The Eighteenth Night: My Wife's Overnight Stay

Eventually, that night my wife wouldn't talk to me no matter what I said and we ended up sleeping in separate rooms. From her behavior, it seemed like she was fully aware that I had instigated things with Maa-kun just as he had predicted.

The next morning, my wife hardly spoke to me at all and left with an air of authority. Left behind, I was simply at a loss while her parents watched over us with concern.

Now what should I do? Should I chase after her and bring her back? Or should I apologize profusely with my head bowed?

Hmm...either way seems like it will only make things worse.

Before long, the time had passed noon. What is my wife doing now? Is she cleaning up Maa-kun's room like a good housewife or cooking meals for him? Are they acting like newlyweds and being lovey-dovey or are they already...doing it since early in the morning?

Images of yesterday's affair between my wife and Maa-kun flashed through my mind.

Should I really barge into Maa-kun's house? No, that would be bad. Above all else...a dark desire within me wants to see it happen. If I go there, then surely temptation will take hold of me; this is not something easily undone...

Before long, whether or not to go retrieve her has turned into a conflict about whether or not to peek on them instead - this is bad...

So let's think about what comes next: first off "Will she come back properly?" That much doesn't worry me because whatever actions she takes towards me are just retaliation; once satisfied she'll definitely return home - at least that's how it should be...

But can we really say for sure? The other party is different from myself: he's young and pure-hearted sportsman who chose living together after revealing his passionate feelings which were hidden until now… If Maa-kun brings it up, then I'll surely start to doubt everything and negative thoughts will begin to surface. The feeling of impatience will only grow stronger.

Acting like I know everything and being nonchalant about the situation would only irritate my wife; therefore, worrying anxiously is probably the best course of action...

But her absence makes the room feel empty and lonely...

And night falls. My wife still hasn't returned nor contacted me. As darkness deepens, my conviction that she's already in Maa-kun's arms grows stronger.

Over and over again, I reach for the phone receiver for ghost stories but pull back - vivid images of my wife's lewd behavior come flooding back into my mind.

What kind of embrace are they sharing right now in that apartment? What kind of expression is she showing towards her childhood friend?

Is she experiencing pleasure or joy? Maybe even revealing feelings which were hidden until now... Is she showing a face filled with love towards him?

In that one room where there was no need to worry about anything at all - not even time itself - could it be possible that my wife has unleashed her true self along with sexual pleasures?

And...is she using contraception? Perhaps instead, did she choose to accept his seed within her womb?

Thinking this way causes jealousy and anxiety beyond measure; however, these emotions give rise to an intense desire: "I want to see it! I want to see what they're doing!"

I want...to see how my wife is embracing him right now. What kind of expression does he show towards her? How does he look when he sees his beloved woman exposing herself in ways never seen before by anyone other than myself...

While burning with such dark desires, a voice calls out from outside the room:

"Excuse me~ Are you here?"

It's mother-in-law.

And... those breasts, they're bigger than my wife's.

They protrude from her petite frame and are impossible to miss...

I think you can understand where this is going.

Even though I know it's wrong,

I can't help but be conscious of the fact that my mother-in-law was embraced by a yokai as the previous shrine maiden for Tsumakari.

I imagine how this gentle mother-in-law would have been disturbed during Tsumakari, and how her small yet mature body would have been played with.

And every time, for some reason, my wife sensed it and pinched me...

It's really awkward to face my mother-in-law alone like this. I tend to look away.

But she doesn't care about my feelings at all. She leans in close as if peering into me and starts talking.

"...First of all, I want to say that we are on your side."

"Huh..."

"So... no matter what happens from now on, we won't abandon you. Is that okay?"

"..."

It was a lackluster response, but something warm gradually seeped into my heart.

I'm not alone in this other world. There are people who worry about me like this...

At the same time, I feel sorry for them too.

"I'm sorry... I'm not good at things like sneaking around..."

"Oh? That's alright. The role of Tsumakari's husband isn't just about sneaking around."

"But..."

"What matters most is our emotional connection. And even if it takes some time to get used to sneaking around as a couple, we'll support you through it all because we're family."

"That makes me feel better when you say that."

"Yes! You'll be fine because there will always be someone thinking of you - even that girl will come back home safely one day - so please welcome her back with kindness, even if she's been involved with another man."

With that, my mother-in-law bowed deeply.

My heart was already full of warmth. The anxieties and dark desires that had plagued me until now disappeared like a lie.

She called me family. That alone was enough for me - to have someone who worries about me so much...

So I replied wholeheartedly.

"Yes, of course!"

My response made my mother-in-law smile broadly.

"I knew you'd say that. Please take care of our daughter from now on too."

"Sure!"

"And... since you'll be lonely tonight, I'll keep you company instead of her."

"Huh?"

Still smiling like the sun, my mother-in-law said something outrageous...

"W-what do you mean? That's..."

"So tonight, I will replace our daughter and spend the night with you instead."

She repeated it calmly as if it were nothing.

"W-wait a minute! Even if you say that all of a sudden... First off, don't forget your husband is here!"

"It's okay. He agreed to this too. Don't worry about it and just enjoy my body as if I were your daughter."

With a laugh similar to her daughter's ringing out, my mother-in-law spoke.

Is that father-in-law in on it too?

I really don't know what he's thinking.

The good atmosphere we had until just now is ruined.

If I thought that Maa-kun had taken my wife away from me,

I never would have imagined ending up in the same position as him.

Is this karma coming back to bite me?

"Also...

I want to retire from my role as the shrine maiden and spend the nights with someone. It gets a little lonely, you know..."

As she said this, my mother-in-law leaned over and brought her large, round breasts closer to me. They gave off a sweet and dangerous scent...

"But isn't that your husband's job!?"

"Well... maybe because of his age or something, lately he hasn't been very interested in things like that... It's no good if I have to say it outright; you should be able to tell..."

My mother-in-law answered while blushing.

Can you believe it?! This situation is all kinds of messed up!

Having relations with my mother-in-law under these circumstances is bad news for both myself and my wife!

"Or do you not like an old lady like me after all?"

Thinking there was no way out of this, I opened my mouth but stopped short when she leaned into me. Desperately trying not to offend her, I pushed her away.

This is bad. If things continue like this, I might actually give in.

My mother-in-law was an attractive woman unlike any other. But now wasn't the time for such thoughts - I needed to figure out how best to handle this situation when suddenly -

the phone rang.

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Author: [Recently, I've been talking a lot about Maa-kun, but I also need to write about the ecchi with the youkai in my main job (?). However, it's troublesome to come up with settings for the youkai. Also, there are situations that I want to write about, but they would happen much later in the story and I'm struggling with that. Maybe I should shuffle the timeline and not worry too much if things don't match up perfectly? After all, it's a different world.

I look forward to hearing everyone's thoughts.]