the food stayed intact.

“What’s wrong?”

“I-I’ll take it…!”

“Huh?”

Yuu snatched the tray from me and bolted upstairs.

“…?”

I didn’t get why she was so desperate, but if she’s helping my sister, I’m grateful. I focused on setting our meal on the living room table.

*

Nighttime, nearing bedtime.

Click.

“Huh?”

Yuu, fresh from the bath in pajamas, entered my room and locked the door behind her, startling me.

“What’s up?”

“Nothing.”

She stared into space with a blank, Noh-mask expression, blinking her long-lashed eyelids, answering only, “Nothing.”

“But you just locked—”

“It’s nothing.”

“…”

Obviously, only Yuu, my sister, and I are in the house.

Yuu and I sleep in my room, on the same bed.

My shut-in sister never leaves her room, so…

There’s no need to lock my bedroom door.

“…”

Yuu kept staring blankly into space, then turned the same expressionless gaze on me.

“What’s wrong?”

“…”

This blank look—it’s her habit when suppressing major emotional turmoil.

It might even signal she’s at her limit, but I don’t know why.

Noticing her glossy black hair, still damp under the ceiling light, I grabbed the spare hairdryer kept in my room, separate from the bathroom one.

“Yuu, your hair’s still wet.”

“…Yeah.”

I sat on the bed, firing up the noisy fwooo of the dryer. Yuu walked over and sat beside me.

“…”

“…”

The dryer’s hum filled the room until her hair was dry—about ten minutes. Long hair’s a hassle to care for.

“…Ren-chan.”

“Hm?”

For some reason, I had a bad feeling.

“…Ren-chan, you…”

“Yeah?”

“…Ren-chan…”

“…Yeah?”

C’mon, spit it out, I nudged lightly. She opened her mouth slowly.

“What do you think of Shiori-chan…?”

“…Huh?”

For a moment, the room’s light felt blindingly bright.

In that light, she—

“Do you like Shiori-chan?”

Sitting beside me, with a blank face and flat voice, she fixed her deep, abyssal eyes on me.

“Have you ever seen Shiori-chan as a woman?”

“……………………Huh???”

I was utterly confused.