The Demon King Who Was Supposed to Lose Ended Up Defeating the Targets, and Now the Heroine Has Been Sent as a Sacrifice - Chapter 16

Chapter 16: The Demon King Supposed to Lose, Messes Up Again

“Wake up, brother. It’s morning already.”

“…Huh? Oh, good morning, Misha.”

Misha shook me awake, and I opened my eyes.

As the Demon King, I didn’t need sleep, but my human senses craved it.

Suddenly, I was struck by a thought.

“Why did you call me brother?”

“That’s because you’re my brother. My most beloved person.”

“…You know my name?”

“Of course. How could I forget the name of my dear brother, Diablo?”

Confused, I nodded, even though the situation made no sense to me.

“It’s happening much earlier than expected, just as Elsia said…”

“?”

Elsia knew Misha very well.

She was once the sister of a handsome target in the game “The Saintess and the Five Heroes,” with whom I had a good rapport.

Moreover, as a typical villainess, Misha once plotted Elsia’s assassination. That plan was exposed and thwarted by the targets.

That incident allowed Elsia to understand Misha’s personality and thoughts precisely.

According to Elsia,

“Misha tends to twist inconvenient truths in her mind. If she ever had a relationship with Lord Diablo and felt she betrayed her beloved brother, she would likely alter and seal her memories to suit her narrative.”

As a result, it seemed that in Misha’s mind, I had become her beloved brother all along. Elsia’s prediction was spot on.

What should I do? Now I have a sister.

Elsia intended to present Misha, who recognized me as her brother, in front of her real brother.

Seeing his adoring sister recognize the Demon King as her brother and move her hips would surely be an unbearable pain.

From my past life, where I occasionally enjoyed NTR-themed adult manga, this situation felt intense.

Especially stories where sisters, younger sisters, or childhood friends who admired you get taken away while you’re off guard—they leave deep emotional scars.

I even had a friend whose preferences got twisted by NTR-themed adult manga.

Well, to be fair, having Elsia in my arms might already count as NTR for the targets, but it seemed Misha was being dragged into this to further the blow.

Additionally, Elsia’s plan was to later confront Misha with the reality that she had betrayed her brother, to further wound her emotionally.

My wife is scary.

I never thought I’d be playing this role…

“Brother? What’s wrong?”

“…It’s nothing. Don’t worry about it.”

“Okay. If you say so, brother.”

Darn, I’m too easy!

To think I found a girl cute just because she called me “brother” after we spent one night together.

But this girl once plotted Elsia’s assassination.

I need to stay cautious.

…Well, Elsia didn’t seem too bothered by it.

I can’t tell if Elsia is just broad-minded or fearless.

“Brother, where are you going?”

“I’m going to see Elsia for a bit.”

“…Elsia? I don’t really get it, but that name sounds familiar…”

“Hmm, I see.”

It seemed Misha had lost her memory of Elsia.

Or maybe she was unconsciously blocking it.

Either way, it’s convenient that she forgot about Elsia.

“…Brother, what’s your relationship with this Elsia?”

“Hmm? Elsia is my wife.”

When I said that, something dark appeared in Misha’s beautiful blue eyes.

Oh, maybe I should have lied.

…No, with all the massacres Elsia’s carried out, she’s become quite powerful.

Misha wouldn’t stand a chance against her, so it shouldn’t be a problem.

But, it’s not good to leave a spark that could ignite trouble.

I gently ran my hand over Misha’s modest yet noticeable chest.

“Hyan ♡ B-Brother?”

“Don’t worry. I’m keeping an eye on you too.”

“Brother…♡”

Misha likely developed her yandere traits because her brother never paid attention to her.

It’s rare for siblings to have romantic feelings for each other.

Even though Misha genuinely adored her brother, he had no such feelings for her. In fact, he probably found her bothersome because he liked Elsia.

But I’m different from Misha’s brother.

I’m not related to Misha by blood, and I see the girl in front of me as a woman.

In other words…

“Ahn ♡ Brother ♡ So rough ♡”

I can calm Misha down before she gets jealous of Elsia.

And this time, it’s with Elsia’s approval!

As a breast enthusiast, I was worried if Misha’s modest chest would satisfy me compared to Elsia or Mana…

But I realized that it’s not just about size.

Being wholeheartedly attended to by Misha’s modest chest was honestly the best.

“Alright, I’m heading out.”

“Y-Yes ♡ Have a good day, brother ♡”

I left Misha’s room and headed towards Elsia.

However, I was informed that Elsia had gone to an emergency meeting with her military advisors.

It seemed we just missed each other.

As someone appointed as the commander of Elsia’s personal guard, I thought I should join the meeting. But according to Elsia’s adjutant, the loli succubus Maron,

“My Lord—cough. I mean, Lord Adelo, milady wants you to prioritize your special mission.”

Elsia’s special mission likely referred to brainwashing Misha.

Unfortunately, that was already completed.

“What should I do now? I’m bored.”

Maybe I should visit Mana’s clinic and have some fun with her.

No, it wouldn’t be good to interrupt her work.

Elsia would want to discuss future plans with her advisors… Plus, after being with Misha, I felt like cuddling with someone with a bigger chest.

As I was pondering this,

“Hey, newbie!”

A familiar voice called out.

I turned around to see Ryukshu, who was supposed to be in the city of Avan, standing there.

Still as big as ever.

“Ryukshu? What are you doing here?”

“I had an urgent report for Lady Elsia. I’ve delivered it, so I’ll be heading back the day after tomorrow. But since I have some time, let’s grab a drink!”

“…Sounds good. I was just bored.”

“Oh, are you off-duty too? That’s perfect!”

I wondered what she would have done if I wasn’t off-duty. As I was thinking this, Ryukshu suddenly seemed to realize something.

“Maybe I should stop calling you ‘newbie.'”

“Yeah, since I’m the commander of the personal guard now, I guess I’m your superior.”

“True. So, should I call you Sir Adelo?”

“I’m joking. Just call me Adelo.”

“Hehe, got it, Adelo.”

With that casual banter, we headed to the tavern inside the Demon King’s castle.

By the way, the Demon King’s castle is integrated with the city.

The lower level of the castle is where the general demon populace lives, filled with houses and shops. 

The middle level houses demons with considerable influence, and the upper level is where those close to the Demon King, meaning me, reside.

This time, Ryukshu and I headed to the lower level.

We went to a tavern reputed to be particularly cheap and delicious.

We entered the tavern and ordered some drinks.

“”Cheers!!””

We downed the contents of our mugs in one go. It was smooth and delicious.

It tasted a lot like beer from my previous life.

“Still, it’s surprising that a newbie like you became the commander of the personal guard so quickly. Did you do something to get on their good side?”

“Oh, well, you know the prisoner I captured? Turns out they had a history with the Queen. It was just a coincidence.”

“Wow. You must have some good karma.”

That comment was hard to respond to.

Considering I had slept with my wife’s mother in a drunken stupor and brainwashed a young girl at my wife’s request, my actions didn’t exactly scream “good karma.”

But thinking about it too much would be pointless.

Then I noticed something and brought it up to Ryukshu.

“You’re wearing clothes.”

“Took you long enough to notice!”

Right after evolving at Avan Castle, Ryukshu’s shoulders, belly button, groin, and chest were all exposed.

But today, she was at least covering her chest with a sarashi and wearing a loincloth.

Her exposure was minimal.

“Yeah, I found out later that it’s not okay to be naked in my current form. I hate clothes because they’re a hassle, but the adjutant got mad at me.”

“I see.”

It’s really a shame I can’t see Ryukshu’s ample chest in the open anymore.

Thinking about such things, we kept drinking until morning came.

I woke up in bed, shocked.

“Mm ♡ Uhehe…”

“…I messed up.”

When I woke up, Ryukshu was lying next to me, completely naked, drooling in her sleep.

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Afterword: Just a little side story

Author: “I, the author, enjoy scenarios where close friends cross the line and things get awkward, but over time, they become more comfortable with each other.”

If you thought “Yandere sisters are wonderful,” “He’s done it again…” or “I totally get the author’s note,” please leave a comment, bookmark, rate, or review!