After the Hirayama clan was rebelled by the generals of the clan under his command, and after the loss of Honmaru of Oniwa Castle, he committed suicide with his son Hirayama Clan Tiger, Hirayama Clan Hirayama Clan, and his family. At the same time, Zen Soji, who was stationed at Oshiki Castle, also eliminated his worries, and the Uesugi family also regained Oniwa Castle, Owada Castle, Joshin Castle and other places in the east without blood.

As a result of the fact that the Hirayama clan was heavily defeated by the generals of one of his clans, the Odawara Ise family lost the important place east of the Sagami River that could contain the powerful military commanders of the Uesugi family, such as Zen Soji and Ikeda Morishu, and the Odawara Ise family also lost the opportunity to capture the Kamakura Tsuruoka Hachiman Palace.

When Shimizu Uenosuke led his army to Yamashita Castle, he was shocked to learn that Hirayama Shige, Hirayama Tiger, and Hirayama Shihisa father and son had died in the battle of Honmaru in Oniwa Castle, and he didn't expect that Hirayama Shige, who originally thought that he had betrayed the Odawara Ise family, would hold on to Oniwa Castle until Honmaru fell. Immediately, Shimizu Uenosuke led his army to garrison Yamashita Castle, preparing to wait for an opportunity to recapture Oniwa Castle.

The narrow Xiangma Plain spreads out in front of the Dating City, and as far as the eye can see, the fertile fields are hundreds of miles, and there is no such relatively rich place as the Dating in the country. Moreover, it is also a strategic place to calm down and touch each other, and realize the unification of each other. Located in the central region of Aima Province, Oniwa Castle is the intersection of land routes and transportation. The main road to Odawara Castle runs from east to west, reaching Kai and Musashi in the north, Sagami Bay in the south, and Musashi in the east. Not only Ota Shimasa, Koyama Asaki, and Yamamoto Temple Dingchang, but even Takeda Katsuyori, Yamamoto Kansuke and others also believed that if they wanted to seize each other, they should first seize Oniwa Castle.

However, after the generals of the Hirayama clan's kinship suddenly stepped down and set up Hirayama Mitsuyoshi of Uesugi as the family governor, this was something that Takashi Ise, Katsuyori Takeda, Kansuke Yamamoto and others did not expect. Originally, Takeda Katsuyori, Yamamoto Kansuke and others also hoped that the Hirayama clan would be able to lead the Hirayama people to contain the powerful military generals of the Uesugi family, such as Ikeda Morishu, Nagano Yoshimori, and Zen Soji, and delay the westward advance of the 20,000-strong army led by Ota Shishosho. However, with the defeat and death of Hirayama Shige, the original plans of Takashi Ise, Katsuyori Takeda, Kansuke Yamamoto, and others went bankrupt.

In the third year of Yonglu, April 5. Previously, the lord of Ebimei Castle, Asahina Taichao, was pinned down by the Odawara Ise clan generals Kaneko and Okabe Tadahide, so he was unable to send troops to rescue Okabe Motonobu and Zen Soji generals. However, at this moment, the generals of the Odawara Ise family, such as Kaneko and Okabe Tadahide, who occupied Atsugi, Honma Castle, and Nakashinada Castle, suddenly surrendered hostages to Asahina Taichao and surrendered to the Uesugi family. This makes Asahina Taichao feel that there is something strange in it, obviously the Odawara Ise family still has a certain advantage in Sagami, how could they suddenly surrender to Kaejo, who was trapped in the lonely city, and offer hostages?

In the evening of the same day, the old Takanashi Naiki, who was the family of Koyama Asayaki, came to Ebina Castle and explained to Asahina Taichao, and Asahina Taichao was relieved.

"See Asahina Bichumori-sama, Koyamaden specially ordered to come to Ebi-famous Castle to solve the confusion of Asahina Bina-samaru." As soon as Takanashi Naki entered the Ebiki castle of Honmaru, Ohiroma said straight to the point to Asahina Taichao.

"Takanashi Naki, could it be that Kaneko, Okabe and other Odawara Ise family warriors were transferred to our side by Koyamaden?" Asahina Tai always feels that it is the handwriting of Asaki Koyama.

"What Asahina Bichumori-samaru said is right, it is indeed the small mountain hall that transferred them to our side. After the Hirayama people who had fallen to our side before were also transferred by Koyamaden, they quickly descended and attacked and killed the father and son of the Hirayama Iga Mamoru clan, the governor of the family and the head of the first gate, and successively offered hostages to Ota Saemon Saden. Takanashi nodded and said.

"It's incredible. The Iga Mamoru lineage of the Hirayama clan has long followed the Odawara-Ise family and the Uesugi family as enemies, and they will be omitted to our side by Koyamaden! It seems that Xiaoshan Hall has learned a lot from the side of the town government! Asahina Taichao couldn't help but sigh after listening to Takanashi's words.

"The Kaneko and Okabe families are both from the famous samurai families of the Musashi Seven Parties, and it is impossible for them to live under the Odawara Ise family, a daimyo of the field house from Ise, for a long time. Therefore, Koyamaden was able to know the benefits and disadvantages, and persuaded them with the Hirayama Iga Mori clan as a lesson from the past. When they learned of the fate of Hirayama Iga Morishige, they were also afraid of being rebelled by his retainers, so they were willing to turn to us and become our spearhead. Takanashi slowly explained the reason.

"When will Ota Saemon Saden lead the army into Xiangshu? The number of rebels and the Takeda Army is increasing day by day, and I am afraid that it will not be good for us in the long run! Asahina asked anxiously. Because Asahina Tai Chao is well aware of the current situation, once the Ashigara Castle guarded by Okabe Motoshin is lost, then the next one is Oshikiri Castle guarded by Zen Soji. These two cities are like skins and skins, and it is impossible to turn a blind eye to them.

"Asahina Bichumori, please be calm, Ota Saemon Saden is waiting for the 5,000 troops of Soshu to arrive in Shinagawa, and as soon as these 5,000 troops arrive, he will immediately lead the army into Xiangshu. Prior to this, Ota Saemon Saden, Koyamaden, and Yamamoto-ji Iyomori hoped that the Asaka generals such as Asahina Bichumori, Asahina Suruga, and Zenbei Nakamori would hold on to their cities and territories, and that the rebels and Takeda Army's eastward advance would be curbed as much as possible. Takanashi Neiki then conveyed the orders of Ota Shimasa, Koyama Asaki, and Yamamoto Temple Dingcho to Asahina Taichao,

"When?! Okabe Tanba Mamoru is holding on to the lonely castle, and it is said that tens of thousands of enemy troops are attacking Ashigara Castle day and night, and it may be difficult to hold out for a long time without reinforcements and food and grass. Once Ashigara Castle is lost, it means that the entire Ashigara Upper County will be captured by the rebels and the Takeda Army, so it will be even more difficult for us to recapture Xiangshu! "Asahina Taichao wants to know the specific time when Ota Shimasa will lead his army into Sagami at this moment.

"Before May, because the grain and grass required by the army at the moment were not fully prepared, the time for more than 20,000 troops to enter Xiangzhou was delayed." Takanashi Naki had no choice but to take the Nai Tai Dynasty, so he told the time when Ota Shimasa led the army into Sagami.

"I hope Ota Saemon Saden will be punctual." Asahina Taichao said coldly after listening to Takanashi's words.

Just after sending off Takanashi Naiki, Asahina Taichao, in order to test the loyalty of Okabe Tadahide, Kaneko Parents, and others, ordered them to quickly launch an attack on Nanasawa Castle, which occupies the east of Daisen. And Okabe Tadahide, Kaneko's parents and others knew that Asahina Tai Chao didn't trust him, so without saying a word, they each led their troops to the city of Nanasawa Castle.

At this moment, stationed in Nanasawa Castle was Itakura Shinjiro, a retainer of the Odawara Ise family, and the defenders in the city were only about 200 people. Since the Kaneko family, Okabe Tadahide and others secretly surrendered to the Uesugi family, and Itakura Shinjiro didn't know about it, he thought that they led the army to help him defend Nanasawa Castle.

Taking advantage of Itakura Shinjiro's unpreparedness, Kaneko's parents, Okabe Tadahide and others directly led the army to quickly capture Nanasawa Castle's Otemon Gate and most of Ninomaru. Itakura Shinjiro was caught off guard when he learned that Kaneko's parents, Okabe Tadahide, were leading an army to attack him, and the defenders of the castle were killed and wounded. Subsequently, Itakura Shinjiro had no choice but to commit suicide by Honmaru seppuku, and several of his castle soldiers successfully escaped from Nanasawa Castle and went to Odawara Castle to inform Takashi Ise, Takeda Katsuyori, Yamamoto Kansuke and others that Kaneko's parents, Okabe Tadahide and others had rebelled.

At the same time, the former retainers of the Musashi Oishi family, such as Oishi Dingji, Oishi Nobuki, Oishi Terumaka, and Oishi Dingxian, saw that Kaneko Patriarch, Okabe Tadahide, and others had led an army of 500 to capture Nanazawa Castle, so they quickly attacked Hosono Castle in the Asahina Nobuki domain, and also set fire to the castle town of Tashiro Castle.

In order to be able to rescue Okabe Motonobu and Zen Soji as soon as possible, the two of them must first destroy the former retainers of the Musashi Oishi family, such as Oishi Joki, Oishi Nobuki, Oishi Teunaka, and Oishi Joken, who are wandering in the two counties of Sagami Tsukui and Aika, otherwise it is very likely that their territory will be attacked by the former retainers of the Musashi Oishi family after they go out of battle.