To put it succinctly in Kyoto, when Mori Moto was busy dismantling the broken ship of the Ouchi family, Oda Nobunaga was immersed in the unification of Owari and Mino; After the fall of Imagawa, the 'Three Small Powers of the Eastern Kingdom', Takeda and Go-Hojo both tried their own ways to expand their territory. But the land of Gyeonggi has leapt out of the world, and he is Sanhao Changqing. The hegemony it established is known as the 'Three Good Regimes'. It was this Miyoshi regime that completely buried the Hosokawa regime, which was originally calling for wind and rain in Gyeonggi.

After Ashikaga Yoshiteru became the general of the Seiyi, under his disciples, no matter what kind of swordsmen and cockfighters, even singers had to recruit.

Since Akechi Mitsuhide's 'transfer' to Ashikaga Yoshiteru, he trained the Iron Artillery Team for Ashikaga Yoshiteru on the one hand, and on the other hand, he devoted himself to interacting with the ministers and staff, and he was very popular in Gyeonggi. And the reason why Ashikaga Yoshiki is anxious to use him is that he is ready to use him to solve his big problem - Miyoshi Chikuzen Shou Chokei.

At that time, the relationship between Ashikaga Yoshiteru, who was eager to be pro-government, and Miyoshi Nagakei, who regarded the shogun as a puppet, had deteriorated very much.

Miyoshi Changqing was originally a retainer and head of the Hosokawa family in Gyeonggi. As for why he turned against the main family, he also needs to start with his father.

Before Miyoshi Chokei, it was still Hosokawa Harumoto of the Awa Hosokawa family who held the power. And the Miyoshi family was originally the head of the Awahosokawa family. After successfully defeating Hosokawa Takakoku, Hosokawa Harumoto was jealous of the power of Miyoshi Motochocho, the father of Miyoshi Chokei, and turned against him. After that, Hosokawa Harumoto, with the help of his advisor Kisawa Nagamasa and the fierce general Miyoshi Sozo (Miyoshi Gencho's uncle), first defeated Miyoshi Gencho with the help of Honganji Ichiku, and then used Hokke Ichiku (Nichiren Soichi) to drive Honganji out of Kyoto. Then, Hosokawa Harumoto used the old Japanese Buddhist temples Enryakuji and Mitsui Temple, and contacted the Omi Daimyo and the Governor of Rokkaku Joyori to defeat the Hokke Ichiku. Under a series of combination blows, Hosokawa Harumoto finally settled down, assumed the post of shogunate, re-erected the banner of the 'Hosokawa regime', and regarded the twelfth shogun Ashikaga Yoshiharu as a doll in his hands.

However, Hosokawa Harumoto exhausted his calculations, but he still ignored a nemesis of his fate, that is, Miyoshi Chokei, the son of Miyoshi Gencho. This was not Hosokawa Harumoto's problem, how could a child who was only ten years old at the time make Hosokawa Harumoto fearful? In addition, Kizawa Nagamasa's suggestion: "After all, the Miyoshi family is the head of the Awa Hosokawa family, and all generations have been born and died for Awa Hosokawa, if they are destroyed, who will serve the Awa Hosokawa family with peace of mind in the future?" ”

In this way, Miyoshi Chokei and several younger brothers survived in Shikoku Awa. But how could Hosokawa Harumoto think that he had a soft heart back then, but he left a huge hidden danger.

In the eighth year of astronomy, the eighteen-year-old Chikuma Maru Motofu, named Miyoshi Sun Jiro Chokei, officially took over the widow of his deceased father. The first thing Miyoshi Chokei did next was not to thank the lord, but to directly cross the Kii Strait with 2,500 troops, and after landing, he joined forces with Yusa Chokyo to kill directly in Kyoto.

In the 11th year of Astronomy, Changqing killed his enemy Kisawa Nagamasa at Taiheima Temple in Hanoi, and then turned against Yusa Chokyo, first defeating the Hosokawa clan supported by Tamai Yasu in the following year, and then in the 16th year of Astronomy, Changqing's second brother Miyoshi Yoshiken led an army to defeat the Yusa Chojiao army at Settsu Relic Temple. In May of the following year, Yusa Chokyo and Tayama Masakuni, who were no longer able to compete with Miyoshi, submitted to Miyoshi Chokei, and Chokei also married Yusa Chokyo's daughter to consolidate his rule over the Yusa clan.

In the eighteenth year of Astronomy, the shogun Ashikaga Yoshiharu fell ill and died. Miyoshi Chokei attacked Itami Castle with his fourth brother Shikawa Ichicun as the vanguard and set fire to the castle, took Nakajima Castle, approached Maki and Castle to defeat the Hosokawa army at the mouth of the Settsu River, and Hosokawa Harumotokata general Miyoshi Sozo was killed in battle. Harumoto turned to the Minami-Omi Rokkaku family, who had a relationship with him, to borrow troops, and the two sides fought in Kyoto, suffering heavy casualties. First, in July of the same year, Chokei ordered Miyoshi Nagaitsu and Tokawa Ichiku to attack Kyoto, but were ambushed by the Hosokawa army with foreign guns, and then Nagakei himself led a large army into Kyoto, and the new successor shogun Ashikaga Yoshiteru fled to Kuchiki with Rokkaku Jorai. In February of the following year, a fierce battle broke out again between Chokei and the returning Hosokawa and Rokkaku coalition forces, and Kyoto's Kakuya, which was caught in the flames of war, was burned. In March, Chokei captured Iwakura Castle near Kyoto. In August, Kasai Motonari of Harumoto attacked Kyoto from Tanba Province, repelled Matsunaga Hide's army, and burned down Sokokuji Temple. In December, Chokei invaded Omi Province with Matsunaga Nagayori as the spearhead and set fire to Otsu.

In April of the 21st year of Astronomy, Miyoshi Nagakei led Naito Kunisada, Matsunaga Nagayoshi and other generals to send troops to Tanba Province to surround Hatano Castle Hachijo, which supported Hosokawa Harumoto, and at the same time, Miyoshi Nagakei's sister-in-law Akutagawa Sunjuro was rebelled by the Ikeda family and raised a rebellion in Akutagawa Castle. The fighting between the two sides has devastated the area around Kyoto, and the local people have suffered greatly. In the twenty-second year of astronomy, Hexagonal Dinglai sent an envoy to ask for peace talks. Chokei made a condition that Haramoto cut his hair and become a monk, and his son Hosokawa Nobuyo succeeded him as the head of the shogunate. The peace agreement was reached in February, and Yoshiki returned to Kyoto and became the thirteenth shogun of the Muromachi shogunate. Subsequently, Chokei appointed the deacon of the shogunate government office, Ise Sadakyo, to deal with the chaos after the war, and sent troops to surround Akutagawa Castle and attack the rebel general Akutagawa Sunjuro.

Miyoshi Chokei's autocratic power drew the displeasure of Shogun Ashikaga Yoshiteru. Yoshiki secretly recalled Hosokawa Harumoto to deal with Changqing, and Harumoto summoned the old department and set fire to Miyoshi's house. Changqing was furious when he heard the news, and quickly sent troops to lead 20,000 sharp soldiers to defeat Harumoto in the western suburbs of Kyoto, and then the troops suppressed the Lingshan Castle where Yoshiki was stationed to capture it.

At the same time that Miyoshi Chokei was attacking in Kinki, Miyoshi Chokei's younger brothers were also launching offensives in various places. In the twenty-second year of Astronomy, Miyoshi Chokei's second brother, Miyoshi Yoshiken, killed Hosokawa Mochitaka and completely controlled Awa Province. The third brother, Anzhai Fuyasu, inherited the Awaji wealthy Yasuku clan, and with the support of the second brother Miyoshi Yoshiken, he led the Awaji Navy to defeat the continent of Kasai Motomasa and complete the unification of Awaji Province. The fourth brother Shihe Ichicun inherited the Sanuki Shikawa clan, and after subduing the Yatomi clan, a subordinate of the guardian Kagawa clan, and with the help of the second brother Miyoshi Yoshiken Awazhong, he completely subdued the Kagawa clan, and established Kagawa Motokei, a tributary of the Kagawa clan, as the family governor, as the lord of Tianwu City, and completed the hegemony of Sanuki country.

After Miyoshi Changqing was appointed to build the front guard, he signed the pleadings as 'Sanzhu'. Why did Miyoshi Changqing succeed in Shangluo and dominate Gyeonggi? In his own words, because he has 'three good': "resourceful", "elegant", and "brotherly fierce". Unlike those who can only 'eat well', 'drink well', and 'play well', he is very good at exploiting the internal contradictions of the enemy.

At the end of May of the first year of Eiroku, Ashikaga Yoshiteru and Miyoshi Chokei clashed again, and with the support of Minami-Omi daimyo Rokkaku Yoshiken, he summoned the public to gather in the areas of Sakamoto, Katata, and Kuchiki. In mid-June, Ashikaga Yoshiteru and Rokkaku Yoshiken, Kuchigi Mototsuna, Akechi Mitsuhide and others set up a formation at Mt. Ruyi.

In order to regain control of Kyoto, Ashikaga Yoshiteru and Hosokawa Harumoto united with the lord of Kuchigi Valley, Kuchigi Mototsuna, and Omi guardian Rokkaku Yoshiken, and the Ashikaga army marched south from Kuchigi Valley with 3,000 troops.

The two brothers Matsunaga Shu and Matsunaga Nagayoshi, who were in Kyoto, and Miyoshi Nagakei's uncle Miyoshi Nagaitsu and others deployed in the south of Kyoto with 15,000 Miyoshi troops from Settsu and Tanba. Miyoshi Chokei also moved the residence castle of Akutagawa Mountain Castle to Toji.

After the two sides were in a state of anxiety, the Miyoshi Army took the lead. The Miyoshi Army, led by Iwanari Tomotsu and Ise Sadataka Kase, occupied the Shogun Yamajo Castle at the top of Mt. Guabu and began to renovate it.

At first, Ashikaga Yoshiteru was supported by Rokkaku Yoshiken, and the Ashikaga army was the first to have an advantage; But later, Miyoshi Changqing sent his younger brother Miyoshi Yoshixian to counterattack, and the battle situation reversed. The two armies clashed fiercely at Kita-Shirakawa, and the Miyoshi Army won the victory after taking 70 men under the command of Ashikaga Yoshiteru for public appeal. This battle is known as the 'Battle of Kita-Shirakawa'.

However, even if Ashikaga Yoshiteru was defeated, he still nested in Sakamoto Castle, which was built by Akechi Mitsuhide. However, the Miyoshi Army also knew that Omi was a mixed country, and there were many 'head villages' and 'head towns' in the Sakamoto area alone, and Katada was one of the representatives. Kita-Omi nominally belonged to the Asai family, while Minami-Omi was occupied by the Rokkaku family. In order to avoid fighting with the Asai family and their supporters, the Asakura family, Miyoshi Nagakei could only temporarily suspend the war with the Ashikaga army.

The news that the shogun was driven out of Kyoto by Miyoshi Chokei, the governor of Nagakei, soon spread to the land of Dongkoku. When Takeda Shingen learned of this, he immediately stopped attacking the last few castles of Okushinano, and he prepared to turn his troops to Nishi-Ueno. Takeda Shingen was not worried about the Higashi-Mino-gun being attacked by the Oda family, and he needed to build a strong defensive line in Nishi-Ueno.