I'm writing a fictional immortality script in Detective Conan.

"Seriously, Chikage, why are you still laughing!"

Yukiko Kudo angrily poked at the cake, then grumbled as she pulled at Chikage Kuroba, who was laughing hysterically beside her.

"Hahahahaha!" Kuroba Chikage tucked her reddish-purple wisps of hair behind her ear, leaned against Yukiko's shoulder, and chuckled softly, "Because Yukiko, your clueless look is really cute!"

"Neither Toichi nor I expected that you still haven't noticed after all these years!" As she spoke, she recalled the stiff smile that froze on Yukiko's face when she opened the car door, and quickly covered her mouth to suppress her laughter.

"It's not that I'm slow-witted, it's just that the things involved here are very complicated!"

The heat that she had managed to suppress on her face returned, and Yukiko Kudo clenched her fists, making a certain decision.

She first looked around to make sure the two gentlemen were talking in the study and there was no sign of them coming out, then leaned close to Kuroba Chikage's ear and whispered, "I'll tell you the reason quietly, but don't tell anyone else."

“OK, no problem~” Kuroba Chikage nodded vigorously, spreading her hands to her ears in preparation.

"Actually, at first, I had doubts about the relationship between the teacher and Yusaku, but later..."

As old memories resurfaced, Yukiko Kudo's thoughts returned to that awkward afternoon.

Twenty years ago, at the age of 17, she was given the title of Princess Teitan and went on a cultural exchange study trip to Kyoto with her classmates, arranged by the school.

The ambiguous autumn atmosphere paints Kyoto in a vibrant crimson, making it the perfect time to experience its culture and customs, and a love song that inspires young men and women to meet.

In order to create an opportunity for Kogoro Mouri and Eri Kisaki, she deliberately arranged to meet the two of them, and then made an excuse to leave first, but accidentally forgot the way back.

"I was struggling with how to get back without being late when I suddenly saw a familiar figure from behind."

Yukiko Kudo lightly bit her fork, then shyly pulled up her phone's search page. "That person really looks exactly like Toichi-sensei, practically identical! I was so happy at the time, I didn't think too much and just grabbed him and chatted with him for ages!"

"As a result, after I had talked for a long time, the famous swordsman, Mr. Okita, told me that he had mistaken me for someone else!"

Hearing Yukiko Kudo's whirring like a kettle boiling over, Chikage Kuroba took the phone.

"Wow, this is amazing!" She exclaimed in astonishment after just a casual glance at the photo. "It looks so much like him, so much so that at first glance I thought it was the character from The Lost Tomb 1!"

The more she looked at the related news, the more shocked she became. Kuroba Chikage zoomed in on the latest report for Yukiko: "And that's not all, his son, the sixth generation Okita Souji, also looks like Shinichi and my Kaito!"

"Right!" Finally having someone to confide in, Yukiko Kudo felt as if she had let go of a long-standing burden, and her body and mind felt relaxed. "After this incident, I dare not recognize people casually anymore! Just now, I can't exactly say to Yusaku, 'Honey, you're handsome but you have an average face' or something like that."

"Hiss..." Kuroba Chikage gasped, then suddenly turned serious and analyzed with an air of importance: "Do you think it's possible that Touichi and the others are actually long-lost triplets?"

"hiss!"

Yukiko Kudo also gasped. This guess was both incredibly far-fetched and somewhat close to reality.

"Yusaku once said that."

She picked up her teacup, took a sip of water to calm herself down, and slowly expressed her opinion:

"Eliminate all the impossible, and what remains, however improbable, is the truth."

Inside the reception room, the two ladies, their pupils dizzy with shock, enjoyed tea and snacks, planning to add another person to the Kuroba family's genealogy.

In the study filled with the rich aroma of coffee, after the brothers finished their long-awaited greetings, Yusaku Kudo stated the purpose of his visit directly.

"Brother, how much do you know about that organization? I remember that the reason why Father and Mother divorced was because of a certain organization, right?"

When the organization is mentioned, the image of a clever, quirky crow with an old man's tone immediately pops into Black Feather Thief's mind, accompanied by its cawing.

He paused slightly, lowered his eyes, and continued adding sugar cubes to his younger brother's plate: "Why did you suddenly bring this up? Did the organization send someone to contact you?"

“No, they’re still the same.” In front of his reliable older brother, Kudo Yusaku shed his calm and composed exterior, revealing a worried expression. “It’s my son, Shinichi. He was attacked by the organization.”

"What?! How is Shinichi now? Is he alright?"

Yusaku Kudo took out a photo that was about the size of a copy of the one he had obtained from Professor Agasa and placed it on the table: "There is no danger to my life, but due to the effects of an unknown drug, my body has reverted to that of my childhood self."

Magic! This is amazing magic!

Forcing himself to forget those brainwashing messages, Kuroba Toichi thoughtfully tapped on the table, sorting out information from the normal world:

“I don’t know much about the organization either. My first contact with them was seven days after my father’s death. A group of men in black, claiming to be ‘family,’ knocked on my door at dusk, saying they were delivering condolences for that gentleman.”

Yusaku Kudo raised an eyebrow curiously: "The main family?"

He and his brother were separated when they were young due to their parents' divorce, and he had little opportunity to learn about his father's connections and blood ties.

"They claimed to be from the same clan, but in the end they never revealed their surname."

Hei Yu Daoyi got up and walked into the depths of the study. When he returned, he was holding an old thread-bound book. The old, yellowed cover was inscribed with the five characters "Hei Yu Clan Genealogy" in elegant handwriting.

He turned to the first page and read the opening lines: "From this day forward, I have been favored by my master, granted the surname Kuroba, and given fertile land and a mansion..."

"The main family here refers to the family that separated from our branch and changed their surname to Kuroba."

Kudo Yusaku flipped the page. The family split up not long ago, only a hundred years ago. Shinichi and his generation are the fifth generation.

However, an ancestor on the very first page caught his attention: "Is this lady named Kuroba Renka actually the first head of the family?"

Kuroba Renka's name was written in the very center of the first page of the family tree, signifying her unshakeable authority.

“Yes, according to the family records kept in Tottori, our great-great-grandfather seems to have married into the Kuroba family.” Kuroba Toichi suddenly came to his senses and added, “Did I mention that the Kuroba family originated from Tottori Prefecture before moving to Tokyo?”

“Look at these people, the first three generations of the clan, their spouses are basically also from Tottori.” Kuroba Tou gestured as he walked, pausing briefly at each person registered in Tottori.

These names came to mind one by one, and after specific screening, the commonalities that frequently appeared gradually surfaced.

!

Kudo Yusaku had a flash of inspiration and picked up a pen and paper to write down the names one by one: "Kurosawa, Kurokawa, and Kuroda, etc."

“Brother, don’t you think there are too many people in our family from Tottori whose surnames contain the character ‘black’?”

Kuroba Tou froze, then immediately understood his brother's meaning: "...I took over too early and never thought about these things carefully. In that sense, perhaps these people are like us Kuroba, branches that branched off from the main family!"

"Kuroba, Kuroda..." Kudo Yusaku arranged the surnames together, trying to figure out which surnames had the same pattern.

"Oh, right, Kuromon!" He slammed his hand on the table excitedly, "Have you ever heard of the name Kuromon Haruya?"

“Of course.” Kuroba Tou nodded, pointing to the branch above him. “He was adopted by my aunt Kuroba Michi 14 years ago, have you forgotten?”