American Island, home of Ebihara.

In the courtyard, the police were still investigating the scene of the crime, and in the corridor, Hattori's voice came:

"What did you say? We only left with the front foot last night, and Mr. Doorman went out with the back foot?"

"Yes!~" The person who came to watch the spirit nodded, "His expression at the time looked very wrong, and I don't know what was going on......"

"Sure enough! This guy does have a problem!" Hattori Heiji pinched his chin with one hand and squinted slightly, "Last night, after he heard that we were going to Miss Junhui's house to see the roster, he secretly followed him, and rushed to Miss Junhui's house first by detouring and stealing the roster......"

Next to him, Kazuha listened to Hattori's analysis, and immediately asked, "So, he was the one who killed Miss Junhui and burned down the warehouse?"

"That's right, it should be him!" Hattori Heiji nodded, "Miss Junhui went to the warehouse to look for the roster, and happened to see Mr. Menxie holding the roster. In order to kill people, Mr. Menxie killed Miss Junhui and burned down the warehouse......"

“...... However, all this is just speculation, and there is no evidence at all......"

Hattori scratched his head in annoyance, and Ye pointed to the courtyard and said, "Why don't we go and ask the police, maybe the police will find something......"

"Well, that's exactly what I said. ”

Hattori nodded and walked down the steps towards the yard, only to accidentally kick a pair of slippers on the steps, which fell to the ground, revealing the soles.

Hattori Heiji saw a trace on the sole of his shoe, his eyes suddenly lit up, and he compared the dugong arrow that he asked for from Heye, and a smile appeared on his face:

"The marks on the bottom of the slippers are consistent with dugong arrows, and this is ironclad evidence that someone walked out of the room, walked to the fishing nets to kill Miss Naoko, and then returned to the room to keep the spirit, right?"

"Kudo, it looks like I'm going to solve the case earlier than you this time!"

......

"What? You said Miss Junhui has a twin sister, and her sister is probably the mermaid who killed people?"

At the door of Shimabukuro Junhui's house, Tsukamoto Shumei, Loriai, and Kimishima Kana listened to Shu Yunwen's words, and they all looked confused, while Shu Yunwen made a "silence" action, and then said: "Your voice is a little quieter, I'm just guessing now, I can't be sure...... Well, I'll test it with illusion first!"

Shu Yunwen said, according to Chengshi's guidance, he stood less than twenty meters away from Shimabukuro Junhui, and then chanted a witch spell in his mouth, and the [Ghost Witchcraft Intermediate Illusion] was directly cast, affecting Shimabukuro Junhui's perception.

In the bedroom, Shimabukuro Junhui, who was dressed up as a longevity woman, didn't know that she had been affected by illusion, and suddenly heard a soft knock on the door, and quickly turned her head to look at the door, only to see a mermaid with the same upper body as her and a fishtail dragging her lower body walked in.

Looking at the mermaid in front of her, Shimabukuro Junhui stood up in a panic, dragged the mermaid into the room, and immediately closed the door: "Yahui? Why are you here? It's still daytime? You haven't been seen, have you?"

Inside the room, Cheng Shi and Akemi heard Shimabukuro Junhui's words, glanced at each other, and informed Shu Yunwen outside the door of the situation.

Damn! Shimabukuro Junhui really has a twin sister, and she really is a mermaid!

Shu Yunwen's heart jumped suddenly, and after squinting his eyes, he continued to use [Illusion] to affect Shimabukuro Junhui's perception, and at the same time, the mermaid Yahui under the effect of [Illusion] spoke: "Don't worry, I haven't been seen." ”

"It's good that you're not seen. Shimabukuro-kune breathed a sigh of relief, and then reprimanded, "Didn't I tell you last night that there is a somewhat strange soul slayer on the island, who may find you, don't come to me for the next two days?"

"Sister, I miss you!" "Mermaid Masae coquettishly to Shimabukuro Junhui.

"Really, didn't we just meet last night? the island is dangerous now, and it wouldn't be nice if you were discovered. Kimie Shimabukuro stood up, "...... Don't go back during the day today. I'm going to put water in the bathtub, and you're going to stay in the bathtub in a moment......"

"No, sister. In [Illusion], the mermaid Yae shook her head, turned around and walked out the door, "I'll go back right away, there will be no problem." ”

"No! it's dangerous!" said Kimie Shimabukuro with a nervous expression.

"It's really okay, sister, I found a very safe road. Mermaid Yahui replied, and then under the influence of Shu Yunwen, she asked a question, "Sister, will you go to the sea to find me tonight?"

"Go to sea?" Shimabukuro Kimie was stunned for a moment, then said with a smile, "That's what you said." The warehouse we usually use to meet was burned down by you, and because of the case, the waterfall where you live is not very safe, maybe someone will see you, so it's better to meet at sea during this time......"

the waterfall?!

The mermaid Yahui lives in the waterfall, doesn't that mean that the mermaid sanctuary is there?

Wait! Speaking of which, the same Masaki Kobayashi seems to have said that the legend says that mermaids will frolic in the waterfall at night, don't you say......

Outside the main gate, Shu Yunwen had a vague guess, forcibly suppressed the shock in his heart, and continued to control the [Illusion], making the mermaid Yahui say:

"That'...... Sister, I'm leaving, and it's not very convenient for you to look like now, so you don't have to come out. ”

After the mermaid Masae finished speaking, she jumped into the courtyard in front of Kimie Shimabukuro and left through the back door.

Shimabukuro Kimi-e shouted the name of "Yae" and followed, and her body was beyond the scope of [Illusion], and of course she didn't see anything.

At the same time, at the main gate of the Shimabukuro house, Shu Yunwen also withdrew the [Illusion], looked at Sumi Tsukamoto and the others in front of him, and said softly: "Miss Junhui has a younger sister named Yahui, she is that mermaid!"

Shu Yunwen's voice fell, and Tsukamoto Shumei and the others were all surprised, and at this time, a hurried female voice suddenly came from Shu Yunwen's side: "Yunwen, what did you say?"

"Who's that?"

Shu Yunwen was startled, turned his head to look at the side, and then saw a fluctuation in the air beside him, and Koizumi Hongzi walked out abruptly.

"Uh...... Koizumi-san?" Shu Yunwen looked at Koizumi Hongzi, and he looked confused, "Why are you here?"

In other words, you suddenly spoke, it's terrifying, okay?

Let's be careful, I almost didn't scare you to death!

Have you taken a fancy to my Soul Removal Office, and want to scare me to death and seek to rob my property?

Shu Yunwen complained in his heart, and Koizumi Hongzi explained: "I found it at sea now, I didn't find a mermaid shelter, and my magic power is almost exhausted, so I'll come back to discuss it with you......"

Koizumi Hongzi's words fell, Shu Yunwen looked at Koizumi Hongzi's tired appearance, thought of his previous speculation, and said, "Uh", "What...... Koizumi-san, if you want to talk about the mermaid shelter...... I speculate that it may not be at sea......"

"Not at sea?!" Koizumi asked.

Shu Yunwen immediately replied: "It's on the island - Mermaid Waterfall!"