"Natsuha-nee, are you going out this weekend?"
Yamano Eitai was calling his childhood friend, Shinomiya Natsuha, hoping to invite her out to hang out over the weekend. Since they didn't attend the same school and couldn't go to school together, they had very little time to spend together on weekdays.
Yamano Eitai wanted to cherish the weekend, hoping to spend more time with his childhood friend and deepen their bond.
However, what Yamano Eitai didn't expect was to be rejected.
"Going out?" On the phone, Shinomiya Natsuha's voice sounded a little strange. "Sorry, Eitai-kun, I might not have time…"
What's going on? Natsuha-nee rejected me?
She had never rejected him before, but now she actually turned him down. This made Yamano Eitai instantly anxious and uneasy.
Deep in his heart, a trace of fear and unease began to grow.
"Natsuha-nee, do you have something going on?"
"I… ugh… I have to study this weekend, so I don't have time… mm…"
Shinomiya Natsuha's voice became increasingly strange, almost as if she was panting.
"Natsuha-nee? What's wrong? Your voice sounds weird."
"It's nothing, I'm fine. Don't worry, Eitai-kun."
"Then… can I come over and study with you?"
"Let's not, Eitai-kun. I want to read quietly by myself."
Shinomiya Natsuha knew she was acting strangely, but in the end, she still rejected her childhood friend's request. Lying on her bed in her room, she was dressed lightly, lazily sprawled out while hugging Kazuma's clothes that she had secretly taken earlier.
The strange sound Yamano Eitai heard during the call was naturally Shinomiya Natsuha's involuntary gasp.
So this is what you meant by "reading quietly," huh?!
After hanging up, her phone slipped from her hand and fell beside the pillow. Shinomiya Natsuha's eyes were hazy. She had never rejected Eitai-kun so firmly before.
She was changing.
She was fully aware of it and had tried to restrain herself, but she simply couldn't.
"I'm sorry, Eitai-kun… I… I'm going to become a bad woman…"
This pure and gentle girl, filled with guilt toward her childhood friend and fantasies about Kazuma, soon immersed herself in that uncontrollable pleasure once again.
"Kazuma… Kazuma… Kazuma——"
Kazuma had no idea that someone was obsessively thinking about him at that very moment.
However, Yamano Eitai had already noticed something.
He could clearly feel the changes in Natsuha-nee over the past few days. Not only had her attitude toward him shifted, but she also seemed constantly distracted, as if something was weighing on her mind.
"Natsuha-nee… what exactly happened to her?"
He walked along the roadside, feeling dejected. The growing distance between him and Shinomiya Natsuha gave him a strong sense of urgency.
Just as he was troubled, a stranger suddenly called out to him.
"Yamano Eitai?"
"Hm? Who are you?"
Being casually hooked around the neck by an unfamiliar blond man who acted overly familiar made Yamano Eitai feel uncomfortable.
"Ha, Eitai-kun, you might not know me, but I've seen you before." Oga Masaru smiled warmly and put an arm around his shoulder. "Hello, my name is Oga Masaru. I'm Shinomiya's classmate."
"Eh? Natsuha-nee's classmate?"
Yamano Eitai was surprised.
"Yeah, I've seen you two walking together. You're childhood friends, right? I envy you—having such a beautiful girl by your side," Oga Masaru said with a smile.
"N-not at all…" Yamano Eitai replied awkwardly.
But Oga Masaru didn't let him stay at ease for long.
"However, even though you're childhood friends, Shinomiya-san seems to be interested in another boy."
"What?!"
He froze, then shook his head frantically.
"Impossible, absolutely impossible! There's no way Natsuha-nee would like someone else…"
"I'm her classmate—I see her every day. How could I be mistaken? She cares a lot about that guy… the one named Kazuma."
At that moment, Oga Masaru's expression darkened slightly.
Every time he thought about how he had been completely crushed by Kazuma that day, anger surged within him.
His hand was still wrapped in bandages.
And Shinomiya… she kept secretly glancing at that guy every day, yet wouldn't even spare him a look.
He hated it.
He had already come up with a plan. That was why he approached Yamano Eitai.
Childhood friend?
In his eyes, that meant nothing—barely a threat at all.
Compared to Kazuma, this guy was insignificant.
That Kazuma was the real problem.
So he needed to cooperate with him… no, to use him.
Suppressing all his emotions, Oga Masaru put on a sympathetic expression.
"Shinomiya… she really… I thought your relationship was quite good, but I didn't expect that Kazuma to be an extremely dangerous fellow."
"…"
Yamano Eitai fell silent.
The moment Oga Masaru spoke, he already believed him.
He didn't need proof—he had already sensed Natsuha-nee's changes over the past few days.
If that illusion hadn't been shattered, he might have continued lying to himself.
But now, with Oga Masaru exposing the truth, he felt like his heart had been struck hard.
"Maybe… maybe it's just a misunderstanding. Natsuha-nee isn't that kind of person…"
Seeing him still trying to deny reality, the blond man's eyes flashed with disdain.
What a useless fool.
But precisely because he was so useless, he was easy to manipulate… easy to control… easy to use.
"Yamano-kun, if you keep being this naive, your woman will be stolen away!"
"!!!"
Yamano Eitai's eyes widened before he slowly lowered his head, clenching his fists.
"How… how could this happen… Natsuha-nee…"
"Don't worry, I'll help you," Oga Masaru said, patting his back with a smile. He then took out a small bottle from his pocket.
"Yamano Eitai, as long as you use this, you can make Shinomiya yours for good. Then your relationship will naturally move to the next level. You won't have to worry about losing her."
"Eh? This… isn't this a bit wrong?"
He hesitated. This kind of method felt too extreme.
"Eitai-kun, I told you—if you keep hesitating, she'll be taken by another man! Shinomiya is already attracted to him, and your situation is getting worse. Can you accept watching her fall into his arms?"
"Besides, you're childhood friends who already like each other. I'm sure Shinomiya won't mind. And… don't you want to be with her like that?"
Yamano Eitai's breathing became uneven.
"I understand…"
He took the bottle.
He couldn't accept Natsuha-nee being taken away by someone else.
"But… Oga-kun, why are you helping me?"
"Oh, it's simple. I just can't stand Kazuma. That guy is always surrounded by women. If someone like Shinomiya gets played by him, it would be too pitiful."
Oga Masaru spoke half-truthfully, but it resonated deeply with Yamano Eitai, who didn't doubt him at all.
"Thank you…"
Seeing the sincere gratitude of his "ally," the blond man almost burst out laughing.
This guy was unbelievably easy to fool.
Just as expected—a complete idiot.
Still, even an idiot had his use.
Because he could get close to Shinomiya Natsuha.
And that made him a very valuable tool.
A sinister smile slowly spread across Oga Masaru's face.
Since Kazuma was difficult to deal with, he would take Shinomiya Natsuha first.
Just thinking about her alluring figure filled him with anticipation.
He looked forward to Yamano Eitai's actions.
The two had formed a conspiracy, yet Yamano Eitai remained completely unaware of the other's true intentions.
Instead, he sincerely said:
"Oga-kun… you're really a good person."
On the way to school, Yamano Eitai walked beside Shinomiya Natsuha, feeling nervous.
He had struggled all night with his decision.
But remembering Oga-kun's words—that if he hesitated, Natsuha-nee would be taken away—he finally made up his mind.
He would use the aphrodisiac… and make things irreversible.
She shouldn't get angry… right?
After all, they liked each other.
And deep down, Yamano Eitai also desired that kind of relationship with Natsuha-nee.
He even felt a little excited.
Noticing the blond man following from a distance, and thinking of Oga-kun silently supporting him, he gained more courage.
"Eitai-kun? Aren't you going this way?"
Seeing him still beside her, Shinomiya Natsuha asked curiously.
It was hard to imagine that this elegant, pure, and charming girl was the same person who had been indulging herself obsessively at home.
"I want to visit Natsuha-nee's school. Is that okay?" Yamano Eitai said, trying to stay calm. "After all, I'll be attending here in the future. I've also heard the ghost stories about this school are famous, so I want to check it out."
"Ghost stories…? Alright, I'll show you around."
Although she agreed, Yamano Eitai clearly noticed her brief hesitation.
Oga-kun was right.
Natsuha-nee had changed.
And he still had nearly a year before entering high school.
That meant she would spend an entire year with that person.
Just imagining how their relationship might develop during that time made his chest tighten.
He had to act.
Ideally, doing it at home would be easier, but Natsuha-nee hadn't invited him over.
And Oga-kun suggested that the old school building was a better place.
So he followed that plan.
Behind them, the blond man watched as Shinomiya Natsuha and Yamano Eitai entered the school and headed toward the old building.
A satisfied smile appeared on his face.
"How smooth… As expected of Yamano Eitai. Shinomiya didn't suspect a thing."
"Even though he's useless, his identity as her childhood friend is incredibly convenient. If it were me… heh, she wouldn't obediently follow."
Her strength also made Oga Masaru wary, which was why he chose to use Yamano Eitai instead.
The old school building was practically abandoned—no one would go there.
It was the perfect place.
"Eitai-kun, since you've helped me so much… I'll let you have a little taste later."
Oga Masaru bought a drink from a vending machine, then secretly added his drug into it.
Seeing that the liquid showed no change, his smile turned even darker.
*****
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