The Siblings' Scheme
"Is it over now, Arwen?"
Emilia, who had been held captive by Cordelia for nearly twenty minutes listening to an endless hymn of praise for breast milk, asked me in an awkward voice. Her face was begging me to rescue her—or more accurately, it was the face of someone utterly sick of the topic.
"Thanks for waiting, Emilia. Cordelia, you can let her go now."
"What's with that tone? It sounds like you're accusing me of tormenting Sister Emilia."
Cordelia's face flushed as she gave a prickly reply. Still, I paid it no mind and simply nodded at her.
"You were tormenting her. If you like breast milk that much, just say the word. I'll make sure milk sprays from your breasts whenever you want."
Instantly, Cordelia's faintly furrowed brow smoothed out. As if she'd expected exactly this, she clapped her hands cheerfully, her breasts bouncing, and cried out.
"Really? So it was your power that suddenly made Sophia's breasts go weird!"
She muttered to herself about wanting to feed her own breast milk to her brother as soon as possible, then abruptly grabbed Emilia's hand.
"Sister Emilia, let's make breast milk together. The two of us can feed brother at the same time."
"Th-that's..."
Emilia looked at Cordelia, who was clinging to her like sticky-sweet milk, and wore a distinctly troubled expression.
In the end, Cordelia's rampage—having turned her into something resembling a breast-milk worshipper after sucking on her own sister's chest—only ended once she extracted a promise from Emilia to produce milk together.
Watching Emilia reluctantly agree, Cordelia smiled with deep satisfaction. She showed zero interest in why her brother had acquired such a perverted ability in the first place.
By then Sophia, who had finally regained her senses, was staring at the pair with open curiosity.
"When did you two get so close? It's not like you knew each other before."
Cordelia turned toward Sophia, still holding Emilia's hand.
"You're awake, sister? It's been less than a week. I've learned so much from Sister Emilia."
"Really? Hmm..."
While Cordelia answered in a voice as refreshing as her smile, Sophia's own voice trailed off weakly. The moment "Sister Emilia" left Cordelia's lips, Sophia's slightly pursed mouth twitched. There was no way I would miss it.
Ever since possessing this game, my ability to read the room had improved naturally. Pure survival instinct.
I smoothly inserted myself into the sisters' conversation.
"While you, Sophia, were busy laughing and chatting with all the important people, you have no idea how many times these two have rolled around naked in the same bed."
"Arwen, what are you saying? That's embarrassing in front of your younger sisters..."
Emilia blushed and shook off Cordelia's hand. Cordelia, whose jiggling breasts showed no sign of being hidden, didn't look particularly hurt. She knew Emilia wasn't rejecting her out of genuine dislike. As expected, nothing bonds people faster than raw physical intimacy.
Paying no attention to Emilia's embarrassed reaction, I kept talking to Sophia.
"Why? Does it bother you that your sister looks close to another woman?"
"Th-that's not it at all."
Sophia, who had been looking straight into my eyes, shifted her gaze slightly to the right. Her voice was a little more flushed than before. Seeing her like that, I couldn't help but laugh.
"Don't worry too much. You'll get close to everyone soon enough, Sophia."
Once she mixed her body with theirs, they would naturally discover each other's hidden desires and grow intimate. And not just the women here—Raibel and Masha waiting for us back at the mansion would be part of it too.
But Sophia turned her head, muttering, "I told you it's really not like that." It must still feel awkward, this kind of relationship where everyone rubs against one man. I understood completely.
Having teased my younger sister—who had grown far cuter than her first impression—this far, it was time to return to the academy.
The clock showed the hour hand nearing the end of the closing ceremony. Less than two hours remained.
"Let's head back to the academy. Emilia and I might be fine, but you need to at least show your face at the closing ceremony, Sophia, or people will get suspicious."
She was the vice-president of the academy's student council and the two-time champion of the martial arts spar who had defeated her own brother. Whether present or absent, she drew attention.
Sophia checked the clock, bit her thumbnail once, and answered.
"I suppose you're right. People might already be looking for me."
To return to the academy, Sophia pulled clothes over her naked body. After roughly wiping her pussy—still slick with love juices and semen—with a towel and covering it with underwear, she grumbled.
"Haah, my whole body feels sticky. I never thought I'd miss the dormitory bathtub this much."
Her mouth was full of complaints, yet she was the first to finish changing. She never let anyone take first place, even in trivial things.
"Sister, are you already dressed?"
Sophia, who had been quietly watching Cordelia scramble to get dressed, suddenly turned toward me. In her usual calm, composed voice, she asked.
"What are you planning to do from now on?"
"What do you mean?"
"The matter of the family succession. You're not thinking of just going back to the mansion and politely asking for your position, are you?"
"Of course not."
"Hmm..."
To Sophia, who let out a seductive little hum as if she would listen to my thoughts, I played along and retraced my memories.
When Elysia Story wasn't an adult game, Arwen rose to the position of family head after defeating Sophia at the academy and returning to the mansion. From the surrounding NPCs' dialogue, the proper procedure seemed to be formally receiving the position from the acting head.
Of course, the acting head—Isabel—had never intended to hand it over.
But Isabel had been expelled from Reinhardt territory on suspicion of being Arwen's murder instructor even before the player left for the academy. Thanks to that, Arwen had been able to ascend without interference.
That was the story I originally knew.
With Isabel still remaining in the mansion, I now had two main choices.
Follow the original plot and remove Isabel from my path, or bring my stepmother into my harem just like I had with the two Reinhardt sisters here.
In truth, my choice had been decided the moment I first laid eyes on Isabel's breasts that looked ready to burst.
"No matter how wildly the Valery bastards run around, the timing of inheriting the head position ultimately depends on the acting head's decision."
"Y-yeah... The problem is that Mother hates you as much as the old me hated Brother Arwen. You know that, right?"
My dutiful younger sister—who still called me "brother" even after sex—answered with a face that said I was stating the obvious.
To that sour-looking Sophia, I casually revealed my thoughts about Isabel.
"Of course I know. In that case, it's much simpler. I just need to make Mother my ally, the same way I brought you two in."
"Brother, you don't mean..."
Sophia trailed off, seemingly grasping the implication.
It was simple. If I trained Isabel into a bitch who couldn't live without her stepson's cock, the obstacle would vanish and the head position would naturally become mine.
As expected, Sophia immediately voiced opposition.
"Masha won't allow anyone to even step on Mother's hem. If she finds out..."
"You don't have to worry about Masha."
Sophia tilted her head and asked what I meant. I told her the truth she had never known: that Masha had become my sex slave long ago and was diligently sending me information about Isabel as my spy.
Sophia's mouth fell open so wide a bug could have flown inside. It was the most intense emotional display I had ever seen from her.
"What?! M-Masha? That Masha who hated even the shadow of a man touching hers—is in that kind of relationship with you, brother?"
Her voice rose in shock as she shook her head vigorously.
"No way... How?"
"I worked hard to teach her exactly how delicious a man's cock is. I borrowed the power of an aphrodisiac, just a little."
"Ha, I can't believe this is the brother I knew. Are you sure you haven't been swapped with someone else?"
Sophia's sharp remark made the heart of Byeon Tae-sung—the pervert inside Arwen—flutter slightly. The faint smile on her lips told me it was a joke, but I still felt a nervous chill.
I cleared my throat lightly and quickly changed the subject.
"Anyway, there's no need to worry about Masha. She's already sworn loyalty to me."
"Even if that's true for Masha, is it really necessary to go as far as violating Mother?"
To the still-hesitant Sophia, I stated my plan once more in a firm voice.
"I will train Mother—Isabel. I've already made up my mind. And training her will be the first step in raising the Reinhardt family."
"Haah, you certainly talk a good game."
Sophia sighed and shook her head. At that moment, Cordelia—who had finished changing—thrust her hand into the air like a grade-schooler giving a presentation and jumped in.
"I'm in favor! It would be nice if Mother became close with brother like Aunt Masha or Sister Sophia."
"Then we have two votes in favor. Emilia, what do you think?"
Emilia had been quietly watching the absurd scene of siblings calmly discussing the sexual training of their own mother. When I addressed her, she visibly flinched, shoulders jumping.
"M-me?"
"Yes. You're practically family to me now, so I want to hear your opinion."
After a moment of troubled hesitation, Emilia spoke with a more resolute expression than before.
"As I said before, I'm always on Arwen's side."
"Then we have three votes in favor. Sophia?"
Unable to resist the flow, Sophia eventually agreed with a reluctant face.
"Fine. Do as you wish, brother. But when you die and fall into hell, you fall alone."
"Really? I'd rather go to the depths of hell together with you, Sophia. Of course with Cordelia and Emilia too."
"... Please stop saying such cringy things."
With her face slightly red, Sophia roughly flung the door open and disappeared outside. Cordelia and Emilia followed, escaping the small room still thick with a fishy, lewd scent.
In this very room where the siblings had just shared affection, the decision was made to train Isabel into nothing more than a single female.
I was already eager to see what expression Isabel—currently sipping wine without the slightest idea—would make when she learned of the sneaky plan her own children had cooked up.
Imagining myself sitting at the office desk in the mansion, receiving lewd fellatio from Mother while handling official work, I left the room last of all.