My Stepsister in Kyoto

"Good morning, Minami-san." Mizuto greeted Akatsuki politely.

"Um, good morning, Irido-kun~!" Akatsuki greeted him cheerfully. 

Yet, no one could tell what the two of them had done inside his house at that time. 

"Are you okay, Yume-chan? Your legs are all wobbly." Akatsuki glanced at Yume's plump and long legs, which were covered by beautiful black stockings. She looked at those legs in a daze for a while as they were all wobbly and moved slowly before she glanced at Mizuto, who seemed to be nonchalant.

Her expression became subtle, wondering what perverted things these two stepsiblings did. 

However, she had to say, she felt a bit hurt when he seemed not to be unfazed even after what they did. While she knew that everything was under her initiative, it still hurt her when she saw that he seemed to be unaffected by what had happened yesterday, especially with how wild he was at that time. 

Tracing her thin, pink lips, Akatsuki was in a daze as she stared at Mizuto. 

"Akatsuki-san? Akatsuki-san?" 

"Ah, yes, what's wrong, Yume-chan?" 

"Are you okay?" 

"I-I am okay!" 

As the two girls talked to each other, Mizuto realized how perverted a high school student was. Even if he walked with the two girls, he noticed how many girls often stole a glance in his direction. If Yume and Akatsuki weren't present, he was sure that they would approach him, asking him for a name so they could befriend each other before reaching an even deeper relationship. 

"Yume-chan, I am sure that you have realized this, but he is pretty popular, you know?" Akatsuki whispered. 

"I-I know..." If it was before, Yume knew that she would be the only girl who knew about his greatness, but now?

If she couldn't hold him well, then... yet, was it really okay?

They had just become a family, and her mother gained a happiness that she had never received; could she dare to destroy it?

"What's with that face? You're going to scare everyone with that face, you know?" 

Her hair was being rubbed by Mizuto, but she didn't hate it and even felt like she wanted to cry as he noticed him. "I-I know. Don't be such a cheeky little brother; I am the older sister." 

"Yes, yes." Mizuto rolled his eyes and realized that his experience had increased slightly, which surprised him. 

Still watching Yume, who was all shy, Akatsuki only stared at this scene in silence without much expression before she quickly fixed that expression and made a hearty smile before they talked to each other.

As the three of them walked together, Yume and Akatsuki were the ones who mainly had the conversation, while Mizuto only joined occasionally. They were in the same class, so they went in the same direction and changed their shoes to slippers in the same block of the locker shoes. 

However, when he was about to change his shoes—

"..." 

Whether Yume or Akatsuki fell in silence since a number of letters dropped from his shoe lockers, causing their hearts to skip, but somehow, Mizuto was relatively calm and just picked up those letters before putting them into his bag and calmly changed his shoes into slippers.

"What's wrong?"

Yume and Akatsuki could tell the confusion on Mizuto's face, making their lips twitch. 

"It's not about what's wrong?!" 

"It's love letters! You receive a lot of them!" 

"So?" 

"....." 2x

Yume and Akatsuki wanted to say something, but no words came out from their lips. They knew that this guy was popular, but this was only the second day of their admission!

Yet, how could girls be so horny to give love letters!

"What are you going to do with them?" Yume asked hurriedly. 

"Of course, I am going to reject them." 

"Huh? Really? You are not thinking about dating them?" Yume asked curiously since his answer was so easy, which made her skip a bit for some reason. Did he reject those confessions because of her?

"Do you want me to accept them?" Mizuto asked. 

"...." Yume. 

"I was joking. You don't need to show that expression. Moreover, it is a little too fast for that kind of relationship, right?"

Akatsuki wasn't sure whether those words were meant for those who sent him love letters or for her, but she didn't look away from him and just stared at him in silence with her usual cheerful smile. 

"I-Is that so?" Still, Yume sighed in relief when Mizuto was going to reject all of those love letters. However, suddenly she noticed something, but when she was about to ask him a question—

"Ah, it's the cheeky underclassman!" 

While this voice attracted everyone, Mizuto simply ignored it, but the source of the voice came directly to him and hugged his neck tightly. 

"Dammit, how dare you ignore me?!" 

Being hugged so suddenly, he was hit by a sweet scent and the softness that resembled Yume for some reason, yet he knew that this wasn't Yume as their scent was different. While he wanted to enjoy this softness, his neck felt uncomfortable as the one who hugged him was rather short. However, while it was uncomfortable, this softness was also comfortable. He was caught in a dilemma, so he turned to see who had hugged him so suddenly. 

"Huh? Senpai?" 

He was surprised when the one who hugged him was the bespectacled Senpai, who had led the ensemble of the concert band the day before. 

"How could you ignore me when I call you?!" 

"Huh? Did you call me? Or rather, we haven't introduced ourselves, right?" 

"Now that you mention it." The bespectacled Senpai realized that they hadn't introduced themselves, but then she felt a bit annoyed when Mizuto tried to pull her hand away from him. Even if she hadn't had a relationship, she was pretty popular, okay? She had many people who confessed to her, and she pretty much rejected all of them, but somehow, this guy refused her skinship even if many wished to have one with her, but she also realized that she might be a little bit too close to him, especially when she noticed he seemed to have a girlfriend. 

'Why does an underclassman seem more adult than their Senpai?' 

She complained inwardly. 

"My name is Irido Mizuto. Nice to meet you, Senpai." 

While Mizuto still wished to enjoy the softness of his Senpai, he knew that he might cause the two girls behind him to go on a rampage. Moreover, he also knew his Senpai's breasts might seem close, but they were so far away. Yume and Akatsuki were different since they were close, and he could touch them, so it was obvious who he should choose.

"..." 

Still, she had to say, he was so handsome when she looked at him carefully. Still, she wasn't a woman who was moved by a carnal desire. "My name is Asuka Tanaka. I am in my third year, and I play the euphonium, so how about it? Have you thought of joining the concert band?"

"Hmm... I will think about it for a while." 

"Well, it doesn't matter. Still, you should try to visit the club in two weeks."

"Is there something special about two weeks from now?" 

"We plan to introduce each of the instruments to the new students. I am not sure whether you plan to join the concert band or not, but it won't hurt to learn more about the instruments, right? Maybe when you learn about those instruments, you might become interested in this club. Anyway, it won't hurt to learn more about this club, right?" 

Mizuto didn't answer immediately, and after a pause, he nodded. "I will try to visit then." 

"Come, come!" Asuka said cheerfully, then looked apologetic to Yume, who appeared so gloomy. "Sorry for hugging your boyfriend, okay~?" 

"What?!" 

"Hehe..." Asuka winked as she stuck out her tongue. "Then, adios~! Amigo~! Sayonara~! If possible, bring the two with you, okay~?" 

Watching Asuka leave, Mizuto thought that this upperclassman of his was like a storm, and similar to the storm, she left destruction in the aftermath. 

"Who is that?" Akatsuki asked curiously with a smile, but her eyes weren't smiling at all. 

"She is an upperclassman from the concert band. Remember when I went back with Oumae-san after the teacher called me out, right?" 

Yume and Akatsuki nodded. 

"I happened to meet that Senpai too. As for how we know each other, Oumae-san, Hazuki-san, and Kawashima-san are interested in the concert band club, and I happened to have an interest, too, so we just had a little chat." 

"You want to join the concert band club?" Yume was dumbfounded, but her mood was far better than Akatsuki's since she was mistaken as Mizuto's girlfriend. She knew that he had an interest in the concert band, but she didn't expect that he would join the club, which made her think that the Mizuto that she had dated was really different since the previous Mizuto wouldn't think to have a driving license or join a concert band club. 

"I am not sure. I will come in two weeks to the clubroom to make up my mind. By that time, I should have gotten my driving license." 

"Eh? Driver's license? What are you talking about?" Akatsuki became confused by their conversation. 

Still, before Mizuto answered Akatsuki's question, someone called him again. 

"Irido-kun." 

Mizuto turned and was surprised by the person who greeted him, and he could see she was quite nervous as she wasn't used to this. 

"Good morning, Kousaka-san." 

"Good morning." 

Hearing his polite greeting, Reina also sighed in relief and showed a light smile. 

"Have you joined the concert band club?" 

"Yes, I registered yesterday." 

"Oh, right, by the way, this is Yume Irido and Minami Akatsuki. They are the same class as us." 

"Hello..." Reina nodded politely as she looked at Yume and Akatsuki curiously.

"Yume, Mimami-san, this is Kousaka-san. She is also in the same class as us." 

"Hello." Reina was a bit nervous, but she never showed much emotion on her face as she was as cool as ever. 

Naturally, Yume and Akatsuki knew that Reina was in the same class as them, but Reina, who they remembered yesterday, was so cold, especially when she outrageously rejected the guys and even girls who wanted to introduce themselves to her; why did this cold girl suddenly come and greet Mizuto?

Was it because he was handsome? 

Was he so handsome that he would make all the girls in the school into a heat?

Nevertheless, Yume and Akatsuki knew that in this school, they would have a lot of fierce competitors like Reina, whose boobs were so outrageous. 

*Boing~!*

"Hmm?" 

Reina tilted her head in confusion as she saw Yume and Akatsuki, who seemed to be distracted for some reason. 

"....." 

While Yume made a complicated expression, Akatsuki glanced at Reina and Yume as she could only cry silently. 

---

NOTE: 

I am not sure about writing a lemon, but I will write something similar to a lemon subtly, and it won't be so straightforward. 

As for Kenichi, to be honest, it's been a while since I heard someone mention that story, but I won't add Kenichi. Sorry. 

By the way, there are a lot of words in this chapter, so be grateful.