Shiyu covered Yin's mouth, and Yin, seeing that it was Shiyu, finally breathed a sigh of relief.
"Don't speak yet, let's discuss it when we get back." Shiyu then immediately went into In's room with Ichikawa In.
Then Yin asked, "Brother Shiyu, didn't you already leave? I was just about to complain that you didn't say goodbye. Why did you suddenly come back?"
Shiyu chuckled and playfully flicked Ichikawa In's nose, saying, "You idiot, I never intended to leave. Did you really think the murderer was your older brother?"
Yin asked incredulously, "Isn't that right? The evidence is irrefutable; it's a fact that my eldest brother assassinated my second brother, and Father has already imprisoned him."
Shiyu slowly shook her head.
"There are too many suspicious points. I don't know if you noticed your older brother's eyes. When he said he wasn't the murderer, he was very agitated and looked completely clueless, which is enough to prove that he wasn't lying," Shiyu explained.
"No way, were we fooled by the real murderer? Since you knew that our eldest Brother Shiyu might not be the murderer, why didn't you stop Father and instead let him arrest him?" Ichikawa In asked again.
Shiyu replied, "It's simple. Only when your older brother goes to prison will the murderer have a chance to kill him!"
Startled, Yin asked in surprise, "Could it be that someone is plotting to murder my brother in prison?!"
"Yes, so we can go to the prison to observe first. If anyone dares to harm your older brother, then even if that person isn't the murderer, they must have been instigated by the murderer." Shiyu certainly wouldn't let the real murderer go unpunished, after all, it involved the stability of the Land of Water.
If the Land of Water is unstable, then the Kirigakure will also be unstable. In the end, they will not only fail to cooperate with the Shinobi Village, but will continue to be enemies with it. This is an outcome that Shiyu does not want to see. Of course, for both personal and public reasons, Shiyu find the real culprit.
"How should we get into the prison? Father has ordered him to be kept under strict guard; it will probably be very difficult to break through the prison entrance," Yin said.
"Have you forgotten how I captured you? I Flying Thunder God Technique; I can Teleportation directly inside, and taking you with me wouldn't be a problem. But it's still early; I can teach you a ninjutsu first," Shiyu said.
"What? You want to teach me ninjutsu? I'm not a ninja. I can't extract chakra either." Ichikawa In waved his hands repeatedly, indicating that he couldn't learn it at all.
Shiyu laughed and said, "With my help, you'll definitely be fine. Now try extracting chakra."
Shiyu then spent some time teaching Yin. Although Yin was a naturally naive girl, she was very serious. While she was fully engaged in extracting chakra, Shiyu immediately used his own abilities to bring out the chakra and potential within Yin's body.
"What!? I actually... I suddenly possess such powerful chakra? Brother Shiyu, what did you do?!" Hikaru was also extremely surprised to feel the sudden surge of chakra within his body.
"That's impressive. You actually possess both water and earth chakra natures within your body. This means you might become Kekkei Genkai ninja in the future." Shiyu naturally knew her chakra nature when he activated her potential, and then praised her.
"It's nothing. Control this power. Next, I'm going to teach you a powerful Earth Release ninjutsu." The ninjutsu that Shiyu wanted to demonstrate was actually very simple.
"Earth Release: Rock Concealment Technique." After completing the Shiyu Hand Seals, Shigure walked to the wall and then disappeared completely.
"Wow! Such amazing ninjutsu! I want to learn it! I want to learn it!" Yin was very interested and naturally studied very hard.
"Summoning Technique!" Shiyu summoned Katsuyu and placed it on Hidden's body. The Katsuyu then acted as a medium for chakra, continuously providing Hidden with its own chakra.
Because Shiyu didn't care about chakra consumption and provided serious guidance, and because Hidden was very dedicated to learning, Hidden quickly mastered the technique.
"What a genius! Even the ninjas of Iwagakure might not be able to learn this move. I can't believe you learned it in just one afternoon. How about this, you become a ninja from now on?" Shiyu suggested.
"Haha! I'm probably only interested in this one move. I'm not that interested in the others." Yin then Hand Seals and said, "Earth Release: Rock Concealment Technique!" He then used the wall to completely disappear.
However, Shiyu was still able to use his sensory abilities and his own eyes to observe Hidden. Hidden's Rock Concealment Technique could deceive most people's eyes, which was already quite impressive.
"Alright, now that you've mastered this technique, go take a shower right now! I reckon the real culprit will appear tonight, so be prepared!" Shiyu said very seriously.
"Huh? What are you talking about? Why do you want me to take a shower?" Yin asked, somewhat confused.
Shiyu chuckled and said, "You're still too naive. Didn't I tell you? You can't wear perfume. Otherwise, others will smell it. So you have to be clean."
"Oh right, don't use shower gel," Shiyu reminded him, Shiyu realizing that shower gel simply didn't exist in this era.
"Wow, I know what you mean! You mean to get rid of your own scent, right? Stop talking about it!" Ichikawa In then blushed and pushed Shiyu out, saying, "I want to take a bath, are you going to stay here? Get out, get out!"
"Tch, I'm not looking. Okay, okay, I know, I'll just stand at the door." Shiyu also stood guard at the door, looking absent-minded.
After a while, it was getting dark, and Ichikawa In changed into a very smart outfit, making him look even more like a ninja.
"Good, there's no smell. Now we can move out. Remember to stay hidden. You haven't forgotten how to control your chakra, have you?" Shiyu asked.
Immediately afterward, Yin stood upside down on the ceiling, prompting Shiyu to praise him.
"As expected, he's a genius! Alright, let's go!" Shiyu then hugged Yin tightly, and the two were very close.
"Body Flicker Technique!" Shiyu and Hidden quickly arrived outside the Land of Water prison.
"Is this the place? It's really heavily guarded!" Shiyu saw that there were sentries every five steps outside the prison, showing how airtight the defenses were.
"Yes, this is the only door to the prison," Yin said.
"Brother Shiyu, can you really Teleportation directly inside?" Yin couldn't help but ask, after all, there was a certain distance involved, and being able to Teleportation into the prison was really a fantasy.
"Little sister, don't doubt your brother!"