Another week has passed, and today happens to be Valentine's Day. Originally, when I was watching Miss Yoko's performance at home alone, I had to leave the house because of a phone call.

The call came from Xiaolan, who was going to a party, and there was an incident at the party she was attending, and the eldest son of the owner's family seemed to have food poisoning.

When Kogoro arrived, Officer Twilight had already led someone to complete the preliminary investigation of the scene, and at the same time received a notice that the victim, Katsuhiko Imagawa, had died.

It turned out that two days ago, Xiaolan and Suzuki Sonoko met two college students at the café, and they were both members of the tennis club of Rice Flower University.

One of them, a stout man named Toshihide Wakamatsu, invited the two of them to the party today. However, no one expected that such a thing would happen.

"Maori, why are you here?" "Because Xiaolan called me and told me about the general situation." "I see!" Officer Twilight glanced at Ran and nodded.

After seeing Officer Twilight's attention shifted, Kogoro immediately approached Conan's side. "How? What did you find? "Well, for the time being, I only think that the deceased smoked cigarettes and ate chocolates from Miss Haomei, and the rest is similar to us."

"Almost?" Kogoro suddenly grasped a key point. "The mother of the deceased Katsuhiko Minagawa prepared cake and coffee for us, but the deceased did not eat cake because he didn't like sweets."

"Didn't eat cake? In that case, the situation is still not clear enough! Kogoro touched his chin and swept his gaze over everyone.

Then, at Conan's prompting, Officer Twilight noticed that the deceased had smoked cigarettes before his death, and the inspectors quickly put away the cigarette butts under his orders, and then Kogoro discussed with Officer Twilight about the possibility of poisoning the cigarettes.

Seeing this, the garden suddenly shouted. "I saw it just now, when Mr. Minagawa went to the yard, this guy brought him a cigarette to smoke." She pointed to Naomichi, who was also a member of the tennis club.

Hearing this, Officer Twilight suddenly looked at the straight road vigilantly, and he suddenly became a little flustered because of the gaze of everyone. "Naomichi, did you really do it!?" "How? Just check the cigarette butt and you'll soon find out. ”

"Yes, that's what I did. That guy should have died a long time ago, and he was bullying Ah Xiang! I couldn't take it anymore and poisoned the filter of my cigarette. Hearing Officer Twilight's words, he spoke out without hesitation.

However, his words also made Kogoro and Conan understand that he was not a real prisoner, and just at this time, the sound of porcelain clashing came into their ears, coupled with a brown stain on her chest, and they immediately figured it out.

After the two exchanged a few words, they spoke out to Officer Twilight and the others who had just wanted to take away the straight. "Wait, Officer Twilight, he's not really a prisoner." "What, didn't he admit it to himself? What the hell is going on? Maori dude? ”

Seeing Officer Twilight, who was both shocked and puzzled, Kogoro continued to speak calmly. "No, although he is indeed poisonous, but because Mr. Katsuhiko usually smokes cigarettes without filters, he directly pinched off the filter after getting Mr. Straight's cigarettes."

Everyone's eyes suddenly looked at the evidence bag in the hands of the forensics, and the cigarette filter in it was indeed removed intact, and the suspicion of the straight road was immediately washed away. "In that case, who is the one who poisoned and killed Mr. Minagawa!?"

"The prisoner is Mr. Minagawa's mother." The calm words made the crowd commotion. "What are you talking about? Tell me how I killed him!? She shouted excitedly.

"You're poisoning your food." "Everyone eats the same food!?" "That's right, but only Kahiko died, and he was poisoned because he didn't eat it." "What the hell is going on when you die without eating?" Obviously, Kogoro's explanation made everyone even more puzzled.

"This lady, you saw that Ah Jin seemed to be quite angry when he was eating chocolate, but he gave him a cake to eat, why did you do this? Because you saw him eat poisoned coffee, you should hurry to give him a cake with antidotes, right? ”

"What evidence do you have for such nonsense!" All she had left was panic. "The evidence is on the coffee cup, and the reason why you have to clean the coffee cup at this time is to erase the evidence."

"But I don't know that no matter how much you wash it, with current technology, you can check for toxic residues on the cup, let alone the drain. On top of that, what's in your arms is starting to melt! “

"You were the first to rush to Mr. Katsuhiko's side, and you exchanged the chocolate given to him by Miss Haomei for poisonous chocolate, and wanted to blame her for the murder!"

"No kidding, tell me why I would have known that he would eat the chocolates that Miss Hollywood gave him. Also, why would I kill my own child!? She suddenly screamed nervously, defending herself.

Hearing this, Kantani, who is also a member of the club and is Katsuhiko Minagawa's childhood sweetheart, suddenly became excited. "No, Mrs. Mikawa is not Katsuhiko's biological mother, Katsuhiko's biological parents died in a car accident seven years ago."

Because of this, Katsuhiko will be handed over to her, an aunt, to take care of. The reason why Kahiko likes Haomei is because she looks alike to Katsuhiko's biological mother, so you know that he will definitely eat the chocolate that Haomi gave him! ”

After hearing her words, Mrs. Minagawa suddenly collapsed and knelt on the ground. "I'm sorry Miss Beauty! I happened to see you buying chocolate on the street before I thought of doing it. ”

"My husband's business failed and he owes a lot of money, so I have to get Katsuhiko's property, I want to protect this family, for the happiness of Ah Jin." As she spoke, she cried and hugged Ah Jin into her arms.

"Even so, killing is not the solution to the problem, and crime is always a crime." Kogoro looked at her seriously, and his words were even more merciless.

This is the end of the case, but Xiaolan still can't give away the chocolate that Xiaolan was excited by Yuanzi. In the end, Xiaolan and Conan, who were sitting on the street bench, ate it in half, and this scene was seen by Kogoro in the shadows and deeply remembered in his mind.