Strength From Above

"Don't be dazed."

Naoki randomly circled a sentence in the exercise book, then handed the pen to Yuika, and ordered: "Now translate this sentence into a general question sentence."

"I-I'll give it a try."

Yuika nervously picked up a pen and took a deep breath. Translation questions that are usually difficult are actually written easily.

"Senpai, did I do something wrong?"

Yuika raised her face and looked nervous.

"You can read the answer yourself later." Naoki pointed to another sentence, "Now translate this sentence."

"Un."

Naoki asked Yuika to write a few sentences in a row, then said, "Now you can see the answers on the back of the exercise book."

"Uhhh..."

Yuika took a light breath, flipped the exercise book to the answers on the back, and quickly opened her eyes, "Eh, I got all the questions right?"

"As long as you master the correct method, English isn't really that difficult." Naoki concluded.

"Wow, this is amazing!" Yuika looked up, her eyes full of surprise, and she grabbed Naoki's wrist: "This is the first time I feel English is so simple, senpai is amazing!"

"Too close."

Naoki leaned back slightly and avoided the distance, showing absolutely no interest in this pervert.

"Eh?"

Yuika was surprised, "What's too close?"

"Gender and acceptance are not close." Naoki said seriously, "That has exceeded the contact distance between men and women required by school rules."

"Waiter, don't be so arrogant." Yuika blushed and loosened Naoki's sleeves, sat up straight, and turned to look away.

What about men and women who get too close? Last night, you hugged me in the bathroom and bullied me. According to the school rules, you must now repent and apologize in front of all the teachers and students of the school!

"Continue working on the exam questions I circled." Naoki handed the exercise book to Yuika, then read the book.

After a while.

Slight itching in the waist.

The familiar smell of chocolate mixed with milk wafted into his nostrils.

"Stupid Nii-chan." Rin poked Naoki's waist, and said expectantly, "I've finished the question, quickly give me some pocket money."

"Let me check."

Naoki took the notebook in front of Rin, glanced at the topic, and quickly said, "No, write again."

"Why?"

"Formulas are the basis of mathematics." Naoki took a pen and circled the places where Rin had made a mistake. "These formulas were copied ten times each."

"Ten times?" Rin's face showed a fallen expression, "Stupid Nii-chan doesn't know how to be considerate at all, you made me do it so many times at once, and my hands will be too sore to lift tomorrow morning."

Shut up! Plus, just copy it a hundred times, so you can really appreciate what it means to be tired!

"Hurry up and write." Naoki was expressionless, "If you don't write, you won't have any pocket money."

This trick is perfect for taming the stupid little sister who likes easy things. Even though Rin was full of hatred, under the temptation of pocket money, she still picked up a pen and faithfully wrote down the formula.

"Done copying…" Rin was lying on the table, weakly saying, "Why does Nii-chan like such boring math formulas?"

"This math formula isn't boring at all." Naoki looked serious and looked at his stupid little brother, "Behind every simple and boring formula, there is an engraving of the mathematician pursuing the truth of the world."

"Calculus is a truth discovered by Newton in the process of studying universal gravitation through Kepler's laws. The mass-energy conversion formula looks very simple, but it is the culmination of 10 years of optical research by Einstein."

"Every formula in this book is behind the efforts of mathematicians over years or even decades. It is the crystallization of human wisdom and the fragments of truth in the world."

Naoki said melancholy: "We are walking on the path that our ancestors walked. We can solve so many complicated problems just by memorizing formulas, so don't say things like boring."

Yuika raised her eyes and looked at Naoki's profile in the setting sun, her heart rate slowly increased: "The current Servant looks really handsome..."

"It has been decided." Rin clenched her fists and said with shining eyes, "I want to be a mathematician in the future."

Naoki ruthlessly crushed his sister's stupid idea: "You can't."

"Nii-chan is too much." Rin raised her head, "As an older brother, shouldn't you support your little sister's dream?"

"You are a fantasy, not a dream." Naoki looked disgusted "Do you know Pascal's theorem?"

Yuika and Rin's eyes looked confused: "I don't know."

Naoki took a pen and briefly explained Pascal's theorem on paper, but unfortunately the two middle school girls still didn't understand.

"I'm so sorry, I don't understand what senpai is saying at all."

"Nii-chan, I'm so sleepy, I want to sleep."

"This is a theorem that Pascal discovered and proved at the age of 16." Naoki put down his pen, not expecting the two of them to know, "In short, mathematics is different from literature, and mathematics lessons have nothing to do with humans."

"Of course." Naoki paused "It has nothing to do with idiots."

"Nii-chan looks down on me." Rin said angrily, "I also discovered the theorem yesterday that people can lift themselves up by grabbing their hair, as long as they have a lot of strength."

If your physics teacher hears this, he will vomit blood and die!

"What is Newton's third law?" Naoki asked.

"I know." Yuika raised her small hand, "The law of action and reaction."

"When you pull your hair, you jump in pain, right?" Naoki couldn't help but say, "This isn't the same as pulling yourself off the ground."

"But I was watching TV the other day, and saw the emcee say that there was a man named 'The Overlord' in ancient times, who had powers above humans." Rin still refused to save the physics teacher who had vomited three liters of blood, and continued, "That just means pulling yourself up by your hair."

The others were Overlords, but they weren't stupid. When Yu Ji hears you say that to Xiang Yu, he will be so angry that he is resurrected to fight you!

"With just one tool, people can lift themselves by grabbing their hair," said Naoki suddenly.

"Eh?" Yuika looked at him in surprise, "Is that really possible?"

"Only Rin can." Naoki looked at Yuika "You can't."

"Huh." Rin lifted her chin and hummed proudly, "Did stupid Nii-chan finally discover the true identity of the Lord of the Clow Cards?"

"It has nothing to do with the Clow card, you only need a set of pulleys." Naoki drew a set of pulleys on paper with a pen, and then said. "You put the ponytail into the pulley and from the other side hold the ponytail and you can literally pull yourself off the ground and save half the effort."

"Amazing," Rin said in admiration, "Turns out a double ponytail can still be used like this… Hey, what are you doing Nii-chan?"

"Don't talk, I want you to be quiet."

...

Naoki calmed down and came back to see that only Yuika was left, and Rin had left.

"Rin-chan went to the bathroom." Yuika raised her head and looked up, "I heard Rin-chan said that senpai likes to eat matcha chocolate?"

"So what?"

Yuika opened her school bag, took out a box of matcha chocolates, and lifted the corners of her pink lips gently, "As long as senpai licks my hand, this box of chocolates can be given to you."