After the seal was broken, Shiyu immediately bit her finger.
"Summoning Technique!" The Slug Sage appeared before him, Shiyu immediately said, "The matter we discussed before will proceed as planned."
The Slug Sage said, "I didn't expect it to come to this."
"Yes, let it split," Shiyu suggested, and the Katsuyu then split into many smaller Katsuyu.
The little Katsuyu immediately left through the prison window at Shiyu's command.
"Alright, now it's just a matter of waiting." Shiyu then waited in the prison, and to avoid getting Shiyu, he practiced some hand Hand Seals.
Day after day passed in this way, and the Katsuyu gradually completed Shiyu's task.
One day, Shiyu discovered that Danzo had entered prison, so Shiyu prepared a play.
"This guy probably wants to take my Mangekyo. Since he wants it so much, I'll give it to him." Shiyu smiled, then re-cuffed himself with his handcuffs and leg irons, continuing to pretend to be locked up.
Sure enough, Danzo opened the door to his own prison cell.
Through his senses, Shiyu was able to discover that Danzo's right arm had been restored. Apart from his own Katsuyu, the only other creature capable of regenerating severed limbs was the First Hokage.
"It seems he used the First Hokage's cells; it looks like he gained something extra this time."
Danzo made no sound, but with a single gesture, his two henchmen grabbed Shiyu firmly.
Danzo then gave Shiyu an injection of something like a hypnotic drug, Shiyu subsequently became drowsy.
"Haha! What good is your strength? The Mangekyō Sharingan will be mine soon!" Danzo removed the cloth covering Shiyu's eyes, revealing a pair of scarlet Mangekyō Sharingan.
Danzo cruelly pried it off and put it into a container filled with a sticky substance that could preserve the Sharingan perfectly.
Immediately afterward Shiyu cried out in pain. In Shiyu panic, Shigure grabbed Danzo and channeled the First's bloodline into her own body. Then, Danzo's men cut off her hand.
"Alright, don't go too far, I'm fine." Danzo waved his hand, Anbu injected another dose of liquid into Shiyu's body.
"That Hiruzen guy hasn't given up on him yet. We've got what we wanted, it's time to go." Danzo then hurriedly left, showing that Danzo had come here taking a certain risk.
After Danzo had gone far away, Shiyu once again broke free of his handcuffs and shackles.
They removed the blindfold, Shiyu 'Shiyu sockets.
"Summoning Technique!" Shiyu summoned a small portion of Katsuyu again. Because Katsuyu share information, Shiyu was able to receive information from them.
"Lord Shiyu, are your eyes alright?" Katsuyu was also surprised.
Shiyu shook her head and said, "It's nothing."
"Danzo my Genjutsu. Those eyes were just something your clone stole from an Uchiha corpse, but he'll foolishly believe his plan has succeeded."
Shiyu then asked, "How did it go? Did you accomplish what I asked you to do?"
The Slug Sage replied, "First, Kakuzu is ready with Kakuzu, and we can set off at any time. Second, I've already brought Xiao Xing to Shikkotsu Forest. As for Hinata Kurenai Kakashi Nao, and Hizashi Hyuga, they're on the battlefield supporting Jiraiya. Third, I've almost finished that as well; now all I need is an excuse and an opportunity."
"I understand. Don't worry, we'll have our chance. Danzo hand on me because he's afraid of the Third Hokage. And the Third Hokage, for various reasons, will only imprison me. Sooner or later, he'll come and ask me to do something for him," Shiyu said with great conviction.
"Help me train Xiao Xing properly." After asking the Slug Sage for a favor, Shiyu released his Summoning Technique.
Inside the prison, Shiyu was very free. She did Taijutsu training every day, but the most important thing was to communicate with the system.
"System, can we fuse now? I have the bloodlines of the One-Tails, Four-Tails, Five-Tails, Seven-Tails, Nine-Tails, but the most crucial one is the bloodline of the First Hokage. Oh, and there are also some family bloodlines that have mastered special secret techniques," Shiyu said.
"Alright, let me see! My god! This First Hokage's bloodline is truly amazing! He possesses a large amount of Asura's bloodline! It seems you can obtain the power of the Sage of Six Paths through him!"
"And Aburame, Yamanaka, Nara, Akimichi?"
"And the bloodlines of numerous Tailed Beasts? Are you sure you want to fuse them? This fusion will take a long time. I suggest you collect Tailed Beast bloodlines before fusing them. I recommend fusing the First's bloodline and the bloodlines of the four major clans; it will be much faster," the system suggested.
"I see. Then let's merge. I have nothing to do here, so wasting some time doesn't matter," Shiyu said nonchalantly.
"In that case, 3, 2, 1, begin the fusion!"
Shiyu was already very familiar with the system and knew that it would go into a dormant state after merging with it. He had also long been accustomed to the merging process.
Shiyu felt an itchy sensation in his eyes, and his chakra continued to rise. His physique also grew stronger step by step, Shiyu soon fell into a deep sleep.
After an unknown amount of time, Shiyu heard someone repeatedly banging on the cell. Shiyu finally regained consciousness Shiyu, through her sensory abilities, saw a person.
"Shiyu, Shiyu, it's me, Hiruzen Sarutobi! Wake up!"
"I'm awake, old man. I didn't expect you, the Hokage, to come to Konoha Prison. What brings you here?" Shiyu asked.
"I'm here to tell you three things," the Third Hokage said very seriously.
"The first thing is, your Xiao Xing has disappeared. She disappeared without a trace, and I only just found out. I'm very sorry about that. I didn't take good care of her for you."
Shiyu had specifically sent the Xiao Xing to take Katsuyu away, so she didn't pay any attention.
"What else?"
"The second thing is that Lady Mito passed away a few days ago, Kushina became the Nine-Tails Jinchuriki."
"Mito, is there anything else?"
"I hope you can help me with this. The third thing is that Amegakure, which has maintained peace with Konoha since the Second Shinobi World War, has suddenly declared war on Konoha," Hiruzen Sarutobi said.
"What does their declaration of war against Konoha have to do with me? The Sannin, Minato, and Gray Fang could all handle Hanzo, right? You could too. What can I do to help you?" Shiyu outwardly expressed his reluctance, but inwardly he thought, "The opportunity has finally arrived!"
"The Sannin are guarding the border, Minato still has a mission to complete. We can only rely on you."