Okumura Kouhei was the one who had completely, irrevocably changed her path.
Because of him, she had transformed into something entirely different... something she could have never imagined becoming on her own.
It wasn't some simple, superficial change like altering a hairstyle, or tweaking a quirk in her personality. No, it was a profound and almost unbelievable metamorphosis. The kind that ran so deep, even Hina herself found it difficult to believe that the girl she once was years ago, and the person she was now, could even be the same being.
That was how much Kouhei had changed her—so much that it felt like he had rewritten her very existence.
In the beginning, Hina hadn't even realized he existed. It wasn't merely because Kouhei lacked presence. It was because she had never bothered to look. She had never cared about the people around her, never spared them a second thought, and naturally, someone like Kouhei had simply faded into the background of her indifferent world.
Whether it was the hand of fate guiding them, or perhaps just a massive coincidence that spiraled uncontrollably like a chain of falling dominoes, she would never know—but somehow, they collided.
And it started with something that defied all her expectations.
Kouhei didn't cum from her touch.
At first, she had been completely bewildered. Every man she had brushed against before would lose control immediately. Even a slight touch, even an accidental graze—without fail, they would orgasm on the spot. Yet this man—this plain, forgettable man—remained unaffected.
Had she stumbled across a man who was broken inside? Was he so emotionally detached that even a kiss couldn't rattle him?
Maybe it was a fluke, she had thought. Maybe it hadn't counted.
So she touched him again.
And again... nothing. He didn't cum and there was no trembling. There was no pathetic collapse like any other.
It was then that something inside Hina snapped... like a thin wire pulled too tight, suddenly breaking.
She didn't know why, and she couldn't even explain it herself, but that day, she ended up having sex with him.
A succubus who had spent her entire life unable to bask in the warmth of another's body—cursed to make men climax before even touching them properly—had finally, miraculously, shared a bed with someone.
A succubus, ironically still a virgin despite everything she was, had finally lost her virginity.
And it was... exhilarating.
For the first time, she felt something real and something raw. It wasn't just sex. It was warmth. It was connection. It was a hunger finally being satisfied after years of deprivation.
And after that night, something within her had shifted irrevocably.
Her heart, once hollow and cold, slowly began to fill. Emotions she had never dared to believe she could feel began blooming inside her like wildflowers breaking through frozen ground.
Happiness. Pride. Worry. Even darker feelings, like jealousy.
She was experiencing all of it. Emotions so vivid and overwhelming they sometimes left her breathless.
She was becoming... normal. Perhaps you could call her human.
And she wasn't the only one.
The same thing was happening to the other members of the Yuuna Faction.
Kouhei's presence—his simple, honest existence—was changing them too.
Slowly but unmistakably, each of them began to shift. Yuuna, like Hina, started to experience emotions she had once thought foreign. Nagisa, Aria, Misuzu—all of them changed, each in their own way.
Even Kozue, who had harbored a burning resentment towards men, no longer seemed to loathe Kouhei.
His presence alone was reshaping them.
It was a miracle in itself. And it was terrifying.
Because now, Hina couldn't help but wonder—what would happen if Kouhei were to vanish from their lives?
What would happen to the Yuuna Faction?
What would happen... to her?
The sun was high overhead. It was lunchtime.
"Okumura," a classmate called out, walking toward him with a slight frown. "Someone's looking for you."
"Huh?" Kouhei blinked, confused by the sudden attention.
It wasn't just that someone was seeking him out that surprised him. It was the way his classmate had addressed him—as Okumura—instead of the usual mocking nickname, Otaku.
"I said, someone's looking for you. Don't make me repeat myself, dude," the classmate grumbled, clicking his tongue in irritation before turning away. "Just because he's getting a little famous now…"
Kouhei remained puzzled, but he stood up from his desk anyway and made his way toward the hallway.
The moment he stepped outside, his eyes landed on a first-year student, standing there nervously. She fidgeted, her hands clutching something against her chest, her whole body trembling ever so slightly.
He had never seen her before in his life.
"S-Senpai…" she stammered, her voice barely more than a whisper. Then, as if summoning all the courage she could muster, she squeezed her eyes shut, bent at a perfect ninety-degree angle, and thrust her hands forward—offering him a neatly folded letter.
"P-Please, take this...!" she cried out, her voice cracking with emotion.
Kouhei, stunned and unsure of what to do, awkwardly accepted the letter.
The very moment he took it, the girl squealed, her face burning crimson. She spun on her heel and dashed away like a startled rabbit, her friends cheering and clapping behind her in a chorus of excitement.
Kouhei could only stare dumbly at the letter in his hands, utterly at a loss.
The day finally drew to a close.
Dragging his tired body toward his locker, Kouhei bent down to swap his indoor shoes for his outdoor pair. But when he opened the locker door, he froze.
Inside were not one, but seven envelopes crammed between his shoes.
He stared at them, wide-eyed, unable to comprehend what exactly was happening.
"Oh? Looks like a love letter," a playful voice suddenly chimed from behind.
"Nagisa-san!?" Kouhei yelped, jolting in surprise, his body stiffening instinctively. His heart skipped a beat as he turned to see Nagisa standing there, her face lit up with amusement.
"Don't startle me like that..." Kouhei muttered. "And... what exactly do you mean by calling this a love letter?"
Nagisa only giggled, a mischievous glint sparkling in her eyes. "Well, after that amazing performance you pulled off during last week's basketball game, it seems like a lot of girls—especially the underclassmen—have finally started noticing you," she said, her voice dripping with teasing affection. With a sly smile, she lifted her hand and lightly traced one finger along Kouhei's cheek, the slow, deliberate motion sending a faint shiver down his spine. "Now, I'm feeling a little jealous myself... they've finally caught on to your greatness, Kou-kun."
"Greatness...?" Kouhei echoed dumbly, instinctively rubbing the spot where her finger had just caressed, his cheeks warming under her gaze.
"If you weren't great, Kou-kun," Nagisa purred, stepping a little closer, "you wouldn't have been able to reel in me, Hina, Yuuna, Aria, and Misuzu... and become our boyfriend."
Kouhei could only offer a strained, wry smile, scratching the back of his neck. Deep down, he didn't know if he could truly call himself great. Even if he was, the thought made him feel strangely awkward and undeserving, like he was wearing clothes that didn't quite fit.
"Aren't you going to read them, Kou-kun?" Nagisa asked with a tilt of her head, her tone light and curious.
"I'm planning to read them once I get back to the mansion," he replied, stuffing the letters carefully into his bag.
"Are you sure?" she teased, raising an eyebrow. "Hina might catch you. She's already been making these adorable jealous expressions lately... it's so cute, I can't help but want to tease her even more."
Kouhei could clearly picture it too... Hina's slightly puffed cheeks, her faintly narrowed eyes, the way she glanced sideways at him. It was still incredible to him. He vividly remembered the first time they spoke. Hina's blank face, her flat, empty voice devoid of any emotion.
And now, here she was... getting jealous.
"I think it'd be fun to see her pouting, don't you think, Kou-kun?" Nagisa added with a mischievous little laugh, flashing him a grin full of trouble.
"I'm not about to deliberately make her jealous just for your amusement, Nagisa-san," Kouhei said firmly, though there was a small, exasperated chuckle in his voice.
"You're so serious, Kou-kun..." Nagisa murmured, a soft blush coloring her cheeks as she gazed at him fondly. Then, her voice dropped to a whisper, almost shy. "Hey, Kou-kun... do you remember when we first had sex?"
Kouhei's head snapped toward her so fast it was almost ridiculous, his eyes wide with shock.
"Nagisa-san! Don't you think it's bad to say something like that in public? What if someone overheard you?" he hissed in a hurried whisper, glancing around nervously.
"Well," she said with a giggle, brushing her hair behind her ear, "it's not like anyone's around at this hour, right? Everyone's been eager to go home after such a long, tiring day. Right now, this place is practically deserted."
With a teasing hum, Nagisa stepped closer, looping her arms around Kouhei's waist. Her soft, warm body pressed firmly against his back, and Kouhei couldn't help but notice the feeling... the way her large, plush breasts molded against him through the thin layers of their clothing.
"Kou-kun..." she whispered again, her voice sultry as she tiptoed, leaning closer until her lips were just brushing against the shell of his ear. He could feel her warm breath tickling his skin, sending an involuntary shiver down his spine. "Do you want to do it again... in that same place?"