Toishi Castle is located on a branch of Mt. Totaro, which juts out into the Ueda Basin in the shape of a huge warship in the northeastern part of present-day Nagano Prefecture.

The northern part is called (Mu Xuan) (sound side reading chuan, to sound) shape city, this city, Hushi City, a total length of about 500 meters.

The part that goes down the mountain in the southwest is called Yoneyama Castle, and together with Toishi Castle, it is also called Toishi Yoneyama Castle. It is bordered by the cliffs of the Kamigawa River to the east, and the upper part of the mountain, especially the main castle, is large in size, and the geographical location is critical, and it is unusually strong.

The exact year of its construction is unknown due to the lack of historical data, but Yoneyama Castle, which is part of it, was originally built by the Komiyayama clan>, a tributary of the Umino clan.

Based on the above information and the comprehensive situation of the place during the Warring States period, it is believed that the entire castle of Toishi Castle was built between the 10th and 19th years of the astronomical period.

Originally, the Shino clan controlled the eastern part of the small prefecture (which governed the current Ueda City) and the Shino clan such as the Umino clan and the Yuzu clan.

In the Ten-Year Battle of Umino Taihei, he was attacked by the combined forces of Takeda, Suwa, and Murakami, and the Umino clan was defeated.

Previously, the Murakami clan had been based in the Kita-Shinano region north of the Sakaki Basin to Kawanaka-shimadaira (Zenko-jidaira, Nagano Basin).

After the war, it infiltrated Higashi-Shinano Prefecture and then Saku-gun.

However, soon after, in the 15th and 16th year of Tenmon, Takeda Harunobu suppressed Saku-gun by force, began to border Murakami, and in the 17th year of Tenmon, launched the Battle of Uedawara.

Under these circumstances, the Murakami clan began to build the fortress of Toishi Castle in order to prevent the attack of the Takeda army.

As a branch castle, its scale even surpassed that of Murakami's main castle ---- Katsuo Castle, and it became the most important forward base for the defense of the main castle.

The way to deal with Toishi Castle is not to attack by force, which also led to the emergence of Toishi Collapse, of course, later Sanada Yutaka through the strategy, returned to Murakami Yoshikiyo's retainers, and took Toishi Castle without blood.

Sanada Yutaka did this and came up with a way to come up with a lesson from the Toishi collapse.

And the storming of Toishi Castle is also a strategy proposed by Sanada Yutaka to Takeda Harunobu.

Before this, Sanada Yukitaka did one thing, that is, to weaken the garrison in Toishi Castle, so that Sanada Yukitaka felt that the opportunity to take Toishi Castle had arrived.

Ueda Nobukata took over the command of Toishi Castle with a handwritten letter from Murakami Yoshikiyo, and Azuma Kiyotsuna and Yazawa Soshige were temporarily at the disposal of Ueda Nobukata.

Of course, Yazawa always looks down on Ueda Nobukata, after all, Ueda Nobukata is too young, and he is just a small samurai, but he is a descendant of the Umino family, so he looks down on Ueda Nobukata very much.

Ueda Nobukata didn't go to annoy Yazawa Soshige, and at the reception on the first day, Ueda Nobukata said to Azuma Kiyotsuna and Yazawa Soshige: "Azuma Maki, Yazawa Mazuki, I have limited ability under it, and I just want to guard Toishi Castle well and repay the kindness of the lord."

You are a veteran in the army, you know a lot more than you do below, and you come here with an attitude of learning. ”

Hearing Ueda Nobukata's statement, Yazawa always looked much better, and he said a little arrogantly: "Don't worry, there will definitely be no problems with the arrangement of me and my wife." ”

My wife Kiyotsuna hurriedly said: "Ueda Matsune, don't worry, I will be checking the defense with Yazawa every day, and there will be no problem." ”

Ueda Nobukata smiled: "Okay, well, with the guarantee of the two of you, I can rest assured in the next, but as a city generation, I also need to report the situation to the lord in the next."

So, my wife and Yasawa won't be disgusted and follow you to check, if the lord asks, I don't know if I don't know if I ask in the next question, then I'm really sorry for the lord. ”

My wife Kiyotsuna nodded and said, "What Ueda said is also a due courtesy, please rest assured, when you go to inspect, you will be notified at the next meeting." ”

Ueda Nobukata smiled and said: "Then there are Rago Tsugumaki and Yazawa Tsuki, for the two of them are so conscientious, I respect them very much, and I will definitely say a few kind words in front of the lord when the time comes." ”

Yazawa always had a stiff face, and he smiled at the right time, and the guests enjoyed themselves.

After meeting with Azuma Kiyotsuna and Yazawa Soshige, Ueda Nobukata returned to the place where he lived.

This time, Yazaki Heizou brought a few ashigaru and miscellaneous servants, Iwasita Kiyoshi also brought a few ashigaru and miscellaneous servants, and Ueda Nobukata also brought a few ashigaru and miscellaneous servants, and there were some people under his hands.

As for Satomi Youzu, she is now being taken care of by Aju and Minamihiro Nin-an.

When Ueda Nobukata returned to the courtyard, he explained some things to Yazaki Heizou and Iwasita Kiyoshita.

For Toishi Castle, the main power is not in the hands of him, the castle generation, Ueda Nobukata doesn't care, he only cares about winning this battle.

So he had to keep the hearts of the people in Toishi Castle unified, why was Toishi Castle taken down by Sanada Yutaka without blood? That's because there is an internal response in Toishi Castle.

Sanada Yutaka dragged his relatives in the small prefecture and county, and there was a samurai in Baobu who was his relative, so Ueda Nobukata chose to keep a low profile.

What he has to do now is to provoke the hatred of the soldiers in the city towards Takeda Harunobu, and the more hatred, the better.

In this way, Ueda Nobukata asked people to promote the evil of Takeda Harunobu, and then he defended Toishi Castle and watched the Takeda family slowly erode into the surroundings of Toishi Castle.

In the 18th year of Astronomical (1549), Matsuo Castle, a few miles away from Toishi Castle, was transformed from the castle of the Murakami family to the place where Sanada Yutaka settled.

His old territory, Sanada Township, was on the other side of Toishi Castle, and it was a good place, although there was not much arable land, but it was a place to raise horses.

Of course, Shinano is best known for Kisoma.

In Matsuo Castle, Sanada Yutaka meets with Kansuke Yamamoto and Masatomo Aiki.

Yutaka Sanada sighed, "I used to want to go back to my hometown, but now I feel like I'm in a dream. ”

Kansuke Yamamoto said with a smile: "With the talent of Yuki Takatsu, the day of returning to Sanada Township is not far off. ”

Hearing this, Sanada Yutaka stood up and walked towards the outside of the house, just in time to see Toishi Castle in the distance, as well as the surrounding villages.

Kansuke Yamamoto followed and walked out and said, "Toishi Castle, it's not very easy to fight, and I'm afraid that Yutaka Tsuki's strength alone can only defend Matsuo Castle." ”

Sanada Yutaka smiled: "Kansuke, don't worry about it, I invited Aiki to help." ”

Xiangmu Changchao smiled while holding the wine plate: "Haha, I'm here to drink wine here, hahaha." ”

Kansuke Yamamoto smiled and nodded: "With the help of Aiki Hiki, then I don't have to worry about Kotaka in the future, but I hope Kotaka will be more cautious in dealing with the strategy of the Murakami family." ”

Sanada Yutaka looked firmly into the distance, as if he saw Sanada Township in the mountains, and said solemnly: "I know it below!" But in the next must recapture the old collar! ”

Kansuke Yamamoto glanced at Sanada Yutaka with a little worry, and then said, "Recently, I'm not at home in the next time. ”

Sanada Yutaka looked at Kansuke Yamamoto in surprise.

Kansuke Yamamoto continued, "I heard that there was a man named Nagao Keitora in Echigo, and he is now the daimyo of Echigo.

The family took Shinano, and I am afraid that there will be a conflict with this long-tailed Jinghu, so I happened to pretend to be an iron cannon merchant and went to Echigo to see what kind of person this long-tailed Jinghu was. ”