Buy some blank paper and pens.

So is it child-oriented, or normal-oriented?

Asai Yang, who hadn't stepped into his house yet, had such doubts when he walked on the road, but judging from the other party's somewhat capable voice, it should be normal A4 paper and an ordinary neutral ink pen.

But how much to buy, for this, Asai Yang was a little puzzled.

I don't know how much to buy, so I buy more, and there will be nothing wrong with this.

Thinking like this, Asai Yang bought a total of 200 sheets of A4 white paper for printing and a box of water refills that were enough for him to use his entire high school career, and walked slowly to his home.

Tsuno Asai, who was dressed in a white robe and crossed his waist, appeared in the sight of Yang Asai, who had just opened the door of his house.

There seemed to be a slight dissatisfaction on her face, probably because she disliked Asai Yang walking too slowly.

Looking at the blue-black plaid shirt, blue-black plaid skirt, and the wide robe that seemed to fit just right, Asai Yang's heart had some doubts.

[Today's is probably the younger sister of a science student.] 】

"What do you want to draw on these papers?"

With a little curiosity, Asai Yang asked while handing the paper in his hand to the other party.

"Time machines and perpetual motion machines of the first kind."

Good guys, come up and talk about two things that are basically impossible.

[Today's is the younger sister of Minke.] 】

Dressed very much like a science student, Tsuno Asai's rank was quickly downgraded to the rank of the civil science by Asai Yang.

However, whether it is civil science or science, they are inclined to rational thinking, that is, the kind that can speak well.

"Is there anything else I can help with?"

Looking at Asai Tsuno, who took the paper and pen and turned to leave, Asai Yang asked her with a little doubt.

"No, you don't."

When her figure was about to turn the corner, she answered Asai Yang in a very crisp and neat voice.

At this moment, the disadvantages of science students also show a little bit, that is, it is not interesting enough.

After changing into indoor shoes, Asai Yang slowly walked to the living room.

The living room was full of scraps of paper that had fallen on the floor, and there were many data records on the sheets, as well as diagrams and formulas that he couldn't understand at all.

"Well, let's play a game."

When Asai Yang was about to pick up one and take a look, Asai Tsuno, who was lying on the table, spoke.

Hearing such words, Yang Asai was a little stunned, he looked at his sister in a daze, looked at his sister who had been lying on the table to draw and write, and couldn't say a word for a long time.

"Ernie sauce, Bobo~

Let's play games with my classmates~"

Perhaps noticing that his words were wrong, or because Asai Yang had been staring at him for too long, after casually throwing a piece of waste paper into the already piled up paper basket, Asai Tsuno raised his head, looked at Asai Yang, and said such words.

I'm stupid, really. 】

At the same time as such thoughts sounded, Asai Yang remembered a sentence he had seen recently.

The IQ of a dog is about 40, the IQ of an ordinary person is about 100, a difference of 60, and a person with a high IQ can reach more than 160, so a person with a high IQ looks at you the same as you look at a dog.

Asai Yang, who actually didn't have much to do with his sister, could only nod lightly and walked slowly to his room.

"Remember to order a takeout."

As he opened the door to his room, Tsuno's voice came from downstairs.

Today, Asai Yang got a bobo from his sister, but he wasn't happy at all.

After taking out his mobile phone and ordering two takeaways at random, Asai opened his schoolbag and took out the game whose plastic seal had not been removed.

As soon as he stuffed this cartridge into the game console, Asai felt extremely unhappy.

[Anyway, I'm also a time-traveler from the Celestial Empire, and my IQ is considered to be the best among the people I've met in my two lives, so why was I comforted by my sister like a fool today. 】

The more he thought about it, the more angry he became, the more angry he became, and slowly walked out of the room, down the stairs, and to the table full of scraps of paper.

However, he didn't want to disturb his sister, so he walked in a quiet way, and with cotton shoes for the room, he could be said to have not made the slightest sound.

Focusing on the pile of formulas in front of him, Tsuno Asai really didn't notice the other party's coming.

After picking up several sheets of paper full of formulas and data from the ground, Asai read them line by line, sentence by sentence, word by word.

What does this formula mean, how did this number come about, and what is the meaning behind this symbol?

After looking at it for a while, these three questions appeared in Asai Yang's head.

After taking his eyes off the paper, Asai looked at Tsuno Asai, who was crumpling the A4 paper in his hand.

Such an action made Asai Yang even more confused.

If you write and draw blindly, you probably don't need to go through this step, so what Tsuno Asai writes and paints follows a certain internal logic.

Ding dong~

When Asai Yang picked up some drawings that were very non-standard drawings, such a voice sounded at the door.

"Old ......

The takeaway arrived. ”

Asai Tsuno, who originally wanted to shout loudly, said a word to him in a light tone after he found out that Asai Yang was downstairs.

"Well, can you teach me that?"

He put some of the pieces of paper in his hand back and asked Asai as he walked towards the door.

"Tomorrow, I'll teach it tomorrow when I'm free~"

After a moment of thought, a slightly strange smile appeared on Asai Tsuno's face.

The tone was slightly familiar to Asai Yang's ears, and it was clearly the tone he used to say this to her yesterday.

"Alas, forget it, I'm not as stingy as my brother, I don't even want to teach me how to cook, wait for eight or nine o'clock, I should finish drawing a perpetual motion machine by then."

When a strange expression appeared on Asai Yang's face, Asai Tsuno said to him.

[Perpetual motion machine or something is too nonsense.] 】

After hearing such a word, which was completely denied in his consciousness, Asai seemed to forget the question he wanted to ask next.

But even if he asked, in Asai Yang's perception at this moment, he felt that he had asked in vain.