Traveling back thirty years to Conan, intercepting Princess Eri

Kisaki Hideaki noticed the key information on the receipt and then handed it to Inspector Megure.

Matsuzaka Yuuki's face turned even paler.

She looked at the receipt, a hint of despair flashing in her eyes, but she quickly regained her composure.

"It's just a receipt, and my name isn't on it. What makes you think it's mine?"

Matsuzaka's voice was somewhat exasperated, carrying a final stubbornness and struggle.
"So many people buy clothes in Tokyo every day, so many people receive receipts, how do you know this one is mine?"

"Maybe someone else lost it! Maybe you forged it on purpose!"

"Ms. Matsuzaka, you probably didn't ask the shop assistant carefully when you bought that dress, did you?"

Seeing this, Yukiko quickly interjected.

If Eri Kisaki continues talking, she'll be the center of attention all day.

Although they are now partners fighting side by side, they still have to fight for what they deserve.

"What are you asking about?" Matsuzaka Yuuki paused, clearly not understanding. "Is that dress special? It's just an ordinary dress, what could be so special about it?"

Yukiko smiled, a smile that conveyed an air of certainty that she had victory in her grasp.

"Of course it's special."

She deliberately slowed down her speech, making sure every word reached Matsuzaka Yuuki's ears clearly.
"This dress is a limited edition from a famous brand, which is only sold in one authorized store in Tokyo."

“And the dress you bought was the only one left in that store three days ago.”

She paused, looked directly into Matsuzaka Yuuki's eyes, and asked, word by word,

"In other words, there is only one person in all of Tokyo who can buy this dress. That person is the one who paid for it at that store at 11:23 a.m. yesterday."

Matsuzaka Yuuki's eyes widened instantly.

"What? How is this possible? I don't know..."

“There are many things you don’t know,” Yukiko laughed. “It’s easy to verify this. The police just need to go to that store and ask around. The shop assistants will definitely remember who bought the last dress yesterday morning.”

Inspector Megure immediately realized what was happening.

He beckoned two police officers over, whispered a few instructions, handed the receipt to one of them, and told them to go to the address on the receipt to verify Yukiko's words.

The two officers took their orders and left, the glass door closing behind them with a slight sound.

Yuuki Matsuzaka watched all of this with a face full of despair.

Her body trembled slightly, her hands hung limply at her sides, and she seemed to have all her strength drained away.

She knew that once the police went to the store to verify, everything would be over.

But she still refused to give up.

Matsuzaka suddenly looked up, as if he had remembered some lifeline.
"You just said I left wounds on my body at the wellhead, so where is the weapon I used?"

"I haven't left the coffee shop since I fell into the well!"

"The police just searched me, but they didn't find anything!"

Her voice grew louder and more assertive, as if she had found her last refuge.

"You said I stabbed him, there has to be something stuck in there, right?"

"Where's the murder weapon? The police searched me thoroughly, but they found nothing!"

“The coffee shop has been searched, but there’s nothing there! You can’t produce the murder weapon, so what makes you accuse me of being the murderer?” “She’s right,” Inspector Megure nodded, looking at Eri Kisaki with a serious expression. “Eri, although you said that Iguchi’s cause of death was not a wound on the back of her neck, but digoxin poisoning.”

"But in any case, the weapon that caused the wound on the back of the neck must be found; it is crucial evidence."

"If the murder weapon cannot be found, then your reasoning is missing the most important link."

Everyone looked at Eri Kisaki.

A smug glint flashed in Yuuki Matsuzaka's eyes, but she quickly concealed it.

She tried her best to maintain that wronged expression, but the corners of her mouth turned up in a barely perceptible curve.

However, Eri Kisaki showed no sign of panic.

She pushed up her glasses and a faint smile appeared on her lips.

That smile carried an air of certainty, and a hint of composure as if to say, "You've finally asked this question."

“It’s actually very simple.” The girl raised her chin, looked directly into Matsuzaka Yuuki’s eyes, and said, word by word, “The weapon she used to stab Iguchi Kosuke was actually hidden on her all along.”

This sentence exploded like a bomb in the coffee shop.

"What?" Inspector Megure's eyes widened in surprise. "Hidden on your person? But we just searched you, there was nothing there..."

"That's because your search wasn't thorough enough." Eri Kisaki's voice was calm and firm. "You searched her pockets, her bag, and whether she was hiding anything on her person. But did you ever consider that the murder weapon might not be a single, isolated object?"

Matsuzaka Yuuki's expression changed.

"What...what exactly are you trying to say?" Her voice began to tremble.

Eri Kisaki didn't answer her, but turned to Inspector Megure: "Inspector Megure, please have a policewoman come over to check Ms. Matsuzaka's bra."

Bra?

Everyone was stunned.

“The bra already has wires inside for support and shaping,” Eri explained. “If she pulled out a section of the wire from the bra and sharpened it, wouldn’t that be a ready-made, extremely sharp weapon?”

The girl paused, then continued,

"While pretending to save Kosuke Iguchi, Ms. Matsuzaka used the sharpened end to prick him on the back of the neck."

"The wound is so small, and there's not much bleeding, who would notice?"

"After that, once the waitress screamed, once everyone gathered around, once the police arrived, and everyone's attention was on the deceased, she only needed to find an opportunity to tuck the wire back into her bra."

"That way, even if the police search her, they won't find anything. Who would think to check the wire in a woman's bra?"

The coffee shop was so quiet it felt like time had stopped.

Matsuzaka Yuuki's expression completely changed.

It was an expression of despair, collapse, and utter defeat.

Her lips trembled, as if she wanted to say something, but nothing came out. Her body swayed precariously, as if she might collapse at any moment.

Inspector Megure took a deep breath and beckoned to a policewoman: "Take her to her room and check the wire in her bra for any traces of blood."

"Yes!" the policewoman replied, then walked up to Matsuzaka Yuuki and extended her hand.

Yuuki Matsuzaka did not resist. She knew it was all over.

A few minutes later, the policewoman removed the piece of wire from Yuuki Matsuzaka's bra. (End of Chapter)