Traveling back thirty years to Conan, intercepting Princess Eri

"correct!"

Just as he was about to step into the classroom, Kogoro Mouri, who was walking at the front, suddenly turned around sharply and almost bumped into Shuichi Hayashi behind him.

Where are we planning to go for summer vacation?

"It's not even summer vacation yet," Eri Kisaki said, looking speechless. "Isn't it a bit too early for you to ask these questions?"

"Don't forget, you just promised Mr. Murakami that you would study hard," Lin Xiuyi patted his friend on the shoulder and reminded him, "If you fail the final exam, do you still want to go out and play? You'll have to stay at school for extra classes then."

"Ugh, more studying..." Kogoro Mouri scratched his head in frustration. "When will I ever graduate from this damn school?!"

“After graduation, you’ll have to go to work,” Lin Xiuyi said with a laugh. “At that time, you’ll definitely miss the leisurely days when you were in school.”

The three of them walked into the classroom, chatting and laughing.

Lin Xiuyi had just put his schoolbag on the table and hadn't even sat down when he felt his left arm being pulled. He turned around and saw Yukiko looking at him expectantly.

"Shuichi, you should have time during summer vacation, right?"

Upon hearing her question, Eri Kisaki, who was organizing books, immediately perked up her ears and unconsciously stopped what she was doing.

"I don't have any plans yet," Lin Xiuyi replied truthfully, "but I'll probably go out for a few days."

“Why don’t we go to Takasaki together?” Yukiko suggested. “It’s the village where I filmed my movie last time. How about we go there for a few days?”

“Last time we went there, Shuichi almost died there because of the earthquake!” Eri Kisaki stood up abruptly to object.

“Earthquakes are a low-probability event, and you don’t encounter them every time,” Yukiko retorted, unconvinced.

Seeing the two start arguing again, Lin Xiuyi quickly stepped between them: "Wait, why are you going to that village again? There's nothing fun there."

“What can I do?” Yukiko sighed dejectedly, looking pitiful. “Last night I received a call from the production crew saying we need to go there to reshoot some scenes. It’ll take at least half a month in total. My summer vacation…”

Lin Xiu opened her mouth, but before she could speak, Kogoro Mouri interrupted, "If we go, can we get a bit part in the film crew?"

“If there are any minor roles, that should be fine,” Yukiko tilted her head and thought for a moment. “I remember that for similar roles, they usually just ask the villagers for help… If you’re willing, that should be possible too.”

"In that case, of course we have to go!" Kogoro Mouri exclaimed excitedly, almost knocking over the desk next to him.

"Hey, I haven't agreed yet," Lin Xiuyi said irritably, grabbing his friend's shoulder. "When did you become interested in making movies?"

“It’s not that I’m interested, it’s Ruri,” Kogoro Mouri scratched his head sheepishly. “When I was on a date with her before, we talked about Yukiko making movies… Ruri seemed very envious, so I thought if I had the chance, I’d let her try it too.”

"Look," Lin Xiuyi said, looking to Fei Yingli for her opinion.

Since it involved her best friend, Eri Kisaki was less resistant. After hesitating for a moment, she finally nodded slightly.

"Haha, then it's decided!"

Kogoro Mouri clapped his hands excitedly.

"This summer vacation, let's go to the village where Yukiko filmed her movie! I'll call Ruri this afternoon to tell her the good news. When she finds out, she'll definitely... hehe..."

As he spoke, the boy drifted into a beautiful fantasy, a silly grin spreading across his face.

"Hey," Yukiko puffed out her cheeks and glared at him with dissatisfaction, "Although going to Takasaki was my suggestion, I only said I was going with Shuichi! I didn't say I was going to bring you guys along!" "Alright, it's more fun to go out with everyone," Shuichi Hayashi said with a smile, trying to appease her. "When we get back this afternoon, we'll also ask Midori if she's free."

At this point, he turned his head and looked at Akane Koizumi, who was sitting in the last row by the window.

"What about you? Are you going to go out and play with us during summer vacation?"

Akane Koizumi did not respond. She was frowning, staring intently at the test paper in her hand, her lips moving silently as if she were calculating something.

Lin Xiuyi walked over curiously, and when he saw the contents of the test paper, his eyes widened in surprise: "You!"

Wow, 6 points!

Kogoro Mouri, who had somehow appeared nearby, let out an exaggerated shout.

"Is your test paper different from ours? Is it graded on a ten-point scale instead of a percentage?"

"Didn't Shuichi tutor you every afternoon?" Yukiko chimed in, her face full of disbelief. "How could you still get such a bad score?"

“What can I do…” Akane Koizumi slumped on the table with a look of utter despair. “Math is too hard… I hadn’t studied math much before coming here to study.”

"Weren't the math tests handed out yesterday afternoon?" Eri picked up the test paper on the table and examined it carefully. "You haven't corrected the mistakes on it! This is last night's homework."

"I forgot……"

Akane Koizumi muttered something under her breath, then reached out and gently shook Lin Xiuyi's sleeve.
"Can I borrow your test paper to copy? The new math teacher isn't as strict as Takeshita, but he's still very strict. I've already been scolded by him several times, and I don't want to get yelled at again..."

Lin Xiuyi sighed, took out his perfect score test paper from his schoolbag, and handed it over.

In fact, every afternoon at the izakaya, he would take some time to tutor Akane Koizumi and Midori Orikasa.

Midori Orikasa is hardworking and makes rapid progress in her studies.

Akane Koizumi is different. In terms of academic foundation, she is not only inferior to Midori Orikasa, but even to Reiko, who is still in elementary school.

In addition, the fact that she always comes up with some whimsical ideas while studying further increases the difficulty of her studies.

I wonder if her witch mother only taught her magic at home and never taught her these ordinary subjects?
Akane Koizumi took the test paper and hurriedly copied it down.

Lin Xiuyi stood beside her for a while, then suddenly pointed to the test paper: "What is this?"

"...Main = 6?"

Akane Koizumi tilted her head and read aloud what she had written with a puzzled look on her face.

Immediately, her eyes lit up.

"I never imagined mathematics could be used to prove the mystical! Lord is God, God equals six, God is the Trinity, which is three sixes..."

The apprentice witch's voice grew increasingly agitated.
"666 is the number that represents the devil. So God equals the devil! I really am a genius."

Seeing Akane Koizumi's expression as if she had discovered the truth about the occult, Lin Xiuyi, with a blank face, gave her a heavy tap on the head.

"That's just a mathematical symbol! You copied it wrong! Don't overthink it, math and magic have absolutely nothing to do with each other!" (End of Chapter)