Before the start of the war, Oda Hidenobu had 123,000 stone Chiyuki centered in Gifu, and was the largest force in Mino. According to the agreement reached with Hideho before, after Hideho sent troops to Aizu, he immediately mobilized within the territory, and took advantage of the fact that the daimyo of Mino accompanied the army to quickly capture many castles in Nishimino including Imao Castle, successfully suppressed the three Nishimino clans that were pro-Tokugawa, and completely took control of the four counties of Atsumi, Fang, Xida, and Ikeda, and expanded his sphere of influence to the area of Sakata County in Omi Province.

Not only that, but he also coerced Oda Nagataka (son of Oda Nagayoshi, grandson of Oda Nobunaga, and considered Oda Hidenobu's uncle) to hand over Nomura Castle so that it would be easier to launch a raid on Hachiman Castle in the gun. However, Oda Hideo, the eldest son of Oda Nobuo, the lord of Echizen Ono Castle and the lord of Echizen Ohno Castle, was suspicious of Oda Hidenobu's approach, and on the one hand, he persuaded Oda Nagataka to refuse to open the castle, and on the other hand, he contacted Maeda Toshimasa, hoping that he could send someone to Gifu Castle to find out Oda Hidenobu's true intentions.

Although Hideho had informed Maeda Toshimasa before his expedition, informing him that Oda Hidenobu would attack the three daimyos of Nishimino to ensure the safety of the Noo Corridor. But Oda Hidenobu's current approach is clearly beyond Hidebo's instructions. In view of this, Maeda Toshimasa accepted Oda Hideo's suggestion and decided to send his retainer to Gifu to find out.

But people are not as good as heaven, and before the retainers set off, the wars between Omi and Hokuriku broke out one after another, Maeda Toshimasa was tired of coping, so he naturally left Mino's affairs behind, and Oda Hidenobu seized the opportunity to step up and force Oda Nagataka to open the castle. Oda Nagataka wanted to ask Oda Hideo to defend Nomura Castle together, but the latter, at the request of Maeda Toshimasa, led his army to attack Niwa Nagamasa's Katsuyama Castle, leaving only 300 men to defend Ohno Castle.

Under these circumstances, Oda Nagataka had to follow the advice of his retainer and hand over Nomura Castle to Oda Hidenobu. Although Oda Hidenobu strongly invited him to participate in the attack on Gujo Hachiman Castle, he was afraid of this nephew, who had considerable means and prestige, and finally chose to flee Nomura Castle and go to Ohno Castle to seek refuge from Oda Hideo.

Oda Nagataka has no courage or strategy, and it seems that there is no way to escape to Ono Castle. Fortunately, Oda Hidenobu was not in Echizen, and did not take the opportunity to seize Ohno Castle, but aimed at Gujo Hachiman Castle.

After pulling out the nail of Nomura Castle, Oda Hidenobu completely connected Nishimino and North American, and on the eighth day of the fourth month, he personally led an army of 10,000 troops from Gifu Castle and marched along the streets of Mino to Gujo Hachiman Castle. The lord of Hachiman Castle, Inaba Sadatsu, was also unwilling to sit idly by, and on the one hand, he mobilized within the territory and recruited 1,500 people to cage the castle; On the other hand, he sent people to Iwamura Castle in Higashimino and asked Mori Tadamasa to send someone to support him immediately.

On the 10th day of the fourth month, Mori Tadashi sent his family elder Hayashi Weizhong to lead an army of 1,200 troops to attack Torimine Castle on the east side of Gifu Castle, intending to force Oda Hidenobu to return to his division. Unexpectedly, at the same time that Oda Hidenobu got the news, Kawajiri Zhenyuki, the younger brother of Naoki Castle Castle and Kawajiri Hidecho, led 300 troops to set off from the trail and launched an ambush before the Mori army was about to arrive at Nakasendo, and in one fell swoop won Lin Weizhong and many other important ministers of the Mori clan, and the Mori army was also in chaos, and retreated to Iwamura Castle in a hurry.

Although the Kawajiri army also lost more than 100 people, the battle was very worthwhile, on the one hand, it hit the morale of the Mori army, so that it did not dare to take the initiative until the end of the war; On the other hand, it directly cut off Inaba Sadatsu's thoughts and accelerated the pace of his surrender in Kaicheng.

Sure enough, on April 17, at the same time that Maeda's army captured Matsuren Castle, Inaba Sadatsu, the widow of the Oda clan, finally chose to surrender in Kaejo under the persuasion of his retainers and the despair of being isolated. Oda Hidenobu thus accomplished his first phase of his goal, and after a few days of rest, he turned his troops to Mori Tadamasa of Iwamura Castle.

After the previous defeat, Mori Tadamasa did not dare to act rashly, and with the arrival of Nabeshima Naoshige and other daimyo pro-Hideho in the southwestern Mino, such as Ogaki and Tarui, as well as the defection of Inaba Sadadori, he was the only daimyo close to Ieyasu in Mino, and the situation was already very serious for him.

On April 22, Oda Hidenobu led his troops to Iwamura Castle and, with the support of Kawajiri Town, began a fierce assault on Iwamura Castle. In the face of such a victorious Oda army with a rainbow of morale, Mori Tadamasa was terrified. As an old minister of the Oda clan, is it the right choice to go toe-to-toe with Nobunaga's successor and fight to the death?

Just when Mori Tadamasa was hesitating, the news of Niwa Nagashige's defeat and surrender, Maeda Toshimasa's pacification of Echizen and Kaga reached the ears of Oda Hidenobu, who was overjoyed and immediately ordered someone to write down the battle situation in Hokuriku on paper and project it into Iwamura Castle, and at the same time, arranged for people to take turns shouting to the castle, demanding that the Mori army surrender as soon as possible, so as to obtain Hidebo's forgiveness to the greatest extent.

On April 24, the morning of the defeat of the Tokugawa army Hinohara, Oda Hidenobu's Oda army captured Ninomaru at Iwamura Castle, and it was only a matter of time before the castle was breached. Late that night, the retainers of the Mori clan, who did not want to sit still, together with the former retainers of the Toyotomi clan who had left the Shimori family earlier, sneaked into his dormitory while Mori Tadamasa was not paying attention, and coerced him to order the opening of the castle.

Kamori Tadamasa understands that this series of wars in Mino always needs to find a mastermind to convict. Even if he surrenders to Oda Hidenobu, it does not mean that he can escape punishment, especially since he has also taken the initiative to attack Oda Hidenobu. Even if he surrenders now, he is the slowest of all the daimyos. Therefore, Mori Tadashi feels that it is impossible to block himself with his skills, and that being a monk and being cautious may just be a luxury, and at this moment, all he can do is to find a way out for his family.

Thinking of this, Sen Zhongzheng called Lin Weizhong's eldest son Lin Xiuzhong to the front and said sincerely: "The matter has come to this point, and I have no other requests, but I just hope that this matter will not spread too widely, and as far as possible will not hurt the relatives in the family." ”

Lin Xiuzhong's original intention was just to force Sen Zhongzheng to surrender in Kaicheng, but he never expected him to say such a thing, and he didn't know how to answer for a while. However, several former Oda ministers have always been dissatisfied with Mori Tadamasa, and they just took this opportunity to vent out, they carefully analyzed the relationship between the Mori family and Oda Hidenobu and the pros and cons of surrendering to Mori Tadamasa, and told him to have one night to think about it.

"We are not afraid of death, and we are not afraid of the lord doing it to us during the day. If we really say that we are afraid, it is that we are afraid that Nobunaga's wisdom will be insulted by our ingratitude, and that after the city is broken, the people will be dusted and their lives will be ruined. The Hokuriku War has ended, and Prime Minister Komatsu can serve as a lesson for the lord. Before leaving the dormitory, Lin Xiuzhong and the others said righteously.