Crossover Anime: The Heroine's Savior in the Other World

"Mom said she's bringing guests over for a visit today."

Chapter Two: My Little Sister is Akizuki Airi

It has been more than a year since the father of the Kitahara family passed away. Although he was a university professor with a high income and left behind a large inheritance, it was not something that the Kitahara family, with three children, could squander.

Nevertheless, the fact that they own a house in Chiyoda Ward, Tokyo, is enough to show that the underage Kitahara siblings are not troubled by financial problems.

but……

Standing in front of the full-length mirror, Kitahara Sousuke gazed at the unfamiliar figure and face reflected in the mirror and sighed softly.

At 1.82 meters tall, she should be considered to be of excellent height in Japan. However, her slightly forward-leaning posture due to sitting in front of the computer for long periods of time, her haggard face and dark circles caused by staying up late, and her protruding belly from overeating high-calorie foods actually diminish her height advantage.

No wonder my four dimensions in the assessment results, apart from slightly higher intelligence, were all hovering around 50.

However… “Body Enhancement!”

He silently recited the skill name in his mind, and the back that was originally hunched in the mirror instantly straightened up, and the slightly protruding belly suddenly tightened, revealing neat eight-pack abs underneath.

"Hmm, not bad, it's clear there's hope for improvement."

Simply covering his eyebrows and the messy long hair that hid his ears was not something that could be dealt with at the moment, Kitahara Sosuke finally concluded:

He is an ordinary high school student in every way, and his physique is even weaker than that of his peers. He is neither fair-skinned nor handsome, but with careful grooming, he should be able to reach a fairly good level.

……

Good morning, Ellie.

After washing his hair and taking a quick shower, Kitahara Sosuke sat down at the dining table, picked up a slightly charred slice of bread, took a bite, and greeted his younger sister who was drinking milk beside him.

Like Marina, Airi was also raised by the Kitahara family from a young age. Kitahara Sosuke vaguely remembered that he first met his sisters when he was about three or four years old, when they were still infants.

From then on, my childhood was marked by two extra little tails. Unfortunately, now…

"Ugh, stop staring like that, it's disgusting."

The girl sat on the chair with her legs bent, holding the cup on her lap with both hands. She lowered her head and stuck out her little tongue, teasing the milk in the cup like a cat.

Hearing Kitahara Sosuke's voice, her toes, encased in over-the-knee socks, twitched shyly. She turned her delicate face away, tilted her head back, and gulped down the remaining half-glass of milk.

The younger sister is a tsundere, and Kitahara Sosuke is used to this attitude. The image of her licking the milk with her tongue in small sips suddenly reminded him of the widely circulated picture of a rabbit drinking water from his previous life.

Yeah, not very good, just really.

And so, as if possessed, Kitahara Sosuke blurted out:

Does Ellie like rabbits?

"Hmm...wait?...Pervert!"

Kitahara Airi's pink face flushed bright red from her ears down. She jumped off the chair, frantically covering her skirt and taking two steps back.

Her over-the-knee socks made a "thump, thump, thump" sound as she stepped directly onto the floor. She dashed back to the living room sofa, grabbed a cushion, hugged it to her chest, and glared at Kitahara Sousuke from afar.

"..."

"Ah, this," Kitahara Sosuke paused for two seconds, his gaze climbing up the over-the-knee socks, before quickly realizing what had happened and couldn't help but curl the corners of his mouth, realizing he hadn't seen anything at all.

"You still watch!"

With a blush, Airi threw the pillow at Kitahara Sosuke. With only 32 points of strength attribute, the pillow flew less than half a meter in the air before crashing to the ground.

"Who would care about someone like you... ah..."

Kitahara Sousuke muttered something to himself, then turned away to focus on the breakfast in front of him.

"Nissan, would you like another slice of ham?"

"it is good."

Marina came out of the kitchen with her breakfast and sat opposite Kitahara Sousuke, adding a slice of ham to his plate with a fork.

Unlike her smaller sister, the larger sister is much cuter. Not only does she thoughtfully take care of all the housework, but when their mother, Hanako, is busy with work, Marina also makes lunchboxes for the three siblings.

Most people are members of the "looks-matter" club, and Kitahara Sousuke is no exception. Although the Kitahara sisters have very different personalities, they all have exquisite looks and enviable... figures.

Well, compared to Marina's cup size, which is far beyond that of her peers, Airi really is just a little sister.

If Marina is the type who would accidentally get stuck in the washing machine while helping with laundry and cry out "Brother, save me!", Airi is probably the type who could easily slip through the gaps in the school fence to skip class and then proudly show off with her hands on her hips.

Okay, that's a bit too harsh. Ellie is still young, and her future is bright.

"I feel like Sousuke is thinking something very rude."

Ellie, sitting on the sofa not far away, suddenly felt a sense of malice. Her older brother looked her and her sister up and down for a while, then suddenly cast a sympathetic glance at her.

"I was wondering when was the last time Airi called me 'Onii-chan' so sweetly, like Marina did?"

"I, I never called you that!"

Ha, being arrogant is so easy to manipulate...

"Brother, are you going out today?"

"Probably not. What's wrong with Nanami-chan?" (まりな→Nana→七)

"Huh?... Um (ah), Mom will be bringing Uncle Akizuki over to visit after her night shift. Nii-san wasn't home the last two times, so shouldn't we meet him today...? She said she has something important to tell us..."

"So cute!" Marina blushed shyly after just a few words of her childhood nickname. Kitahara Sosuke, who was about to continue teasing the cute girl, frowned when he heard the name "Akizuki."

"Nii-san... if you don't like it..."

Marina is a very observant child. She noticed that her brother's expression changed drastically when Uncle Akizuki was mentioned, so she immediately changed her tune.

"No, it's nothing. Let's go see Uncle together with Nana-chan."

Kitahara Marina and Kitahara Airi, their family still inherited their deceased father's surname, so it's no wonder that her two younger sisters' names felt strangely familiar yet somehow inexplicable.

I can probably guess some of the important things. If the so-called "Uncle Akizuki" becomes my stepfather in the future, my sisters will probably have to change their names to Akizuki Marina and Akizuki Airi as well.

"That name sounds so familiar..."

Kitahara Sosuke didn't ask any further questions about Uncle Akizuki's full name, nor was it necessary. There are no such things as coincidences in the world; everything that is meant to happen is an inevitable outcome.

It's just that my life, which had just started afresh, has already encountered a major crisis in less than 24 hours.

Kitahara Sosuke doesn't care whether he is "Kitahara Sosuke" or "Akizuki Sosuke" after his mother remarries, but his sense of protecting his family is deeply rooted after merging his memories.

Thinking about what might happen next... ah, my fist hardened.

"Where's Ellie?"

Kitahara Sousuke turned his head and glanced at his younger sister, who was still sulking with him on the sofa.

"I hate that old man who just leers at Airi. He's even worse than that idiot Sosuke. I never want to see him again."

Chapter Three: You want to be my dad? And you want to be my brother-in-law?

After breakfast, Kitahara Sosuke wanted to help Marina clear the table, but his kind-hearted younger sister pouted and pushed him out of the kitchen.

"Brother will only make things worse in the kitchen, he should go and comfort Ellie."

Oh, I've been criticized like that. It turns out that in my big sister's eyes, I'm just an idiot who can't even find the start button on the dishwasher.

Kitahara Sosuke lay back on the single sofa, feigning dejection, staring blankly at the ceiling. Airi sidled over from the three-seater next to him, stretched out her small foot, and poked Kitahara Sosuke's face with her toe.

"Poke...poke..."

"Miscellaneous fish, Aoi-suke..."

"what?"

Kitahara Sosuke grabbed the little foot that was about to stick into his nostril and asked in an annoyed tone.

The girl's feet, encased in pure cotton over-the-knee socks, felt wonderful to the touch; there was even a faint scent of laundry detergent and shower gel. If I were to get closer and take a deep breath… well, never mind, I'm not a pervert.

Airi pulled her leg back and changed to a prone position on the sofa, moving little by little like a caterpillar to Kitahara Sousuke's side.

"I don't like that uncle..."

"Oh."

“He would stare at Ellie with disgusting eyes during class.”

"Oh."

"Maybe it's the same for Marina!"

"Oh."

Well, in this respect, the larger one is indeed less agile than the smaller one.

“Idiot Sosuke… I don’t want to call that person Dad.”

"It's okay, you can continue to call me uncle after we get married."

"Bang!" His head was kicked hard.

Seeing that the other party was unmoved, Ellie pouted angrily, wanting to punch her idiot older brother. But since she needed his help, she had to be patient.

“Sōsuke…”

"What else?"

Something's definitely up when things are acting strangely. Airi, who usually just yells like a stupid bum, has suddenly become very well-behaved. Kitahara Sosuke suppresses a laugh and pretends to be indifferent, watching her performance.

"If we change it to Akizuki Sosuke, wouldn't the name be a bit awkward to pronounce?"

"It's not much simpler than Kitahara Sosuke's, is it?"

"The newcomer might abuse her ex-husband's children severely, you know?"

"Ellie definitely wouldn't do that, would she?"

"I'm worried about you, you idiot big brother. You're the kind of guy who just leers at Airi and Marina. You might see the eldest son as a thorn in your side."

"Then I can only offer up my cute little sister. Maybe as an obedient older brother, I can get extra pocket money."

"Ah! Die! You bastard brother!"