In a VIP private room, five beautiful, voluptuous adult quintuplets gathered. They were the Nakano sisters—or at least, they used to be, as two of them had changed their surnames to Uesugi and Rokuhara.
"Yare yare~ We're still in our twenties, yet we already have a niece. I feel so old." Ichika joked lightly, her eyes fixed on the tiny baby nursing at Itsuki's breast.
"Ugh, don't say that, Ichika. Seriously, I'm still single, and now I'm an aunt." Nino complained, pouting and crossing her arms. She wasn't particularly fond of being called "aunt" at such a young age.
"She's so cute! Has she been named yet?" Miku asked, her eyes sparkling as she gazed at her new niece.
Her feelings were mixed—happy to see the adorable baby, but also saddened because the father was the man she secretly liked.
"Not yet. Hubby and I agreed that if the baby were a boy, I'd name her, and if a girl, he'd choose the name." Itsuki replied softly, looking lovingly at her nursing daughter.
"Hey, Itsuki, what was childbirth like? Was it painful?" Yotsuba asked, gently rubbing her own pregnant belly.
The father of the child in her womb wasn't her husband, Fuutarou—but her brother-in-law, Itsuki's husband—a fact she was desperately keeping secret.
"Painful. Extremely painful." Itsuki answered honestly, her eyes distant as she recalled the experience. "It felt like every bone in your body was being crushed one by one, and your muscles were being stretched until they tore. Like a fleet of trucks were crashing into you from the inside and outside at the same time—over and over, without end."
"Hisss...!!!"
All four sisters inhaled sharply in unison, their faces paling at Itsuki's description. Nino even unconsciously gripped her own arm.
"If giving birth to just one baby hurts that much, I can't imagine how much pain our mother endured giving birth to all five of us. Especially with that man running away from responsibility, leaving her to deliver us all alone!"
The memory of their irresponsible biological father made Nino grit her teeth.
"It's all in the past. Let's not talk about that man again. He's not worth it." Ichika said, trying to steer the conversation elsewhere.
She leaned forward and gently poked the cheek of the baby, now finished nursing and wrapped in a blanket.
"Oh my~ So soft~ It's like a marshmallow~ Let Auntie give you a little kiss~"
"Stop it, Ichika! You're not allowed to kiss my baby!" Itsuki quickly blocked Ichika's approaching face with her free hand.
"Ehh~~~ Why not? You're so stingy, Itsuki." Ichika protested, pretending to sulk.
"It's just a kiss. You're overreacting, aren't you, Itsuki?" Nino frowned, thinking her sister was being overly protective.
"You don't understand." Itsuki explained patiently, her voice authoritative, like when she taught class. "A newborn's immune system is still extremely weak—they're highly vulnerable to bacteria and viruses. Did you know there are countless bacteria in an adult's mouth, even in perfectly healthy people? That's why you shouldn't kiss babies, especially on the face and hands, for the baby's own health."
"Wow, I didn't know that? Just as expected from a high school teacher!" Yotsuba exclaimed, impressed by Itsuki's knowledge.
"I see. Sorry, I misunderstood." Nino admitted.
"Itsuki is an amazing mother." Miku praised with admiration.
"Phew~ Thank goodness Itsuki stopped me." Ichika patted her ample chest in relief. "Imagine if I accidentally made Ren-kun's baby sick—I'd feel guilty for the rest of my life."
Her words were sincere, though deep inside, her feelings for Ren were far more complicated than mere concern for a niece.
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"Why hasn't Rokuhara arrived yet? It's been an hour! How long does he plan to keep us waiting?! Leaving Itsuki all alone right after giving birth...!!!" Nino grumbled angrily. "What a irresponsible bastard! Just like that man from back then!"
She compared Ren to their biological father, who had abandoned their mother, Rena, when he found out she was pregnant with quintuplets.
"Don't be so impatient, Nino. Hubby isn't an ordinary man. Unlike other men who finish in minutes, he's... different. And besides, I'm not alone. Aren't all of you here with me?"
In her heart, Itsuki knew Ren was most likely having sex with Ririka right now. But she felt no jealousy. Instead, she simply accepted it. She was fully aware that no matter how hard she tried, she would never be enough to satisfy the monstrous libido Ren possessed.
"You... Haiz..." Nino sighed deeply, staring at Itsuki as if she had lost her mind. "You two aren't even officially married, yet you're defending him so fiercely. You've really changed, Itsuki. Do all women become like this when they fall in love?"
"I don't want to hear that from you, Nino. Back in high school, when you liked Uesugi-kun, your change was even more extreme than mine now."
"..."
Itsuki's words struck like a perfectly aimed arrow. Nino fell silent, her face turning red. She couldn't deny it. Those embarrassing memories were still vivid.
"Are you okay with Ren practicing polygamy?" Miku suddenly asked, her voice serious and curious. Her eyes locked onto Itsuki.
Hearing the question, Ichika silently praised Miku in her heart. It was exactly what she wanted to ask but didn't dare.
Yotsuba, the winner of the high school civil war who had become Fuutarou's wife, leaned in closer, eager to hear the answer.
Meanwhile, Nino, whose feelings toward Ren were lukewarm at best—leaning more toward negative.
"What woman would willingly share the same man with other women?" Itsuki gave a normal answer.
"Then—"
Before Nino could continue, Itsuki cut her off.
"But love is blind. I love Rokuhara Ren, and I know my love for him blinds me. I know he has flaws. I know he's a scumbag, and I know he's unfaithful.
Pausing, Itsuki looked at her sisters.
"I know I alone will never be able to satisfy all his desires. If I don't, he'll find other women. I can't bind him."
"That's why I've chosen to share. If I can't have him completely, at least I can be one of the women he loves. Love isn't about possession—it's about accepting each other's flaws and strengths. I accept his flaws, and I believe he accepts mine. I don't care what others think of us. For me, as long as I'm happy with him, that's enough."
"Itsuki...!" Nino was stunned by her honesty.
"Phew~ The conversation suddenly turned into something lewd."
Ichika tried to lighten the mood with an awkward laugh, twirling a strand of hair around her finger.
Herself, Nino, and Miku—they were all still virgins. Open discussions about marital relationships and sexual stamina like this made them, as complete beginners, deeply embarrassed and uncomfortable.
Only Yotsuba silently nodded, her face showing no trace of shame. As someone who had personally experienced that "monster." she knew Itsuki wasn't exaggerating at all.