From a materialistic point of view, we should not believe in the unscientific metaphysics of "fate", but in actual life, some people have some things that appear, but we have to believe in "fate". Some people are born with a bumpy fate and suffer from human sufferings; while others are born with good luck and a smooth life, which makes people envious; and the Kuroda Nagamasa to be talked about here undoubtedly belongs to the latter.
Kuroda Nagamasa's birth will make countless people envious, because his father was later known as the "First Army Division of the World", Kuroda Rumizu can be said to be an exhaustive strategy in his life, with extremely high military talent and diplomatic skills, and Takenaka Shigeharu and called "Toyotomi Two Guards", dedicated many classic battles, is the greatest contributor to to assist Toyotomi Hideyoshi to unify Japan. Moreover, Kuroda Rushui and Takenaka Shigeharu are very different, Takenaka Shigeharu has always been a military master, unable to become a daimyo, which is also his biggest regret before his death.
And Kuroda Rushui's wisdom seems to be higher than Takenaka Shigeharu, or he is much more selfish than Takenaka Shigeharu, he knows how to plan for himself and his descendants; he not only holds the position of military master, advising Toyotomi Hideyoshi, but he also actively tries to find ways to go to the front line to direct the battle, and the real calculation is that the "Kyushu Conquest" is the pinnacle of Kuroda Rumizu, because after this battle, Kuroda father and son got the territory of the six counties of Toyozen and became the daimyo of Toyozen 120,000 stones.
Although the area is not very large, the geographical location is what Kuroda needs, and it is far away from the court to have the opportunity to develop. But this is not to say that Kuroda Nagamasa was not in any danger, when Oda Nobunaga was still alive, because Araki Murashige of Settsu betrayed Oda Nobunaga, Kuroda Rumizu went to persuade Araki Murashige, but instead was caught and imprisoned; the successive betrayals of the courtiers made Oda Nobunaga begin to become suspicious, he thought that Kuroda Rumizu had also defected, so he sent Toyotomi Hideyoshi to kill the young Kuroda Nagamasa.
In fact, Toyotomi Hideyoshi did not want to kill Kuroda Nagamasa, why? Because Kuroda Nagamasa was sent to Oda Nobunaga as a hostage when he was seven years old, and Oda Nobunaga later sent Kuroda Nagamasa to Toyotomi Hideyoshi as a waiter, the relationship between the two was still very good. Moreover, Toyotomi Hideyoshi and Kuroda Rumizu have a very good relationship, and it is said that Toyotomi Hideyoshi once gave Kuroda Rumizu a "Brother Oath Paper", although it is not known whether this is Toyotomi Hideyoshi's act of buying people's hearts, but it can be seen that Toyotomi Hideyoshi's attitude towards Kuroda Rumizu.
Therefore, Toyotomi Hideyoshi was difficult to decide, so he knew that After Takenaka Shigeharu secretly hid Kuroda Nagamasa, he did not make a statement; but unfortunately, this matter was eventually known to Oda Nobunaga, and Takenaka Shigeharu died of illness in the midst of extreme fear of Kuroda Nagamasa's life and anger at Oda Nobunaga. Because of The death of Shigeharu Takenaka, and the fact that Kuroda Rumizu soon returned, and with the information that he had successfully persuaded Araki Murashige to surrender, Oda Nobunaga spared Kuroda Nagamasa.
After that, Kuroda Nagamasa followed Toyotomi Hideyoshi for a long time, and in the Battle of Mt. Takatake, he was rewarded with 450 stones in Hanoi; later, because of his merits in the Kyushu Expedition, he was awarded the title with his father, and served as the commander-in-chief of the Third Army in the two invasions of Korea, it can be said that at this time, Kuroda Nagamasa's status in Toyotomi Hideyoshi's heart was already equivalent to that of Governor Konishi and Kiyomasa Kato. However, his father was not happy, because Kuroda Rumizu knew that the invasion of Korea would fail, so he tried to dissuade Toyotomi Hideyoshi, which made Toyotomi Hideyoshi furious.
However, because of Kuroda Nagamasa, Toyotomi Hideyoshi did not kill Kuroda Rumizu in the end; but at this time Kuroda Rumizu was already disappointed in Toyotomi Hideyoshi and began to contact Tokugawa Ieyasu; others say that Kuroda Rumizu saw that Toyotomi Hideyoshi's life was imminent, and he planned for his future before he began to contact Tokugawa Ieyasu. In any case, Kuroda Rumizu guessed correctly again, and after Toyotomi Hideyoshi's death, Tokugawa Ieyasu began to stir, and eventually formed a situation of two opposing soldiers.
Kuroda Rumizu had his own plans, and he asked Kuroda Nagamasa to defect to Tokugawa Ieyasu while he was planning to divide the world in Kyushu. As a result, Kuroda Nagamasa performed extremely well during the Sekigahara War, when Takenaka Shigeharu's son, Takenaka Shigemon, was subordinate to the Western Army (Ishida Mitsunari's side), but Kuroda Nagamasa of the Eastern Army (Tokugawa Ieyasu's side) persuaded Takenaka Shigemō to communicate with the Eastern Army, and after the start of the great war, quickly changed the banner and joined forces with Kuroda Nagamasa, who was later captured by Takenaka Shigemune's courtiers.
In addition to convincing Takenaka Shigeki, kuroda Nagamasa also persuaded Hideaki Kohayakawa, who was heavily armed, and it was Hideaki Hayakawa's defection that caused is the complete collapse of Ishida's 30% side; a battle that should have been protracted ended dramatically because of kuroda Nagamasa's appearance, and the battle lasted less than a day. I have to say that the eloquence and luck of this Kuroda Nagamasa are really good, and the people who persuade him to surrender are important figures on ishida's 30% side, and they are also easy and successful.
However, because Kuroda Nagamasa was too good, Kuroda Rumizu was quite embarrassed, and the plan to seize the three divisions of Kyushu had just begun, and was forced to end prematurely; fortunately, he attacked the daimyo belonging to the Toyotomi clan, so Tokugawa Ieyasu did not blame him, and Kuroda Nagamasa was eventually enfeoffed with 523,000 stones in Chikuzen Domain due to his outstanding military achievements. Moreover, under tokugawa Ieyasu's arrangement, Kuroda Nagamasa married Tokugawa Ieyasu's adopted daughter after divorcing his original partner, and thus received various preferential treatment, although it was a foreign daimyō, but in fact there was no difference from the daimyō of the lineage.
One has to admire Kuroda Nagamasa's luck, it can be said that he has only encountered one crisis in his life; although he is not as smart as his father, his wisdom is not bad, otherwise he would not have become a key figure during the Sekigahara War. Whether it was Shigeharu Takenaka or Toyotomi Hideyoshi, or even Tokugawa Ieyasu was very good to him; it is not known whether it was his father's poisonous eyes or his own "Fuxing" aura, it seems that which side he was on, which side would gain the advantage (except for the Korean War).