My girlfriend is actually myself.

Chapter 45 Brother, you've changed!

Japanese high schools have uniform requirements for the teaching progress of each class. Even if one student is in class A and the other is in class D, there is a lot of overlap in their homework. If there is no overlap at the moment, then there will be overlap in the next few days.

Fortunately, the teachers in Class A and Class D are different, so even if we write the same answer, the teacher won't notice.

The only difference is that, instead of two bodies doing one assignment, now there are two.

Why do he and she each have to do two assignments? Is that reasonable? Shiraishi Saku discovered a major loophole in the education system, but unfortunately he couldn't report it and could only accept it helplessly.

They still divided the work and cooperated, with each body responsible for half of the subjects.

Previously, when doing homework, the girl's body would always extract subject knowledge from his mind, consuming his computing power and causing his efficiency to decline.

Now, more than half a month has passed, and the girl's body is accessing academic knowledge less and less frequently. The knowledge she used before has already been stored in the girl's brain.

Shiraishi Shuo twirled his pen, recording his new discovery.

He and she were like two computers connected to a private network, each possessing its own computing power and data storage space.

He has the highest level of authority, while hers is one level lower. He can unilaterally suspend her data access and remotely control her programs.

Besides this, there's one more thing.

Shiraishi Saku turned his head to look at the words written in the girl's handwriting. Although their handwriting was different, that difference was a slight adaptation to their different bodily functions, and their handwriting was still very similar.

When she worked at the convenience store, the way she operated the cashier was basically the same as his.

He and she shared not only brain memories, but also muscle memories.

Muscle memory is an easily overlooked but very important function. The saying "practice makes perfect" refers to muscle memory.

Patients who have been bedridden for a long time may forget how to walk; athletes who have not participated in training for a long time need a lot of practice to regain their dexterity; and adults who pick up their childhood toys need to try several times to regain their childhood skills.

Many movements cannot be performed simply by knowing how to do them; they require a lot of practice to allow the muscles to form or regain memory.

The girl was less than a month old and should have no muscle memory, but in fact, she was able to control her body freely on the day she was born, and had no problems walking, dressing and talking.

This undoubtedly proves that the female body possesses the muscle memory of the male body.

The question is, is this muscle memory something that comes with the split and is disconnected after the split, or is it shared in real time?

Shiraishi Shuo's pencil spun faster and faster, the afterimage of the mechanical pencil tracing a circle. For the past two weeks, he had been spinning his pencil whenever he had a spare moment, successfully transforming himself from a novice to a seasoned pen-spinning expert.

This is the muscle memory that has been newly formed in the past two weeks.

He looked at the girl, who raised the mechanical pencil, the tip spinning between her slender fingers, slower than the boy's, but just as skillfully. The slower speed was because the girl's fingers weren't strong enough.

After spinning for half a minute, the girl stopped using the mechanical pencil, picked up the small mirror next to the table, and handed it to Shiraishi Saku. It was a gift from her younger sister.

In the small mirror was a small comb. Shiraishi Saku picked it up, stood behind the girl, and skillfully combed her hair. There was a hint of awkwardness in his skill, like someone who only braids their own hair suddenly braiding someone else's—the touch felt strange. This was because the feel came from the girl's body, while the instruction came from Sakura Nene.

Muscle memory sharing is real-time; he can give it to her, and she can give it to him.

Putting away the comb, Shiraishi Saku sighed at the terrifying nature of twins.

This effect is the same as the Shadow Clone Technique, and you can experience points simultaneously without dispelling the clones.

Unfortunately, there are too few clones.

This ability seems more suited to skill-based jobs, such as sports or handicrafts.

Shiraishi Saku dared not imagine how quickly they would progress when he and she practiced a sport together.

Should we find a technical practice opportunity to try it out?

But upon closer reflection, there's no particular need to focus on this skill. The social status of craftspeople and athletes isn't high, so there's no value in deliberately studying it. However, if someone is interested, they can learn it for fun.

After finishing the experiment, Shiraishi Saku continued doing his homework.

Although the homework was divided into two parts, since it covered the same knowledge points, it didn't take longer to complete.

It can be easily completed in an hour.

"Dinner's ready!" My sister's voice rang out from downstairs.

Outside the window, the sunset clouds reflected the brilliant glow of the sunset.

After dinner, it was game time. Having already played through all the split-screen two-player PvE games, Shiraishi Saku and Yukimiya Natsune moved into the PvP arena. He used the computer upstairs, while Yukimiya Natsune used the PS5 downstairs, using cross-platform multiplayer.

What was originally a player-versus-player game with wins and losses was turned into a hack-and-slash game by them.

Unfortunately, because the computer is upstairs and the TV is downstairs, they can't play games on the sofa like before.

Sakura Nene watched for a while in the living room, then went to Shiraishi Saku's room for a while, sighing at how time had passed and how things had changed.

Since Sister Yukimiya came, I haven't seen Brother play any 3D adult games.

Back in her room, she closed and locked the door, pulled out a comic book from under the bed, and sprawled on the beanbag chair to read it.

Time flew by, and the alarm clock on her bedside table, just like the one her brother used, went off, reminding her that it was time to take a shower.

She went to the bathroom, filled the tub with water, set the temperature, and waited for the water to heat up. She then tidied up the house briefly and worked up a light sweat.

Carrying her change of clothes, she headed to the bathroom, calling out to those downstairs, "I'll be done soon, Yukimiya-neechan, please get ready!"

"Understood." Shiraishi Saku's voice came from the bedroom.

"Why is it my brother who's answering?" Sakura Nene muttered as she walked into the bathroom.

After finishing their game, Shiraishi Saku and Yukimiya Natsune closed the game. The younger sister, who doesn't lie, said she would wash up quickly and would definitely resolve the issue swiftly.

Sure enough, less than half an hour later, the girl came out of the bathroom and downstairs. Her face was flushed, her exposed skin was snow-white, and she was steaming with heat.

Like freshly baked pastries.

Ningninggao walked into the kitchen, took a bottle of fresh milk, tilted her head back and gulped it down. Her usually lively pigtails were now quietly draped over her back.

"Would you like some?" The girl noticed Yukimiya Natsune's gaze and handed her the milk.

Holding the milk the girl gave her, Yukimiya Natsune went upstairs to the second floor. She took a sip, but the icy feeling made her a little uncomfortable; the milk, freshly taken from the refrigerator the night before, was too indulgent for her.

She gave the milk to the boy and went into the bathroom.

After rinsing off, I stepped into the bathtub, the warm water bringing a sense of comfort. There was no bath soap in the tub, as the girl had never used a bathtub before, so I showered quickly today.

So this is the day today.

After soaking for ten minutes, Yukimiya Natsumi got up and left, and Shiraishi Saku took his place in the bath.

At 10:30, the alarm clock rang with a crisp tone, and Shiraishi Saku and Yukimiya Natsumi crawled into bed.