"A black letter?"

Out of her usual habit, Wuyue Yuyue asked the question without thinking, but the detectives turned around and glared at her.

"Ah, sorry, sorry, please go on."

"It's true. I left the letter at home, so I can't show it to you..."

"I'm taking it with me."

The younger sister, who was wearing glasses, gingerly took out the black envelope from her sleeve. The envelope seemed familiar to the girl, but it didn't have the paint of the Crime Victims Relief Committee on it.

She took out the black letter paper from the envelope and unfolded it on the glass coffee table.

The detectives were very interested in it and picked it up.

Yui and Kirigiri quietly mingled among the detectives, peeking over their shoulders to read the words on the letter.

【Birthday Party Notice

Chat to express greetings.

The upcoming January 10th will be the 100th birthday of the head of the Takeda family, Takeda Tokumo.

Thanks to the daily care and concern of all our relatives and friends, we are able to welcome this day. We sincerely express our gratitude to everyone.

Therefore, in order to commemorate the old man's 100th birthday, a small banquet will be held at Takeda's house. The Ryotei chef will be invited to prepare the dinner. Please be sure to come to Humble House.

In addition, after the dinner, everyone will be given souvenirs related to the Takeda family as a small gift.

The Takeda family is just a fool]

This strange invitation letter gives people a feeling of déjà vu, full of the traditional style of "Black Challenge".

"Do you all know this person named Takeda Suiyun?" a detective asked.

"this……"

Everyone present shook their heads.

"Since you don't know this person, why would you be invited to a birthday party in a place like this? Don't you think it's suspicious?"

"Of course I feel suspicious," the man in the Hawaiian shirt replied with an exaggerated shrug.

"Speaking of which, Takeda Toiun originally passed away more than ten years ago." The young detective said, "But if he is still alive, he seems to be one hundred years old now."

"I knew that was the case."

"Does that mean we were called here by a hundred-year-old ghost? This joke is really bad." The man in sunglasses said, sitting leisurely on the sofa with his legs crossed. People who don't understand the current situation

It seemed that he might have the highest status among the people present.

By the way, my sister, a woman wearing glasses, is sitting upright on the sofa.

The eye-catching brown-haired woman was in sharp contrast to her. She put her legs on the coffee table and didn't seem to care that she was wearing a miniskirt."

"That's really incomprehensible." A criminal police officer said, "What is the purpose of you coming here?"

"Didn't you tell me that you were summoned by a strange letter?" the brown-haired woman said, "By the way, can you let us go back?"

"Unfortunately, I can't let you go now."

"Hey, this uncle is really annoying——"

"This is a murder case, but it's a human life. I hope you can take this matter seriously." The detective answered mercilessly.

In response to the detective's advice, the woman pursed her lips and stopped talking.

"What about you?"

They finally turned their attention to two young and outrageous girls.

"That... uh..."
Chapter completed!