Hugging the World's Most Beautiful Younger Sister While Sleeping Somehow Turned Her into a Yandere - 30 - Amusement Park Date

“I’m at an amusement park for the first time.”

Exiting the karaoke place as the day turned to dusk, Aoi was with Runa at the amusement park. 

Although the rain had stopped and it was cloudy now, earlier in the day it had been pouring, so there weren’t many people around.

This amusement park offered a “Night Ticket,” which was cheaper for entry in the evening compared to staying the whole day. 

This made it accessible even for Runa, who had previously been unable to enjoy amusement parks due to her albinism, especially during this time of day.

“What do you want to ride?”

As they held hands firmly, Aoi asked, knowing the one ride they definitely wanted to go on, but wanting to let Runa choose something she liked, considering it was her first visit. 

They didn’t know when they’d be able to come again.

“I want to ride the roller coaster.”

Runa, who usually appeared cool and composed, seemed excited as she spoke, her eyes sparkling with anticipation. 

While riding a roller coaster at an amusement park could be considered a classic activity, it was a bit unexpected for her to suggest it out of the blue.

However, determined to make today as enjoyable as possible for her, Aoi simply nodded in agreement to Runa’s proposal.

With a smile on her face, Aoi led Runa to the roller coaster.

“It looks like we can get on right away.”

“Yeah, seems like it.”

On a typical holiday, they would probably have to wait in line, but today they were able to get on the ride without any delay.

They took seats next to each other and lowered the safety bar to ensure they wouldn’t fall during the ride.

“Ehehe. Being at an amusement park with Nii-san feels like a dream.”

With a genuinely happy smile, Runa, being a brocon, firmly held hands with her brother even as they boarded the roller coaster.

This roller coaster, known for its high speed and significant drops, is quite famous for being scary even among Japanese amusement park attractions. 

But it seems like Runa isn’t afraid at all.

Instead, she looks excited, eagerly awaiting the moment the ride starts, her face filled with anticipation and joy. 

It seems like she’s not afraid of heights, so she’ll probably enjoy the ride to the fullest.

“Th-That’s right…”

Just as Aoi thought it was good to see Runa having fun, the roller coaster started moving.

Clack, clack, it slowly ascended, making its way up.

“Nii-san, Nii-san, it’s so high!”

It seemed like Runa, riding a roller coaster for the first time, felt no fear at all. Instead, her excitement only grew as they ascended higher.

Is it really that much fun? Aoi wondered, just as the coaster made a clattering sound and suddenly picked up speed, plunging downward.

“Whoooaaahhh!”

Feeling dizzy and disoriented from the spinning sensation, Aoi was overwhelmed by the fear of the roller coaster.

This was the essence of riding a roller coaster, but all he could do was scream in terror.

“Hahaha, it’s so fast!”

Unlike Aoi, who was scared, Runa seemed genuinely thrilled.

“Ugh, I feel like I’m going to puke…”

After finishing the ride on the roller coaster, Aoi slumped onto a nearby bench.

While he rode mopeds when going shopping, roller coasters, with their rapid and extreme movements, caused him motion sickness unlike anything he experienced driving a bike or car.

He wasn’t about to throw up immediately, but he definitely needed a break.

It was indeed a roller coaster known to induce fear, ranking among the top five even in Japan.

“Pathetic, aren’t you?”

Unlike Aoi, who was slumped on the bench, Runa still seemed full of energy. In fact, she exuded an air of enthusiasm, as if she could ride the roller coaster a few more times.

However, perhaps upon seeing her brother go down after just one ride, Runa cast him a reproachful glance.

“Come on, hurry up and get better”

With an inexplicable gesture, Runa lightly tapped her own thighs.

Feeling queasy, Aoi couldn’t quite grasp what was happening, and a question mark seemed to hover over his head.

“I’ll, um, give you a lap pillow.”

“…Geh…”

Surprised by Runa’s proposal, which left her cheeks flushed, Aoi made a strange sound.

While she had done it indoors before, it was too unusual for her to suggest it outdoors. 

Even though there weren’t many people around, there were still some, and unlike at the karaoke place, if she were to give him a lap pillow at the amusement park, it would undoubtedly attract attention.

Therefore, he hadn’t expected her to offer a lap pillow at all.

“Why do you sound like a frog? Have you gone stupid?”

 Runa’s eyes widened with disbelief as she berated him with a tone of exasperation.

Certainly, it might be understandable for someone to feel exasperated if a guy gets knocked out after just one ride on a roller coaster.

“I-I didn’t think you’d offer a lap pillow outside…”

“Since we came in the evening, I don’t want you to be down for too long, Nii-san. As much of a siscon as you are, you should recover quickly with your little sister’s lap pillow. It’s not like I want to do it s-so d-don’t misunderstand!”

With a timid tone, Runa’s words seemed to follow the classic tsundere route, making an unexpectedly endearing appeal.

“Alright. Then I’ll gladly have it.”

Without hesitation, Aoi placed his head on Runa’s thigh, fully expecting to recover with her lap pillow. 

He felt the warmth, the sweet scent, and even the faint fragrance of the UV-protection cream she had applied earlier, just to be safe.

“You are not allowed to move an inch.” 

“Okay.”

He didn’t want to ruin the moment of enjoying Runa’s lap pillow. He was sure he’d recover in about ten minutes, so he savored her lap pillow until the nausea subsided.