Finding a key chord from so many chords is like finding a needle in a haystack.

Then, the two of them subconsciously looked at Ai.

Now that the other party has found the problem, there must be a solution!

Yuzuru stood quietly to the side, arms crossed, watching the show.

Ai didn't want to talk. She silently took out her phone, which had a cute bunny case, from her pocket and snapped a few photos of the scattered song cards.

After doing all that, she took out a multi-purpose capsule, released a laptop from it, connected it to her phone, found a relatively clean spot in the room, sat down steadily, and started typing rapidly with her chubby little hands.

Kogoro Mouri and Ginjiro Toyama stood aside, dumbfounded as they watched Ai Haibara's series of actions.

"Yuzuru, what's wrong with her?"

Ginjiro Toyama asked, puzzled.

Yu Sheng Nan lowered his arm and asked in return, "Uncle Yuanshan, do you know that your police force is actually far behind the times?"

"Do...do you have one?"

Yes, there are many.

"We've entered the information age, and we can no longer solve cases using those outdated methods. We need to keep up with the times, like in this case..."

Yuzuru walked to Ai's side, looking at the constantly flashing images on the computer screen, and explained, "Ai plans to use advanced image recognition technology and big data analysis to investigate the direction and shape of the bloodstains on the karuta cards at the scene, so as to reconstruct how the karuta cards were arranged at the time of the crime."

"There's such a way? That's amazing!"

Kogoro Mouri looked completely bewildered.

Although I couldn't understand it, it sounded impressive.

"Yes, technology is developing so fast these days. Although we police use some technological means in our daily investigations, we never expected to use high technology so thoroughly."

Ginjiro Toyama was equally shocked.

There was both amazement at the power of technology and reflection on their own methods of handling cases.

Without looking up, Ai said while operating the computer, "It's just some simple program applications. If you're willing to spend the time to learn, you can master it too."

In fact, she developed this program independently based on her own research. There is no similar software on the market. She said this simply because she was lazy and didn't want to be questioned too much.

As the program ran, some analysis results gradually appeared on the screen.

Yuzuru gazed intently at Ai, unable to look away.

This haughty little girl possesses a unique charm, a radiance born from a blend of wisdom and composure, a brilliance unique to a genius young scientist.

Ai-sensei is starting her class.

"Done!"

As Ai pressed Enter hard for the last time, she gracefully turned the computer screen around to face everyone.

The previously chaotic song cards have now been neatly arranged into two columns on the screen.

Just then, Yingying brought a branch of moderate thickness from the yard.

Ai took it, then placed the computer running the analysis program on the table next to her. Then, she naturally put one small hand behind her back, and with the other small hand holding a twig, she tapped the table twice.

Bang bang~

Little Sunflower Classroom is now open.

Seeing this scene, Kogoro Mouri and Ginjiro Toyama straightened their chests as if out of their own control, a strange sense of familiarity welling up in their hearts.

It felt like seeing my teacher again during my student days.

But they couldn't help but wonder, the person giving the serious lecture in front of them was clearly just a child!

Ai cleared her throat and said seriously, "Don't look at me, look at the screen!"

Everyone's eyes immediately focused on the screen.

“The karuta cards are now divided into two columns,” Ai explained, pointing to the screen with a twig. “The ones on the right are the ones that got blood on them because they were placed on the floor, while the ones on the left are clean, along with the ones that were mixed in later.”

Kogoro Mouri quickly replied, "I see!"

Ginjiro Toyama nodded in agreement: "I understand, I understand!"

Hanyu Nana raised his hand and asked, "Ai-sensei, how would you find the card that Mr. Yajima is holding from these cards?"

Ai glared at Yuzuru, thinking, "You're such a troublemaker."

She continued, "Look, everyone, there are bloodstains on these song cards, not only from splattering but also from wiping."

She pointed to several card games on the screen with a twig, "Based on the distribution of bloodstains and the direction of wiping, we can deduce the actions the murderer took when he drew the card games. The key card game, because it was pulled away forcefully by the murderer, will have slightly different bloodstains than the other card games."

Kogoro Mouri leaned closer to the screen, observing carefully: "But these bloodstains all look pretty much the same."

Xiao Ai sighed, feeling that this was the worst class of students she had ever taught.

She tapped a few times on the keyboard, and a magnified comparison image of bloodstains on a song card appeared on the screen. "Look, the bloodstains on this suspected key song card have obvious drag marks at the edges, which are different from the natural edges of the bloodstains on other song cards."

Ginjiro Toyama suddenly realized: "Then will we know which karuta it is next?"

Ai nodded, then continued operating the computer while standing on tiptoe: "I've enhanced the clarity of the karuta image. Based on big data analysis, we've concluded that the card the deceased was holding before his death was..."

Teacher Ai's fingers danced rapidly across the keyboard.

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