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

In terms of intelligence, the two sisters are probably evenly matched, but they are like two identical eight-core CPUs. Feng has already run all eight cores at maximum performance, while Ling is still slowly working half of her time and slacking off the other half.

It would be strange if their grades didn't improve!

But it's okay, it's never too late to work hard. With an older sister who's practically an all-rounder except for English as her personal tutor, improving grades is easy.

Well, English, there's no way around it, it's a racial disadvantage...

Ling has always taken it for granted that she and Feng will always be together, so she needs to get a little busier now!

First, the math problem...

"Sousuke, how do you do these questions?"

"let me see."

Kitahara Sousuke glanced over and saw that the girl's notebook was still completely white, just like it had been half an hour ago, and couldn't help but chuckle.

He suddenly remembered a joke: when people are pushed to the limit, they'll do anything. Except for math problems, they can guess on multiple-choice questions, but if they don't know how to do other questions, they really can't even put pen to paper!

"Do not laugh!"

The girl puffed out her pink cheeks slightly and gave him a gentle, reproachful look.

"Okay, I won't laugh."

Kitahara Sousuke looked down at the questions. Japanese high school math textbooks are standardized nationwide. Leaving aside the first year of high school, the first semester of the second year covers analytic geometry, reasoning and proof, complex numbers, binomials, spatial vectors, conic sections and equations, inequalities, etc.

It's been almost a month since school started, and I've just finished studying analytic geometry. Clearly, this is a major area of ​​difficulty in both China and Japan. Fortunately, Kitahara Sosuke has a foundation built on diligent study from his previous life, plus...

Nowadays, people have increasingly sharp logical thinking skills and can quickly find solutions to problems.

Kitahara Sousuke casually picked up a pen: "This problem can be solved like this..."

Is math difficult? Of course it is.

There was a popular saying when I was in college: "There was once a tree called Advanced Mathematics, and many people died on it, and more people will die on it in the future." Especially in the area of ​​spatial geometry, if your logical thinking ability is not good enough, you will be completely confused and have no idea what to do.

However, high school math focuses on basic concepts—knowledge you can and should fully grasp. The reason many people struggle with math is... well, it's definitely because the teachers aren't teaching well!

Kitahara Sōsuke didn't know how much influence the teaching level of teachers in other subjects had on students, but he truly understood this deeply when it came to mathematics.

A good math teacher teaches students not only problem-solving methods, but more importantly, mathematical thinking.

In his previous life, Kitahara Sosuke also went through a period where he suddenly couldn't understand math. He remembered that it was right when he started learning about ellipses. He couldn't do almost every homework assignment the teacher gave him, and he was completely dumbfounded. In the end, he even began to doubt his own abilities.

Later, his parents hired a retired university professor as a tutor. He studied with the professor for about two weeks during the summer vacation. The professor's insightful explanations and his ability to reshape his mathematical thinking helped him pull back from the brink of self-doubt.

That's how analytic geometry is. When you first start learning, it's incredibly difficult. But once you break through that barrier, everything suddenly becomes clear, which is what we call "enlightenment."

"I understand, thank you, Aoi-suke."

The bell rang softly, and a quiet thank you was said.

"Don't mention it." Kitahara Sousuke smiled, then looked at the next question. "You can't answer the rest either?"

"No."

"Then let's continue watching together."

After explaining two more questions, Kitahara Sousuke's throat became a little dry. Being a teacher is not an easy job, and the work of speaking is also very tiring.

Moreover, mathematics is not something that can be mastered overnight. Besides doing problems, it's even more important to learn to think for yourself and process the information. Kitahara Sosuke decided to take a short break, allowing the girl to review the concepts she hadn't understood earlier.

Looking up, I realized that I had unknowingly moved quite a distance closer to Ling. Turning to look at the girl, I was surprised to find that our faces were only breaths apart. Our eyes met, and it felt as if we were back on the crowded tram.

Looking at the girl's delicate, flawless face so close to his, and her moist amber eyes, Kitahara Sosuke's heart suddenly raced. He suddenly recalled the feeling of the girl's finger on his lips on the train, and an uncontrollable impulse welled up from the bottom of his heart.

I want to eat dessert...

Rinna's delicate, cherry-blossom-like pink lips suddenly exuded an unparalleled allure, like a sailor on the Aegean Sea encountering a princess.

The demon was overcome with uncontrollable passion and could not extricate herself.

"Does Sosuke want some dessert? Kaede's gone to the bathroom."

As their eyes met, Ling suddenly spoke softly. The girl blinked, her face still expressionless, but with a blush that was more pronounced than usual.

Kitahara Sosuke glanced subconsciously at the empty seat on his other side and nodded as if possessed.

So the two of them moved even closer...

The scent of orchids, which he had smelled on the train during their previous date, lingered around his nose. Kitahara Sosuke slowly approached Rin's pretty face. As his reflection in the girl's watery eyes grew larger, Kitahara Sosuke gently yet decisively pressed his lips to the girl's delicate lips.

It was sweet, but not the kind of sweet that makes your tongue tingle. Kitahara Sosuke suddenly realized that besides the tongue, you could also taste sweetness on your lips?

The soft touch of the girl's lips felt like the most precious treasure in the world. Kitahara Sosuke aggressively took the girl's lips into his mouth, savoring them inch by inch, yet afraid of hurting her by being too forceful.

Then the sensation on the tip of her tongue was different from that on her lips. Upon first contact, the girl recoiled as if she were a frightened little animal, her teeth clenched tightly, keeping the bad guy out.

It was supposed to be just dessert, Sōsuke went too far.

However, Kitahara Sousuke had already given up all consideration. After wandering around unsuccessfully several times, he somehow managed to mischievously pinch Rin's proud and full breasts with his left hand.

"Well……"

A slightly panicked groan escaped the girl's lips. Her mouth was wide open, her pearly teeth parted slightly, and her delicate tongue had nowhere to escape, forced to become entangled with the other's.

Before they knew it, the two had gone from sitting side by side to kissing passionately on the floor...

"Wow—"

A soft flushing sound came from behind the closed bathroom door. Xingyue Feng returned to her seat, shook her hands, and looked at her younger sister, whose face was flushed, with a puzzled expression.

"Ring, why is your face red?"

"I couldn't do the math problem, and Sōsuke yelled at me..."

Ling said with a wronged expression.

"Oh..." Hoshizuki Kaede nodded dismissively, then looked at Kitahara Sosuke, who had been keeping his head down, and asked, "Why are you covering your mouth?"

"I spoke too fast and bit my tongue."

Kitahara Sousuke said calmly.

Chapter 189 The High School Boy Who Can Cook

Before we knew it, it was lunchtime.

Because they were going to continue studying together in the afternoon, Kitahara Sousuke stayed at the girls' house for lunch today.

Although he was a guest, Kitahara Sosuke couldn't bring himself to sit comfortably on the sofa and watch Kaede and Rin busy in the kitchen, so he decided to show off his skills a little.

"Bring me the plate."

Feng stared intently at the ingredients tumbling in the pot.

The girl wore an apron with a cartoon bear printed on it. Sunlight shone in from the window, illuminating her profile, her short blue hair reaching her neck, her fair and delicate face, and her cherry blossom-pink lips.

I wonder if twin sisters will feel the same way...

Kitahara Sousuke withdrew his gaze: "Understood."

On the other side of the stove were stir-fried celery and shredded pork, and scrambled eggs with onions, all already plated. Kitahara Sousuke's predecessor couldn't cook, and the skills he had acquired were all Chinese dishes he brought from before his transmigration.

Since I don't know if it will suit Hoshizuki's taste, I only plan to make two simple dishes. The rest are fried shrimp tempura and kenchin sauce made by Maple.

(Kenchin is a type of pure vegetable soup in Japan, but I don't know how to translate it...)

"stare--"

Kitahara Sousuke turned his head and saw Rin clinging to half of the kitchen door frame, quietly watching the two of them busy at work.

There was no other way; Xingyue's kitchen wasn't very big to begin with, and it was already a bit cramped for just the two of them. If Ling were to come in and help, they wouldn't be able to move around freely at all.

So Kitahara Sosuke handed over the task of tidying up the books in the living room to the girl, and it seems she's finished now.

In terms of cooking, because there is a home economics class at school, and they are both girls, Rin's skill level is actually about the same as Kaede's. Usually, the two sisters take turns making the bento boxes.

"come over."

Kitahara Sousuke waved to the girl.

"What does Sosuke want from me?"

The girl walked over quietly, her hands behind her back, tilting her head to look at the other person.

Kitahara Sosuke used his chopsticks to pick up a shrimp from the tempura that Kaede had already fried, dipped it in the sauce he had just prepared, and then held it to the girl's mouth: "Let me help you taste it to see if it's salty enough."

Tempura is an essential cooking skill for Japanese housewives. Kitahara Sousuke watched Hoshizuki Kaede demonstrate it once and roughly understood it.

This thing is actually deep-fried food. It's made by mixing flour and eggs into a paste, then coating the food you want to fry. Basically, you can deep-fry almost anything. The outermost layer is called tempura coating.

This means that everything can be made into tempura.

"oh oh."

Xingyueling nodded happily, then carefully reached out and held the chopsticks under her hand, parted her pearly teeth slightly, and took a small bite.

A crisp "crack" sound rang between the lips and teeth. The outer golden-yellow coating was quite crispy, and it took a little force to cut through it. The shrimp inside was equally delicious. With one bite, the sweetness and freshness of the shrimp burst in the mouth. Combined with the previously prepared sauce, the sweet and sour flavor perfectly masked the slight greasiness of the fried food.

The girl had a small mouth, and it took her three bites to finish a fried shrimp. Her pink cheeks were slightly puffed out, like a little hamster hiding several pine cones. Her slightly narrowed eyes and upturned lips indicated that the fried shrimp tasted pretty good.

Xingyue Feng, who was standing nearby, was putting the second batch of prawns coated in tempura into the fryer one by one. The girl turned her head to look at her younger sister who was being fed, and then focused on dealing with the boiling oil without saying anything.

I have a feeling that Rin and that scumbag Sousuke's relationship is better than before. Is that just my imagination?

As the last dish was served, the three of them took their seats at Kitahara Sousuke's invitation. The Hoshizuki family's dining table was a standard four-person table. Kitahara Sousuke sat on one side, while the Hoshizuki sisters sat opposite him.

"I'm gonna start now."

After the customary declaration before the meal, the three of them began to eat. Like the Kitahara family, the Hoshizuki family also practiced the typical Japanese system of separate meals.

This habit of separate meals is cultivated from a young age. In addition to factors of cleanliness and hygiene, there are also certain historical reasons: After World War II, Japanese elementary schools began to provide free lunches to students, and a separate meal system was implemented throughout, with communal tableware separated from personal tableware, and student tableware was strictly disinfected every day.

As a result, the children developed this habit, and it became natural for them to eat separately at home. Since the 1980s, separate meals have become quite common in Japanese households.

Japanese homes have an abundance of plates and dishes; almost every Japanese household has a sideboard filled with various colors and styles of tableware. Japanese cuisine features a wide variety of dishes served in small portions. Typically, the hostess will divide each dish into small plates, one for each person. So, for three people sharing four dishes, the plates alone can easily take up more than a dozen plates…

"You scumbag Sosuke, don't lie to me..."

Chinese food was a rare treat for the two girls. Onions and eggs were fine, but celery... celery had always been the Star and Moon sisters' nemesis.

"Give it a try, trust me."

"Oh……"