"The reason is that belladonna was used as the poison to kill the professor."

Tang Zexu pointed at the purple flower in front of him and said, "The genus name of belladonna is "Atropo", which is said to be derived from "Atropos", one of the three daughters of Zeus.

And Atropos is the goddess of fate who cuts off the thread of life, that is, woman. "

"I see." Kitagami Haruko said with a smile.

"What do you think of this idea?" Tang Ze asked.

"It really is like the kind of reasoning you'd find in a mystery novel," Kitagami Haruko said. "Very interesting."

"Yeah, that's a good idea, right?" Tang Ze asked with a smile.

"Yes." Kitagami Haruko nodded slightly indifferently, "Then I have something else to do, so I'll leave first."

Looking at Kitagami Haruko's leaving back, Tang Ze smiled silently, then turned his head to look at the deep purple belladonna in front of him.

Kitagami Haruko walked very quickly, as if she wanted to vent all the frustration in her heart.

Not long after, Tang Ze also walked out of the botanical garden.

"Senior, is the conversation going well?"

Naoki Kamii, who had just arrived at the entrance of the botanical garden, handed a cup of coffee to Tang Ze: "When I just came here, I saw Kitagawa Haruko walking out with great momentum.

That look of keeping strangers away clearly shows that he is angry."

"I just briefly speculated." Tang Ze took a sip of coffee, looked at the place where the other party had left, and smiled: "It seems that I hit the nail on the head."

"So what should we do next?" Naoki Kamii asked. "Inspector Megure is currently handling another case. I'm afraid there won't be any help for the time being."

"Well, you go and stay with her for a few days."

Tang Ze thought for a moment and said, "You haven't met him yet, so it would be more convenient to talk to him. Thank you for your help.

We don't have a good solution at the moment. After all, the case has been sealed for a long time. A hasty investigation might alert the culprit. Moreover, we might not be able to find out anything simply by visiting and investigating."

"I understand. Don't worry, senior." Naoki Kamii nodded and said, "I promise to complete the task."

"Don't push yourself." Tang Ze smiled and patted his shoulder. "Let's go. To reward you for your efforts, I'll treat you to a delicious meal."

The two got back into the car and drove away, soon disappearing on the school street.