I was exposed for adding my female boss to my group of female friends.

Moreover, its reaction after being poked was quite interesting; the pupa shook even more violently.

Chen Ya placed his hand on it; the touch was soft and yielding. The "pupa" immediately let out a strange cry, like the sound a cat makes when it is touched by an icy hand after eating overly cold fish jelly.

"Alas!"

It was a girl's voice.

Chen Ya leaned closer and asked, "Were you tied up inside?"

The pupa twitched twice.

Do you need my help?

The pupa began to move violently.

Chen Ya felt he understood and nodded, saying, "Okay, I'll release you. Move around a bit yourself."

Chen Ya grabbed the curtains and began searching for the head.

The curtain was wrapped up very tightly; I don't know how they managed it, it's impossible to untangle.

Unbutton one curtain to reveal another sheet, then unbutton another sheet to reveal a quilt.

As he peeled back the layers, Chen Ya became increasingly astonished.

There are still such awful people on the Kyoto University campus!

What a prank! Tying someone up inside the curtains!

If Chen Ya hadn't come and taken a look, who knows what would have happened to this person if he had been tied up inside like that overnight!

Body disposal? Kidnapping? Robbery?

Countless ideas began to surface in Chen Ya's mind.

But who would choose to commit a crime in a place like a tennis club classroom?

As Chen Ya tried to untie the curtains, the person wrapped up struggled violently, perhaps trying to cooperate with Chen Ya's actions, but Chen Ya felt that she would be better off not moving.

It's completely counterproductive.

In the end, almost like a struggle with the people trapped inside, Chen Ya finally managed to pull off the wad of cloth.

The person trapped inside that piece of cloth appeared.

She is a young girl.

The girl's long hair cascaded down her shoulders like a waterfall, the smooth strands covering her slightly raised forehead. Her eyebrows were like two soft swallows, and her nose was high and straight, very delicate.

She sat on a mattress with her two slender legs spread apart, her two white arms supporting her on the ground.

Her eyes, as clear as a still lake, were staring intently at Chen Ya.

This is a beautiful scene.

It would be even more beautiful if the girl wasn't just wearing a hollow camisole.

At least it won't be as awkward as it is now.

Chapter 310 Lu Aiai

The girl sat there blankly, her breasts half-covered, her hair slightly damp, her breath seemingly carrying a rich fragrance like orchid buds, and her jade-like skin covered with a layer of snow-white luster.

Chen Ya stared blankly for a long time, his mind filled with all sorts of nonsense, such as "thin silk threads reveal her fair skin, smooth and fragrant like snow in a handful."

"Have you seen enough?" The girl's cold words instantly brought Chen Ya back to reality.

"Oh, I'm sorry."

Chen Ya turned his back and asked with concern, "Who tied you up here? Should we call the police? Where are your clothes?"

This sentence was like a stone thrown into the sea, failing to elicit any response. After waiting for a long time, Chen Ya turned around and saw that the girl's face was flushed and her fists were clenched, as if she was sulking.

"Turn around!"

Chen Ya hurriedly turned his head, and after a while, the girl behind him seemed to have finally composed herself.

“I wasn’t tied here; I chose to be here.”

Chen Ya's eyes widened: "You said you tied yourself up?"

"No, I didn't tie myself up, I was..."

"Are you there?" Chen Ya asked tentatively.

"Sleeping."

"..."

After a moment of silence, Chen Ya gently turned around and whispered:

"If you're being coerced, blink, and I'll find a way to rescue you from Hurricane."

I don't have any!

……

It took Chen Ya a while to figure out that the girl named Lu Ai'ai was actually just sleeping there.

"So you were sleeping. I thought you'd been kidnapped," Chen Ya laughed. "Why didn't you tell me?"

By this time, Lu Aiai was already dressed. She wore a simple white shirt underneath, black skinny jeans on the bottom, and a white lab coat that she didn't know where she got it from.

However, she already had a great figure, and wearing the loose white coat made her look even more elegant, giving her a slender and delicate appearance.

“I…I…that kind of thing is in the past, I don’t mind anymore,” Lu Ai’ai said, seemingly changing the subject. “So, which department are you in? I’ve never seen you before.”

Chen Ya smiled and said vaguely, "I hang around the school every day, haven't you seen me before, junior? Maybe you don't go out much."

"Junior sister..."

Hearing this address, Lu Aiai blushed slightly again. Chen Ya noticed that this girl blushed easily.

Chen Ya didn't want to reveal so quickly that he wasn't actually a student at Peking University. Having the identity of a student would always make things easier. If he told the other party that he was just a former librarian, they might not lend him the money.

It's good that Lu Ai'ai doesn't know him—in Chen Ya's eyes, this Lu Ai'ai is probably a student who doesn't like to study much.

After all, anyone who has been to a library should recognize themselves.

Lu Aiai stood with her hands on her hips, looking at him suspiciously, and asked, "Then what are you here for?"

“Oh, I’d like to visit our school’s tennis club,” Chen Ya said, making a swinging motion. “I’d like to come and practice tennis every night for the next month, starting today.”

When he said this, he tried hard to make his expression serious, with a faint smile at the corner of his mouth—from experience, this kind of expression is very attractive to girls.

However, Lu Aiai stared at him suspiciously, her expression remaining unchanged.

Chen Ya's scheming just now was like throwing a flirtatious glance at a blind man.

“You want to practice tennis, right? Okay, that’s a good attitude,” Lu Ai’ai nodded. “However, classmate, you need to change the way you speak. You should consider how convenient it is for others. If you use this way of speaking in society, you will run into trouble.”

"..."

This girl clearly looks younger than me, as if she hasn't even graduated from university, but she speaks in a way that sounds like she's old.

Chen Ya felt that it was ridiculous that she had lectured him about social issues.

"But it's not that I won't agree. The tennis club is closed today, so there's no one here tonight. If you need to use the court, you can use it for a bit. But if you want to come in the future, you'll have to come after 9 o'clock every day, because everyone trains very hard."

Chen Ya thanked him and then asked, "Are you the president of the tennis club?"

“No…but you can take what I said as the tennis club’s agreement.” Lu Aiai turned her face away and combed her hair. “The tennis court lights go out at 10 p.m., so please hurry.”

Because there was no one else, no one could practice with Chen Ya, so Chen Ya could only practice serving by himself.

He played with a few balls in his hand for a while, constantly having to retrieve them, so his efficiency wasn't very high. Lu Aiai watched him from the sidelines with her arms crossed, occasionally yawning.

He wanted to ask Lu Aiai if the tennis club had a ball machine, but seeing that Lu Aiai didn't seem to like him much, and considering the awkward situation they had been in before, he was a little embarrassed to ask her.

After playing a few balls, Lu Aiai suddenly spoke up.

Have you ever played tennis before?

Chen Ya stopped racket and said, "No, this is my first time playing tennis."

"Your serve is fairly standard, but it's a bit awkward," Lu Aiai commented. "Actually, your serve could be a bit more crisp and clean, because you're a boy and have more strength, and your current serve is a bit like a girl's."

"..."

The reason why Chen Ya's serving motion is like a girl's is, of course, because he has only ever seen Gu Yuqing play.

"Make it quick and clean, is this how you swing the racket?" Chen Ya asked. "Apply the force like this, and then swing the racket?"

He demonstrated a few movements, and Lu Aiai frowned and said:

"From the perspective of fluid dynamics and anatomy, to achieve the highest initial velocity in a tennis ball, you need to engage your brachioradialis, deltoid, and pectoralis major muscle groups. Feel it yourself and see if you're engaging the right amount of force."

Chen Ya was somewhat stunned. If he didn't have some prior knowledge, he wouldn't have been able to understand what Lu Aiai was saying.

He tentatively moved his right arm, feeling the muscle groups Lu Ai'ai had mentioned, and seemed to understand what she meant.

Although Lu Aiai's words were helpful, her way of expressing them was a bit unpleasant.

Chen Ya also said in a professional tone:

"I've seen a tennis player who uses her wrist muscles, core muscles, and lower limb muscles when she serves. Is it possible that this method is more efficient?"

After listening to Chen Ya's words, Lu Ai'ai did not show the look of admiration that Chen Ya had expected.

Instead, she let out a long sigh and pressed her nose and brow, looking quite helpless.

"Previously, I conducted an experiment on the muscle groups used in powerful tennis serves. Subjects were informed in advance of the intended landing point range for their powerful serves, and surface electromyography (EMG) signals were collected during the serve using the American wireless DELSYS system. Simultaneously, two high-speed cameras recorded the action and the serve's landing point, while also measuring ball speed. The action with the highest ball speed at the inside, middle, and outside corners, with all three speeds being consistent, was selected for analysis. The analysis phase was the striking phase, which began with the 'back-scratching' motion and ended with the ball hitting the target. The analytical index was the root mean square amplitude (RMS), and one-way ANOVA was used in SPSS software to analyze the differences in muscle force characteristics during the striking phase at the three landing points. P < 0.05 indicated statistical significance, and P < 0.01 indicated highly significant significance… The final conclusion was that there were no significant differences in the force exerted by other relevant muscles in athletes' powerful serves at different landing points."

Chen Ya was momentarily confused by Lu Ai'ai's words, and his mind began to wander halfway through the conversation.

"Excuse me, could you please explain the conclusion in a simpler way?"

“Didn’t I just say that?” Lu Aiai said, “There is no significant difference in the amount of force exerted by other related muscles when serving with a powerful shot at different landing points. In other words, the main factors that determine the landing point of your shot are the three muscle groups I just mentioned.”

She seemed very professional, so Chen Ya humbly asked, "Then, how should I apply force to achieve the most standard result?"

Lu Aiai frowned and thought for a moment, then said, "This is your first time playing tennis. I originally wanted to let you experience the sport firsthand and form a basic understanding before delving into it. This also aligns with the general principles of learning, but..."

"but?"

"But you are the first person in all these years who has listened to what I just said and still has the curiosity to talk to me, so I'll just tell you about the exercise in scientific terms."

For a fleeting moment, Chen Ya suddenly felt a little sorry for this girl.

She has the personality of a mad scientist.

However, he could understand how her classmates felt.

Lu Aiai said, "The powerful serve in tennis is an explosive action, which basically follows the principle of prioritizing the use of large muscles. The amount of muscle mobilization in the kinetic chain varies, but the large joints are always mobilized first. Under certain circumstances, the amount of muscle recruited can reflect the amount of force exerted by the body in the hitting process... Therefore, when serving a powerful serve with different landing points, the basic movement is the same, and the power is transferred from bottom to top and in the final 'whipping' motion, but the specific mechanism still needs further research."

After saying so much in one breath, Lu Aiai was a little thirsty, but she still asked with concern, "Did you understand?"

"I understand about half of it, but you don't need to explain any further."

Lu Aiai wasn't annoyed at all. Instead, she nodded seriously and said, "You've got a pretty good understanding, which is much better than the other students in the tennis club."

"Uh, have you considered that it might not be a problem with their comprehension, but rather... uh, a problem with how you express yourself?"

"What did you say?"

"nothing."

Chen Ya recalled Gu Yuqing's actions and compared them with what Lu Aiai had said, which was "something with a very strong theoretical basis," and suddenly had an epiphany.

Gu Yuqing's physical condition is different from his.

Gu Yuqing's strength was much less than his, and she also had a lot of extra weight on her chest, so her movements were definitely not the most efficient.

To play tennis well, you can't simply copy Gu Yuqing's movements; you need to optimize them according to your own physical condition.

Having thought this through, Chen Ya silently raised his racket.

"boom!"

The tennis ball was hit with great force and, in the next second, it was already on the net at the far end of the opposite court.

Chen Ya walked over, stretched out his finger, and with great effort, pulled out the tennis ball that was deeply embedded in the barbed wire.

If the court hadn't been surrounded by wire mesh, who knows where his shot would have gone.

From the side came Lu Aiai's applause.