In the morning, Hoshino Miru's consciousness was hazy. He only felt something wriggling on top of him.
Immediately after, a soft and moist sensation came from below, extremely warm, as if wrapping around Hoshino Miru from all directions.
Because he hadn't fully woken up yet, Hoshino Miru felt more like he was in a dream. Images of Mikazuki Fuka with a completely red face flashed through his mind. Having the girl pressed on top of him gave a similar sensation, though right now it felt even more comfortable and moist.
Hoshino Miru instinctively wanted to lift his waist, but vaguely heard a girl's whimpering sound. That comfortable feeling grew stronger and stronger, so comfortable it was almost like wetting the bed.
Wait, what bed-wetting?
Hoshino Miru suddenly snapped awake. As soon as he opened his eyes, he saw his blanket was raised high, clearly hiding a bold and reckless culprit.
Without hesitation, he lifted the blanket, and sure enough, it was Kasugano Sora causing trouble below.
Their eyes met. Kasugano Sora was the first to show a sweet smile, her pretty face pressed against a certain thing, saying playfully: "Good morning, Onii-chan!"
"Did I enter the wrong personal route?" Hoshino Miru forced himself to calm down. This morning scene was just too impactful.
"Probably not. The route Onii-chan entered yesterday was indeed the little sister route." Kasugano Sora helped guess while gently nuzzling Hoshino Miru with her small face. "Based on my experience, the sister route usually has this kind of scene. Onii-chan doesn't need to be nervous."
Hoshino Miru took a deep breath. He knew back then he shouldn't have let Eriri and Kasugano Sora hang out together. Now Kasugano Sora had also become an expert in visual novels.
"Is this what you meant yesterday?" Hoshino Miru hadn't forgotten. He remembered very clearly making a bet with Kasugano Sora.
"What is Onii-chan thinking? Did you think little sister's hypnosis technique was just kisses and hugs?" Kasugano Sora licked her lips. Combined with this scene, she actually showed a hint of seductiveness on her pure, cute face. "A girlfriend can't do this kind of thing. Only a little sister would be willing to wake Onii-chan up like this every morning, you know?"
As she spoke, the girl intentionally or unintentionally tossed her hair. Her moist red lips gently parted, letting Hoshino Miru clearly see how she swallowed it down.
Hoshino Miru wanted to look away, but his body's instinctive reaction was more honest than him. The girl before him had completely grasped a man's weakness.
Kasugano Sora was wearing his t-shirt, kneeling below. When her body bent down slightly, her snow-white collarbone would be exposed. Her tender, smooth skin was almost completely undefended. Only now did he remember that Kasugano Sora especially disliked wearing things that bound her little bunnies at night.
Seeming to sense Hoshino Miru's gaze, Kasugano Sora couldn't help but smile softly, her small hand grasping Hoshino Miru.
"Does it feel good?"
Hoshino Miru's emotions were complex. He had just said this line to Sumita Mana yesterday. He didn't expect karma would come back to him so quickly.
However, Hoshino Miru had no reason to resist.
Because his bet with Kasugano Sora was exactly this—no matter what Kasugano Sora wanted to do to him, he couldn't refuse, and he had to endure for a month.
During this bet period, if Hoshino Miru could withstand Kasugano Sora's temptations and not make a move on her, then he would win.
Kasugano Sora would have to accept the existence of a girlfriend and obediently cooperate with her brother.
If Hoshino Miru lost, then unfortunately, that girlfriend would be Kasugano Sora, and Hoshino Miru could only have her as his one girlfriend.
Hoshino Miru had thought Kasugano Sora might do something strange, but he didn't expect it would be like this on just the second day.
Normally, shouldn't this be saved for later as the ultimate trump card?
Seeing Hoshino Miru remaining silent, Kasugano Sora was somewhat dissatisfied. Her small hand vigorously stroked several times, making Hoshino Miru's expression very unnatural.
"Don't you feel shy doing this kind of thing?"
"Not at all. Because it's Onii-chan, and it's natural for a little sister to do this."
"A normal little sister would never do this kind of thing."
"What does it matter? We're not blood-related siblings anyway."
"..."
Kasugano Sora's definition of siblings had always been flexible. Once Hoshino Miru tried to discipline her, she would immediately withdraw the sibling relationship.
However, just as she said, watching the girl's little head moving up and down in small motions, her usually pure and cute face working hard to suckle, Hoshino Miru's breathing was heavy. He could also feel that the little girl who once needed his care had become a temptress who could seduce men.
To better tease him, the girl seemed to lie on Hoshino Miru's thighs, her little perky bottom swaying slightly behind her. The bending motion made her round, bulging shorts tightly stretched.
Hoshino Miru couldn't suppress his impulse, which resulted in Kasugano Sora making whimpering sounds, her slender small hands pressing on Hoshino Miru's thighs.
At first, she could persist a little, but later it still choked her throat. Her cheeks turned completely red, and she couldn't help coughing. This way, her pretty face and chest almost suffered disaster.
When Hoshino Miru came back to his senses, he found Kasugano Sora's face was all messy, looking very pitiful.
Hoshino Miru immediately realized this was the effect of「Anime Volume」. Under normal circumstances, there wouldn't be such a terrifying amount—it would take at least a dozen times to achieve the same effect.
"Let me wipe it for you." Hoshino Miru felt very guilty. After all, it was his fault for making the girl look like this.
Hoshino Miru grabbed tissues from the bedside table. Kasugano Sora seemed to still not have recovered.
After Hoshino Miru finished wiping her face clean, she looked at Hoshino Miru with some bewilderment.
"Onii-chan, have you been holding back for a long time?" Kasugano Sora began to blame herself. With such an impressive amount, it must be because she made Hoshino Miru endure for so long.
"What are you thinking? Go brush your teeth quickly." Hoshino Miru had a dark expression, though he was too embarrassed to tell the truth.
Kasugano Sora glanced at him, her fresh little tongue gently licking her lips, the moist red luster radiating a certain bewitching temptation.
Although she was startled, Kasugano Sora didn't take it to heart. Rather, she was still savoring the taste from just now.
This scene made Hoshino Miru somewhat unable to resist, though he still had his rationality and knew he couldn't really be impulsive.
"I'm sorry, Onii-chan. Next time I'll swallow it all." Kasugano Sora blushed, as if choking on something just now was really too embarrassing. Next time, no matter what happened, she would endure it.
Hoshino Miru's body stiffened. If every morning was like this, could he really withstand it?
...
Because of this little incident, the two arrived at school a bit later than usual.
"Good morning, Sora, and Hoshino-senpai!"
Hoshino Miru had been somewhat absent-minded, but suddenly heard a girl's voice. Looking up, he saw Hoshizuki Kaede and Hoshizuki Suzu standing at the school gate, wearing discipline committee armbands on their arms.
"What are you doing?" Kasugano Sora quickly let go of Hoshino Miru's arm, her cheeks slightly red, not knowing whether she was afraid of the discipline committee or embarrassed to show too much intimacy with Hoshino Miru in front of them.
"Today we're discipline committee members. We have to stand guard here." Hoshizuki Kaede had a serious expression, her gaze constantly scanning the surroundings, as if checking for suspicious targets.
Seeing their appearance, Hoshino Miru understood. The student council slackers had dumped work on the newcomers.
Toyosaki also had a discipline committee that specialized in catching students who were late or left early, and occasionally dealt with students who wanted to dye their hair green.
After all, being lax was one thing, but there were still school rules.
Kasugano Sora didn't really understand these things. As long as they weren't catching her and Hoshino Miru, it was fine. Even if they were catching students dating, at worst she could just avoid this pair of twin sisters in the future.
Hoshizuki Kaede found that neither Hoshino Miru nor Kasugano Sora showed the reaction she wanted. Her serious face became hard to maintain. She had finally become a discipline committee member, but everyone seemed unsurprised.
At this moment, Hoshizuki Suzu saw her sister's predicament and spoke up: "Senpai, do you want to guess today?"
Hoshino Miru was quite surprised—this was the first time he heard her voice.
"I almost forgot. Can senpai still tell who's the older sister now?" Hoshizuki Kaede remembered yesterday's incident and couldn't help getting excited.
Kasugano Sora's face immediately darkened. What were this pair of twin sisters trying to do?
"You're the older sister." Hoshino Miru had no hesitation.
Hoshizuki Kaede froze, her eyes widening. Today she had specifically worn the exact same outfit as Hoshizuki Suzu—both wore the same school uniform and the same black knee-high socks. There was no reason he could tell them apart, right?
"What do you think, Sora? Am I the older sister or younger sister?" Hoshizuki Kaede refused to believe it and looked at Kasugano Sora.
Kasugano Sora showed a hesitant expression, then said uncertainly: "You should be Kaede-san, right?"
Hoshizuki Kaede was deeply struck. Was her disguise really that obvious?
"Your personalities are too distinct. The older sister is very lively, while the younger sister never says a word." Hoshino Miru found it somewhat amusing. He didn't know what was the point of this disguise.
Hoshizuki Kaede had a sudden realization. So it was her sister's fault! She felt somewhat indignant.
"What if we both don't talk next time?"
"That would be a bit hard to guess."
"Hehe, I'll remember that. Senpai, remember to keep guessing tomorrow!" Hoshizuki Kaede seemed particularly satisfied. Hoshino Miru didn't know what she was happy about, but her [Intimacy] was increasing very quickly.
[Hoshizuki Kaede's intimacy toward you has increased. You can choose any one of the following options.]
[One: Charm +1]
[Two: Stamina +1]
[Three: Hoshizuki Kaede's worn socks]
Hoshino Miru chose the first reward, then began to think.
Compared to the older sister, Hoshizuki Suzu the younger sister's [Intimacy] toward him hadn't moved at all. Even though they met at the same time, their progress bars were different—it seemed strange.
Could it be that the two had different first impressions of him?
Hoshino Miru knew [Intimacy] didn't completely equal favorability. Doing bad things could also leave a deep impression on others. The more they cared about Hoshino Miru, the faster their [Intimacy] would increase.
Unless the other person truly didn't care about Hoshino Miru at all and completely didn't take him to heart.
Hoshino Miru glanced at Hoshizuki Suzu. Her pretty face showed no expression, immediately reminding him of Wakaba Mutsumi.
However, the two were completely different.
Wakaba Mutsumi was holding back what was in her heart—wanting to speak but unable to, a hesitant expression that was especially easy to guess, making Hoshino Miru want to tease her every time.
However, Hoshino Miru couldn't guess what Hoshizuki Suzu was thinking. This was a very cold girl.
...
Before returning to the classroom, Kasugano Sora suddenly pulled Hoshino Miru aside.
"Onii-chan, do you like twins?"
"In your eyes, do I really lose control whenever I see a pretty girl?" Hoshino Miru's mouth twitched as he flicked her forehead. "They're your friends. Get along well with them."
Kasugano Sora pouted. She wasn't eating vinegar randomly. Who told Hoshino Miru to keep staring at Hoshizuki Kaede and Hoshizuki Suzu just now? With such pretty twin sisters, wouldn't boys' imaginations run wild?
However, thinking of this morning's events, Kasugano Sora's mood improved.
So what about twins? So what about Eriri? She now had the initiative. Sooner or later, she would make Hoshino Miru unable to resist making a move on her, leaving Eriri crying on the sidelines.
"Onii-chan." Kasugano Sora called out softly.
Hoshino Miru looked over, somewhat puzzled: "What's wrong?"
"Nothing, I just wanted to call Onii-chan." Kasugano Sora held her bag with both hands. Her smile carried a hint of mischief. "Just reminding you that little sister's hypnosis technique is also effective at school."
Hoshino Miru's heart beat a bit faster. She couldn't be planning to do something in front of Eriri, could she?
"I'm going now, Onii-chan." Kasugano Sora knew what he was thinking and deliberately showed that meaningful look, but said nothing, letting Hoshino Miru imagine her intentions.
Hoshino Miru belatedly realized he seemed to have fallen into his little sister's trap.
At this point, regret was impossible. He could only face it head-on.
Hoshino Miru returned to his classroom and took out yesterday's notebook. After thinking for a while, he also took out his phone.
「Hoshino Miru: Are you free on your day off?」
「Toyokawa Shoko: I'm free, but what do you want to do?」
「Hoshino Miru: I want to discuss composition with you.」
「Toyokawa Shoko: Okay.」
「Hoshino Miru: Won't you ask why?」
「Toyokawa Shoko: I'm also happy to help people (laugh)」
Hoshino Miru's mouth twitched. After not seeing her for a few days, Toyokawa Shoko could even joke now.
「Toyokawa Shoko: Have you been with Mutsumi this week?」
「Hoshino Miru: I practiced guitar with her the day before yesterday, but it felt a bit boring. I'm planning to go out and play with her next time.」
「Toyokawa Shoko: I see. Have fun together (laugh)」
For the last message, Hoshino Miru waited a long time, thinking about how to reply to Toyokawa Shoko.
At this moment, he received a message from Mikazuki Fuka.
「Mikazuki Fuka: Come over at noon today. I'll wait for you in the library. Don't tell Sawamura-san.」
「Hoshino Miru: My sister wants to have lunch with me at noon.」
「Mikazuki Fuka: Hoshino-kun, you can choose not to come, but next time I can't guarantee your personal safety.」
Hoshino Miru's face darkened. This girl's courage was getting bigger and bigger!
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