Zheng Zhiguan searched the sea day and night for the shogunate's navy, and it was not until August that Zheng Zhiguan finally encountered the shogunate's navy in the Seto Inland Sea. Prior to this, Zheng Zhiguan had several opportunities to seize the shogunate navy, but they were all unfortunately missed. After months of fruitless searching, Zheng Zhiguan divided the fleet into three parts and continued to search for the shogunate's navy at sea.

After Zheng Zhiguan divided the navy into three parts, the navy of the shogunate felt that the opportunity came, and after this period of development, the naval strength of the shogunate grew extremely fast, and Zheng Zhilong's strength was greatly weakened due to the departure of Liu Xiang and others, and the strength of the two sides disappeared. Now Zheng Zhiguan has divided the navy into three parts, which makes the shogunate's navy think that they are not weaker than any of the three, but in fact they have a fatal weakness.

"The herald, if you win this battle, you will be rewarded with two taels of silver per person, and two hundred taels of silver will be rewarded for burning a ship of thieves." Zheng Zhiguan ordered.

"Wan Sheng, Wan Sheng!" The Kyushu Navy shouted.

This time, the shogunate's navy did not back down, but took the initiative to move closer to the Kyushu navy.

"Get the upper hand right away." Seeing that the shogunate's navy was approaching, Zheng Zhiguan ordered.

Zheng Zhilong's navy was almost all pirates, they have been at sea for many years, and have formed a set of fixed tactics, in history they have used this set of tactics to defeat the Dutch navy in the Battle of Liaoluo Bay, and control the entire Taiwan Strait. The Dongying people are different, and the long-term isolation of the country makes the Dongying navy extremely lack actual combat experience, and the battle is all based on courage.

Seeing that Zheng Zhiguan wanted to seize the upper hand, Matsuura Hisanobu immediately launched the navy to compete with Zheng Zhiguan for the upper hand. Matsuura Hisanobu was originally a daimyo of the Hirado Domain, but when Yan Siqi unified the island of Kyushu, he fled to Edo and became the commander of the shogunate's navy. The Hirado Domain is famous for its naval army, and Matsuura Hisanobu should be regarded as one of the generals who are most familiar with water warfare in Toei, but Matsuura Hisanobu is actually only a 65,000-stone daimyo, which shows that the naval army led by Matsuura Hisanobu only has the ability to fight in the near sea.

"Fire!" Zheng Zhiguan ordered.

As soon as the Kyushu navy opened fire, the shogunate's navy immediately launched a counterattack, and both sides seized the upper hand while shelling. But it was clear that Matsuura was in a better position, and he grabbed the upper hand first.

Although the Toei Navy purchased Dutch warships, there was still no big change in the tactics of war, and Matsuura Hisanobu seized the upper hand in order to quickly approach the Kyushu Navy and use the jumping combat method to combat in close combat.

Seeing Matsuura Hisanobu's tactics, Zheng Zhiguan was also stunned, and he immediately ordered: "Set fire to the ship!" "Zheng Zhiguan's purpose in seizing the upper hand is to set the boat on fire.

The tactics of the Kyushu navy are also very simple, in the Kyushu navy, the role of artillery is to cover the fireship, and use the fireship to defeat the enemy. In history, Zheng Zhilong fought with the Dutch basically had a trick that was necessary, that is, to set fire to the enemy's warships, and this trick, he tried it repeatedly, the Dutch suffered in Zheng Zhilong's trick, and later the Dutch also learned this trick to deal with the Spaniards and the British.

But in fact, this trick has great drawbacks, in history, Zheng Zhilong and the Netherlands have fought countless times, and the winning rate is extremely low, but Zheng Zhilong won two of the most critical naval battles, especially the Battle of Liaoluo Bay, Zheng Zhilong cooperated with the Ming army and released a hundred fireships at one time, and the overwhelming fireships burned so that the Dutch could not touch the north.

Now that Matsuura Hisanobu is actually moving closer to the Kyushu Navy, Zheng Zhiguan immediately released more than a dozen fireboats. Matsuura Hisanobu also knew that the Kyushu Navy had the habit of setting fire to ships, but he didn't know that Zheng Zhiguan would release more than ten fireships at one time, and obviously nearly half of Zheng Zhiguan's ships were fireships.

"Quick, aim at the enemy ships and fire." Matsuura Hisanobu shouted. He knew that he must not let the fireship come closer, and once he let the fireboat stick, it would definitely not be able to get rid of it.

The naval divisions of the shogunate were not professionally trained like the artillery of the Ming army and the Dutch, the level of their shelling can be imagined, and the artillery of the Kyushu Navy was slightly better than the artillery of the shogunate, but not much better.

This time, although the king of Kyushu recruited 50,000 troops from the Ming Dynasty again, many of them had a large number of artillery, but the operation skills of artillery were not popularized in Kyushu, and more importantly, there was no artillery academy in Kyushu, which made the technology spread very slowly, and the combat mode of the Kyushu Navy restricted the improvement of his artillery operation skills.

However, the arson tactics of the Kyushu Navy were more than enough for the shogunate's navy, and although more than a dozen fireships were sunk, thirty percent of them were pasted, and as soon as the fireships were pasted, the soldiers operating the fireships immediately hooked and set fires. The shogunate navy purchased a total of three warships from the Dutch, and one was already on fire.

As soon as several ships caught fire, the shogunate's navy panicked, especially since it included two large warships. At this time, the positions of the two armies changed, and Zheng Zhiguan finally seized the upper hand.

"One more fireboat!" Zheng Zhiguan ordered.

Zheng Zhiguan's second batch of fireships quickly rushed towards the shogunate's navy with the wind, and this time the situation was even more ideal than the last time, this time more than a dozen fireships, but only two were sunk by the shogunate navy, and the large warships that the shogunate was lit this time doubled to four.

This completely destroyed the morale of the shogunate navy, and Matsuura Hisanobu was already reluctant at this moment. And Zheng Zhiguan is getting more and more comfortable fighting, and the morale of the Kyushu Navy is getting stronger and stronger, Zheng Zhiguan's tactics have changed at this moment, and he is preparing to let the navy jump to the enemy's ships to grab the ships while shelling.

"Kill!" Zheng Zhiguan approached the shogunate's navy again, and Zheng Zhiguan gave an order, and the jumping soldiers of the Kyushu navy had already rushed to the enemy ship.

Although the shogunate's navy was demoralized, it was brave and good at fighting, and it was not inferior to the Kyushu navy for a while. After the shogunate navy burned several of its main warships one after another, it was already completely inferior in terms of artillery fire, and soon several of the shogunate's warships were seriously damaged, and one of them was sunk. This era is not like later generations with torpedoes, missiles and other weapons, and it is more difficult to sink a ship than later generations.

Matsuura Hisanobu saw that the defeat was decided, and finally made up his mind to retreat, and the Kyushu Navy won a complete victory.

At the end of the battle, the shogunate's navy lost nearly half of its combat strength, especially the loss of several large warships, which completely deprived the shogunate of the ability to fight a decisive battle with Kyushu at sea. Tokugawa Iemitsu decided to pursue a more radical policy of seclusion, and he even decided to dismantle the heavy artillery from his warships and equip the castle to guard against invasion from Kyushu.