"Onii-chan, can you help me about something?"

Several eyes narrowed as the tension in the theatre grew thicker once the showing begin to play again. Some unsavory idea began to pop inside their head as what the host said replayed inside their head.

Does the Hikigaya siblings have an incestuous relationship? That question slightly made them shiver and revulsed as the thought of two blood-related brother and sister indulging themeselves in forbidden bond.

Some of them definitely didn't gain a noseblood while thinking so. Definitely.

Upon second thought, I as the narrator personally thinks that Noth did a great job at turning this girls into a pervert.

Meanwhile, Komachi could only wait with dread and anticipation. The thought of her and her brother doing that kind of things turns her skin red and pale at the same time.

"Hm? What is it?" Looking away from the book on his hand, Hachiman glanced at the best little sister in the world (according him).

"Can we talk in your room?"

"Eh? Why not just in here? It was such a hassle to move away from this couch..."

"My Gomi-chan, I hope you can cooperate with me obediently at least this once. I don't want anyone to think about something weird, so can we go to somewhere private?"

Hachiman could only stare at his little sister, wondering what exactly is her intention but Komachi's face show little to no much that could give him any clue. In the end, he complied and followed her to her room with annoyed face.

Komachi could feel her heart pounding so loud she was afraid it would burst out of her chest. Out of instinct, she covered her face with her hands but she still left some gaps between her finger so that she could see what will happen.

"Onii-chan..."

For some reason, Hachiman felt the tension began to thicken, causing his body to stiffen and shift in weird anticipation. The serious expression on Komachi's face absolutely didn't help him in this situation.

"I want you..."

Without any explainable reason, Hachiman somehow felt saliva began to gathers in his mouth, forcing him to gulp the lump down to his throat. His heart beat rate was slowly rising as seconds passed.

"To do something like this."

–!

Everyone had to lean forward in interest, wondering just what exactly Komachi's counterpart currently showed to Hachiman. As the camera peered at a better angle they finally could see it clearly.

It was a shoujo manga with the part where male lead was pinning down the main character was being shown. Instantly, Hachiman's face fell into deadpan expression as he stared unimpressedly at his sister.

"Bah!"

Shouts and groans echoed inside the room while Komachi was the only one who breathed out a sigh of relief. It definitely worth questioning why were they sounded so disappointed rather than glad like Komachi.

Perhaps they had truly become a pervert? Or already one from the very beginning?

"Really?"

"It's a phase, Onii-chan! And I'm just curious about something! This is purely for scientific reason!" With a frown and a slight tint of pink on her cheek, Komachi shouted back at his brother.

Hachiman could only sigh in exasperation. Apparently his 'productive time' was ruined by a shoujo manga. What else next? He got to act like a riajuu bishounen to a girl? Over his dead body!

"I want you to try doing something like this character did, Onii-chan."

Talk about his luck.

"Please..."

Komachi used [Puppy Stares],

It's effective!

"Gah, fine! What exactly you want me to do? Cosplaying this guy?"

Hachiman might be an optimist idiot with chuunibyou syndrome before, but he was a chuuni who can do cosplay, or at least he like to believe he can.

"Ohh! Cosplay!" Hina being the most cultured in romance genre among them, cheered while clapping her hands together.

"Hachiman cosplaying huh? His body is too scrawny for any character he fitted so much... Shame..." The teacher of culture in regards of Shounen genre, Hiratsuka-sensei muttered under her breath, "Though, I guess he will become fit enough once he meet my dad. There's no way he could let the boy run away from exercise." And she began to laugh maliciously, causing even the so-called demoness, Haruno, to scoot away.

"Nah! No need to, Onii-chan. You're here not to cosplay, but just to act like these guys."

"But... why?"

"Is it wrong that your sister is just being curious?"

Komachi used [Deadpan Stare],

It's effective!

"And I'm doing this to help you, y'know!" Eyebrows were cocked in questioning way at Komachi's statement.

"Helping me at what?"

"Well, I know that no matter what I do, I will never change your mind about being a house husband in the future. And if you does manage to find someone who is willing to do that..."

"Is that an insult?" Unfortunately for Hachiman, the question was ignored.

"...Then there's no way my Onii-chan who was very soft deep inside could stomach the thought that he will be a parasite to his wife, doing nothing other than lazing around the house. What if you can't carry the guilt anymore and do suicide?"

"Oi, that was too extreme!"

"Oi, that was too extreme!" Although it's quite true if he could be honest with himself. Hachiman will feel like a shit if that actually happen.

Which is why he wasn't really worried either since the chance he can got married is most likely abysmal.

"Man, listening to Hikio is really depressing huh." Even Yumiko who disliked the idea that she could have been dating Hachiman was feeling sad about the teen's self-deprecating nature.

"It is. That's why I want to help him as much as I can." Yukino added. Surprisingly, the blonde didn't give back any remark or comment toward the ravenette.

"Still, it's better than sorry, Onii-chan." Komachi chided, "Even if you're so rotten I have no hope in you..."

"Hey!"

"...I know that you won't let your girlfriend or wife not happy, y'know. You're my gomi-chan after all." A genuine smile was plastered on Komachi face as she looked intently at her brother.

The sudden emotional turn has caught Hachiman completely off guard and he doesn't know how to react at that. And deep down, Hachiman knows that what Komachi said was completely true.

He doesn't want to make whoever person who is stupid enough to marry him be unhappy or something like that. But his insecurity and distrust has built a strong mental wall around his heart that it would be too hard for anyone to break it and steal his heart away.

He doesn't want to be given another false hope, after all.

After hearing the explanation about why Hachiman was being like that, every girls, including Yumiko, began to ponder and process the information in their mind.

Now that explain why he could be so pessimistic as an individual. It's simply because he has no confidence in himself and has no hope in his own future. It definitely morbid as fuck considering that he could have a heartless drone, wihout any intention nor direction about where to go, simply following the flow of life until he died.

"I... We should like, help him..." Surprisingly, Yumiko was the one who proposed that.

She may not have figured it, but her feeling to the boy was slowly growing in her heart, shbtly stays in there until it was too late for her to erase that emotion from her mind.

"Yes, we indeed. But how?"

"Hachiman was really insecure about himself to the point where he won't consider someone's feelings for him to be genuine if he changed at the sliggest bit. That was just how probelmatic he was." Hiratsuka-sensei joined, giving her opinion about her favorite student while frowning in thought.

"L-let see how this version of me handle it then." Komachi proposed, and everyone quickly agreed to it.

But in order to make them happy, he need to change. There's no way anyone could love someone like him.

And if he did change, if it will be genuine?

"What I want you to do is nothing drastic like acting as a badboy or prince in shining armor, Onii-chan." Komachi suddenly flicked his forehead, "I just want you to try to learn something small like cooking, brewing tea or coffee, massage and... you know, something small that could help then relax. Even being much more cleaner and dress nicer was good enough."

"T-that... That was actually not a bad idea..."

That was actually not a bad idea... Yeah, that really wasn't a bad idea.

"A-and also," All of sudden, red blush appeared across Komachi's cheek, "I-I heard that doing t-that could help someone relax, so... I think you could also learn a thing or two about that."

"What do you mean by that?"

"Ughh... You know... "t-that"" Apparently, the air connotation wasn't enough to make him understand.

"O-ohhh, that huh?"

The implications didn't flew over their head, unlike Hachiman's case, and caused all of them to basically blush in embarrassment. komachi took the most hardest among them considering her counterpart was currently talking about it directly at her oblivious brother.

God bless his rotten soul.

Letting out a groan while grinacing, Komachi nervously looked away before bringing his hands up. She then make an "Ok" hand gesture before inserting the index finger of-

Oh.

O-oh.

"O-oi! W-why the hell are you even thinking about that!?" She was still a child, for god's sake!

"W-well, some of my friend usually talked about that, a-and... Y'know... They say a good t-that can help people relax." Komachi ended with a nervous chuckle, the unamused look Hachiman gave did more than enough to told her he was not impressed.

"Kid nowadays..." He groaned into his hands.

"Yeah... Kid nowadays..." Hiratsuka-sensei groaned too as a can of cold beer appeared on her hand, "They don't have the power to hold their sacred purity until they married, unlike me."

"Shizuka-chan, you technically wasn't yet married to him. And you already did it since you came to your room before."

"S-silence! I just have a romantic bonding with my husband. Nothing more, nothing less." Hiratsuka retorted back with a slight tint on her cheek.

Considering that she did drink a beer just by now, it was hard to determine whether that red came from the alcohol or shame. Perhaps both?

"So, what do I do now?"

"O-oh, ahem..." Komachi cleared her throat, "Before we start, I want to make it clear that this test was literally a plan to make you "An Ideal Househusband." since I don't want to lie about anything."

"Yeah, yeah. I understand, geez. I will dedicate myself for my little sister and to honor her hardwork."

"Not just me, Onii-chan, but your future wife too! Remember that!"

"Fine..." He then began to mutter under his breath, "Who exactly would want to marry me anyway..."

"Oh, trust me Onii-chan. You're literally living a life of harem protagonist. Really, my Gomi-chan is hopelessly dense..." Komachi thought to herself as they began to move onto her little project.

"Plan, Turning My Brother into a proper Househusband. Start!"

So that is how her other self handle their Onii-chan, huh.

Komachi sighed in relief as she found a way to make her brother's life not become much more miserable than it already is. Heck, this plan might as well give him his confidence back, y'know!

"First thing first, we start with cooking." Komachi started, pacing back and forth with straight, disciplined posture as if she was currently doing a briefings to soldiers. "Your cooking was honestly not bad, Onii-chan. Good even if you put a lot more effort. The only problem we have here is that..."

She suddenly slammed her fist down to a table, "You can only cook a goddamn curry rice and nothing else!"

"Hah!" Saki suddenly shiuted, causing some other ot jump in surprise. She quickly realized what she has done, and exploded into a blushing mess in an instance.

It was still satisfying to see someone other than her that could only cook a single dish. It feels like she won't be the only one who got ridiculed.

"Oi! Just so you know, I can actually cook something others than curry, y'know!"

"Instant ramen will never count as a cooking, Onii-chan!"

"Geh!"

"Now move, slave!" "Yes, master."

The monotone replies draw a few chuckle out of them as the screen began to show the sped up version of their cooking compilation. From the number being shown at the corner of the screen, it seems like a few weeks have passed ever since the first time the two siblings has their discussion about the househusband thing.

Smile grew on their face as they watched Hachiman slowly enjoyed cooking and growing quite a skill in it. Mostly on household level, but his dish still looks tasty considering that they felt their mouth beagn to water upon seeing some of his latest dish.

Then the screen began to shows the part where Hachiman received his proper training as tea brewings and house level, amateur barista. They could see how the boy began to look livelier each time the number that signifies the day grew bigger.

Then the screen changed to that of him reading a book on massage, human anatomy, and some... raunchier subject, causing some to blush in embarrassment at how calm he look when he basically read about how to please woman in bed.

They even could see him taking some exercise to keep himself fit (of course he choose to do everything in his house rather than at a park or gym) or him picking a cute hobby like gardening.

It was amazing hiw he could change so much by his own choice. Him, Hikigaya Hachiman, the man whi swore will never change was slowly changing to a better person in taking care of himself and his family.

And Komachi barely did any manipulative action to him. The first time, maybe, but it was a harmless suggestions to take a good care of himself so that he won't suffer anymore. Apparently the effect was much more greater as Hachiman grows into a much charming perosn just by doing some mundane habit or picking up a few skill to make his future wife happy.

"Onii-chan~..." Komachi called lazily from the couch.

"Hm?" Hachiman responded as he switched from one channel to another in TV while busy petting Kamakura on his laps.

Even his choice of fashion changed a little in the times he had spent learning some skill or something. He now wore a much more comfier clothes that still looks pleasing to eyes unlike his past T-shirt and short combination.

A V-neck rolled up sleeves white sweatshirt, showing his hardwork in exercising routinely in the form of thicker neck, forearm and shoulder. Combined with his black pants, it surprisingly looked good on him. Perhaps it was also because he was not really slouching anymore?

"What do you think of this? I think he resembled you in some sense."

It was a manga panel where the male lead kabedon'd the girl MC.

From what he remember after reading it (AN: CMIIW, but I remember that in the novel, there was one part which showed that he didn't only read light novel with disguise cover, but also shoujo too. I'm not sure whether that's true or not, but I like to add in here, lol), Hachiman happens to remember that the character was the sort that looks like he was a good and harmless student.

But behind that tame appearance, he was actually the most dangerous, fuguratively of course, for the MC due to his unexpected action and rather aggressive true nature.

In simple term, he was a sadist who enjoyed to surprise people.

That line made anyone tense in their seat. Is this the rewson why Hachiman acted so domineering and devilish at his partner despite being so docile at the outside.

"Where the hell did you get that kind of conclusion?"

"The tendecies to surprise people, not so much. I know you actually don't like hat surprise."

"Of course yeah, I don6like it when I can't prepare anything against it. Who knows what kind surprise or prank people could pull me in? It could be something dangerous like bomb, y'know."

"Never change, Onii-chan. Never change." Komachi muttered under her breath, feeling somewhat glad that her beloved Gomi-chan acted all the same like before.

"Hush. Let me finish it first before you start ranting about modern society or some industrial things." Komachi waved her hand, "I want you to try kabedon-ing me like him to the Main Character."

"Excuse me?"

In an instance, almost everyone began to enter hyperfocus state and lean forward as if they just entered their serious mode. Meanwhile, the girl in spotlight, Komachi, could only tensed up on her seat as her scandalous thought began to flash in her mind, causing her heart to race in her chest.

Hachiman's mind briefly halted at the strange request. He even tried to pick his ears to make sure that he wasn't deaf or just hallucinating. Looking at his siter and then pinching his own cheek, Hachiman grimly concluded that this is not just a bad dream but the depressing reality.

"Why?" Hachiman squeaked out.

"Well, I just want to test something and see if my suspicion was right. For some reason, I feel like this guy was pretty similar with you."

Hachiman could only sigh as his sister, yet once again, proposed such a ridiculous idea to him. Seeing that expectant and eager smile on her face, it felt like refusing her request would cost him life.

That is if he didn't kill himself first.

Heaving out another sigh, Hachiman bring himself closer to Komachi and put his hand beside her head. And just as he had expected, there's no other reaction other than deadpan stare.

"That was anticlimactic."

Komachi breathe out a sigh of relief at how the situation has de-escalated rather easily.

"Put your soul in feeling into it, Onii-chan! Your wife won't be satisfied if you not manly enough!"

"I'm planning to become a househusband, Komachi. How the hell you could put manliness in it?"

"You're too naive Onii-chan. There's no rule where househusband can't be badass too y'know." Komachi shook her head in disappointment, "Please Onii-chan, this is the last time I ask you to do anything like this. I will even buy you a pack of Max coffee!"

"Wait, why are you still pushing it!?" Komachi shouted at her counterpart in frustration.

Unfortunately for Komachi, Hachiman remained unwavered by such bribe and stood on his ground, figuratively. Seeing this, she squinted her eyes and adorned a cruel smirk not long after. She then began to slowly move toward her phone.

"I have no choice then, I hope would like to see those photo collection and that embarrassing video-"

All of sudden, it feels like the world was spun upside down for Komachi. It took a few seconds for her to realize that his brother was currently pinning her down with his towering figure while staring intently at her eyes.

Several perverted giggles echoed in the room as they watched Hachiman taking over the steer in the screen. Komachi was obviously rendered into a blushing mess who could only mutters "Awawawa..." like a broken radio.

"Fine, I will what you want. I will even do anything for you as long as you erase that recordings." He gently place his hand on her cheek, "Is this not enough?" He put his knee between her inner thighs which was dangerously close to her nether area, "Is this not enough?" He lifted her face by her chin while closing their distance until their face nearly touched.

"Is this not enough?"

Incomprehensible murmurs escaped Komachi's hung open mouth as she stared wide-eyed at her brother. As realization began to settle in, red slowly spread across her face and heart pounded loudly in her chest.

The time around them stilled, and the only thing they could sense is no other than each other's appearance and the sound of their breath. Mind blank and hazy, Komachi feels like she was drowning into the deep sea as she stared at those dark eyes of her brother.

It was hypnotizing. It was mesmerizing. It feels like she can't get enough.

Driven by some primal instinct and a devious voice in her head, Komachi tentatively reached for Hachiman's cheeks and moved her head closer until their lips almost touched.

Would she really kiss her brother? Would she really give her first kiss to her brother? Komachi doesn't know how to answer that question. But at this moment, she doesn't care. She just wanted to kiss that lips of his. To drown in those surprisingly beautiful pool of black eyes. To feel his body and share this heat in her to him.

Some part in her mind was screaming at her to stop, but she was already so close it was too late to hit the break and they funally-

"Machi, where did you put-"

""Bah!""

Everyone shouted in frustration as the kiss was interrupted befor eit even start just like how rom-com usually went. A big sigh of relief escaped Komachi's hands as she slumped down like a jelly on her seat, panting heavily with sweat drenching her forehead.

Komachi and Hachiman stopped dead track on their track and quickly swiveled their head toward the interruption. There, under the doorframe of the living room, stood a faily shorter than average woman with eyeglasses in front of her slightly widened eyes.

Their breath hitched in their throat as they realized what they about to do and currently stumbling away from the compromising position. Their chest pounded loudly in their chest as panic and fear crept inside their minds.

What kind of disgusted face their mother will give to them? How will she reacted? What will happen to them?

"You guys have found out that you're not blood-related, huh?"

"What?" Komachi squeaked.

"O-oh! Ohhhh!"

"Ah, the classic not blood-related twist..."

The nonchalant question threw the both of them through several loops. Their mind, which were already quite in disarray, are in complete chaos by now.

"I mean you two are dating so there's no way you don't know about that, right?" Mrs. Hikigaya explained, glancing between them back and forth, "Anyway, I just want to get my drink. Feel free to continue but remember to use protection, kay."

With that, she disappeared, leaving the two siblings in catatonic state.

Komachi was faring no better than her counterpart and Hachiman in the theatre. She was so shocked and confused, her eyes literally swirling comically while some of the girls patted her back.

"M-me...? A-a-and O-onii-chan...?"

"I guess we all will have our turn then..." Hiratsuka-sensei muttered while shaking her head in amusement.

'So it's finally my turn, huh?' Hina thought to herself as the screen began to play again.

-oOo-

Well, I guess that is the wrap. Apologize if this chapter was not good enough but I ran out of idea baout what I'm gonna do with Koamchi. Also, apologize again for several mistype since I was writing this in my phone.

I feels like there's a lot in here.

Next chapter, we will bring the other cast into the theatre and then the behind the scene smut following behind.

Hope you guys a good day, cheers!