When their lovely childhood friend returned, they were all in a panic!

However, Bai Yu didn't know that the girl sitting on the desk looking at him was Lu Yuxin.

He just thought that it might be a student from some unknown class who happened to be passing by the old classroom and heard him singing inside.

And this guitar just happens to belong to her.

"Hmm...it works pretty well."

Bai Yu smiled awkwardly, his hand instinctively touching his nose.

"However, I don't think you played it particularly well."

Lu Yuxin got off the table and walked towards Bai Yu, who was standing by the window.

Her sneakers made a distinct sound in the quiet old classroom.

When she got to Bai Yu's side, Lu Yuxin picked up the guitar that Bai Yu had put down and sat down at the table next to her.

She didn't choose to sit on the windowsill like Bai Yu.

Simply because they don't have Bai Yu's height.

Lu Yuxin picked up her guitar and glanced at Bai Yu.

"The song you just played was 'Old Boys,' right?"

Upon hearing this, Bai Yu immediately nodded.

"Yes, you can also play the guitar?"

After saying that, Bai Yu regretted it a little.

These guitars belong to other people, so why would I need to ask her if she can play them?

Lu Yuxin didn't react much; she simply placed her slender fingers on the guitar strings, ready to press chords.

"Yes, but I'm not very proficient at it because my hands hurt when I practice."

After she finished speaking, Lu Yuxin looked up at Bai Yu.

"Doesn't your hand hurt?"

"Uh... a little bit, but I'm used to it."

Bai Yu glanced silently at her fingers.

It's very rough, and there's a thin layer of calluses on the fingertips.

There are also faint guitar string marks on the cocoon.

"You've got calluses, haven't you?"

Lu Yuxin chuckled softly, pressed the chords, and began to play.

When the intro to "Old Boys" started playing, Bai Yu was quite amazed.

Clearly, the girl in front of him was far more skilled than he was.

What's more, she didn't even look at the guitar tabs, yet she played them effortlessly.

After playing a few simple sections, Lu Yuxin stopped.

"Is that okay?"

"It sounds so good!"

Bai Yu sincerely praised.

"How about I teach you some tips? To be honest, you've always played pretty badly."

Lu Yuxin chuckled softly, her face looking exceptionally beautiful in the twilight.

Bai Yu wasn't infatuated, but she was a little surprised.

"Now that you mention it... you've been able to hear my guitar the whole time?"

"That's for sure, because of this."

Lu Yuxin nodded and pointed to the half-open window.

"The sound came from here."

"what?"

Bai Yu twitched the corner of her mouth.

Could this sound really travel throughout the entire art building?

If I've been playing guitar for half a year, wouldn't people have been listening to me all along?

"Do you play all by yourself?"

Lu Yuxin put the guitar aside, placed her hands on the table, and started chatting with Bai Yu.

"Um......."

"I heard a girl singing the day before yesterday."

"That's my classmate. He secretly followed me here."

Bai Yu touched the back of his head and smiled.

He naturally knew that Lu Yuxin was referring to Mu Anqi.

"Oh...you're not here today?"

Lu Yuxin turned her head to look at Bai Yu, her eyes asking a question.

"No... but besides her, there's another 'friend'."

Bai Yu said slowly, turning her gaze to the half-open window outside.

"When I used to play guitar here, there was always a piano sound... If you heard my guitar, you should also be able to hear that piano sound."

"But he didn't come today, so he probably didn't come."

After saying this, Lu Yuxin's eyes were full of curiosity, and there was a hint of strangeness in them.

"Friend? Do you know her?"

"I don't know him."

Bai Yu shook his head.

"Then why do you call her a friend?"

"I think it's not so boring to practice guitar alone with that piano music playing."

Bai Yu smiled and then looked at Lu Yuxin.

"Are you taking your guitar with you?"

"Don't take it with you, you can keep playing. But there's something I'm curious about."

Lu Yuxin stretched, her face showing a hint of languor.

The way she looked at Bai Yu became even stranger.

"Your friend didn't come, and now someone else has suddenly appeared here. Don't you find that strange?"

Upon hearing this, Bai Yu was taken aback.

It was only now that he realized what was happening.

He looked at Lu Yuxin's face and quietly asked.

"You wouldn't happen to be...."

"Hmm, your friend."

Lu Yuxin spread her hands, as if to say, "You only realized it now?"

Upon hearing this, Bai Yu opened her mouth.

No wonder that "friend" didn't come today; it turns out he came to arrest me.

"Nice to meet you. By the way, your cookies are delicious."

Lu Yuxin chuckled and extended a hand, gesturing for Bai Yu to shake hers.

Bai Yu was slightly taken aback before quickly reaching out to shake hands.

As soon as they shook hands, Bai Yu could feel how slender her hands were.

No wonder she plays the piano.

Lu Yuxin was also a little surprised, and she gave Bai Yu a deep look.

With such rough hands, it's no wonder he's been able to keep playing the guitar.

"Thanks."

Bai Yu responded politely to the compliment.

But now he feels very uncomfortable.

Bai Yu felt quite comfortable if that friend stayed by her side in the shadows.

After meeting in person, that pleasant feeling was gone.

"Would you like to visit my music room? That's where I usually play the piano."

Lu Yuxin got down from the table and spoke softly.

After only a moment's hesitation, Bai Yu nodded.

Normally, the sound of her piano playing is slightly tainted by the wind.

Being able to hear a live version right now would be absolutely wonderful.

After thinking it over, Bai Yu put the guitar away.

Then close that half window and restore the old classroom to its original state.

After doing all this, Bai Yu followed Lu Yuxin and left the old classroom.

"Aren't you afraid I'll kidnap you?"

Lu Yuxin suddenly turned around and said with a smile.

"Uh... if we're alone, you're the one who's probably scared."

Bai Yu's lips twitched.

This is the confidence he gained from practicing martial arts since childhood.

The door to the old classroom had barely been closed when it was opened again.

Panting heavily, Mu Anqi carried her violin bag and ran all the way over.

Phew~ Finally, detention is over...

When Mu Anqi walked into the old classroom, everyone was stunned.

Where is Bai Yuren?

The window was half closed, and the guitar lay quietly in the corner.

It was as if no one had ever been here.

Mu Anqi scratched her puzzled little head.

This doesn't make sense. Logically speaking, Bai Yu should come to this old classroom after school.

Why can't I see anyone now?