Japan was able to recover after the war because it no longer needed to give money to Korea.

The following is from the book published on 2/28/2015 by Masayuki Takayama, which is mainly a collection of editorials from when he was writing anonymously at the request of the Editor-in-Chief of "now and then," which opens the monthly magazine Sound Argument.
It is a must-read not only for Japan but also for the world's people.
Everyone will be amazed at the sharpness of his tongue as he reveals and conveys the truth to us.
It is no exaggeration to say that this is his best book regarding sharpness of argument.
A long time ago, an elderly female professor of the Royal Ballet School of Monaco, highly respected by prima ballerinas worldwide, visited Japan.
At that time, she spoke about the significance of an artist's existence.
She said, "Artists are important because they are the only ones who can shed light on hidden, concealed truths and express them."
No one would dispute her words.
It is no exaggeration to say that Masayuki Takayama is not only the one and only journalist in the postwar world but also the one and only artist in the postwar world.
On the other hand, Ōe, I don't want to speak ill of the deceased, but (to follow Masayuki Takayama's example below), Murakami and many others who call themselves writers or think of themselves as artists are not even worthy of the name of artists.
They have only expressed the lies the Asahi Shimbun and others created rather than shedding light on hidden truths and telling them.
Their existence is not limited to Japan but is the same in other countries worldwide.
In other words, there are only a few true artists.
This paper is another excellent proof that I am right when I say that no one in the world today deserves the Nobel Prize in Literature more than Masayuki Takayama.

Japan was able to recover after the war because it no longer needed to give money to Korea.
In his book "The End of History," Francis Fukuyama praises white Christian culture despite having no drop of white blood in his veins.
He may need to be a bit sycophantic to survive in a white society, but he goes so far as to show his disdain for his homeland, Japan.　
Compared to the U.S., for example, "Japan is intolerant and does not accept strangers."
Which country is so thoroughly intolerant that it kills all Indians and uses enslaved Black people instead of cattle and horses without any remorse?　
In the second sentence, he contrasts the "advanced Britain and the U.S." with "lagging Japan."
Japan and the U.S. entered the Industrial Revolution in the late 19th century, one in the form of the Civil War and the other in the Meiji Restoration.
History from the white man's point of view is not the only history.　
In his book, he emphasizes the affluence of the United Kingdom, which was the first to achieve the Industrial Revolution. He writes, "By the mid-18th century, the income level of the United Kingdom exceeded that of the Third World today."
It is too favorable.　
Britain was taxing everything from salt, sugar, and tea to windows and soap.
The window tax, in particular, earned as much as 2 million pounds a year and at one time rivaled opium revenues from China.
For this window tax, people smashed windows.
Especially in prisons, the guards were obliged to pay the tax, so most windows were blocked, and the dungeons were dark.
Soap was expensive, so they seldom took a bath.
It was dark and filthy in those days, according to Liza Picard's "Private Life in Eighteenth-Century London.　
In the 19th century, however, things changed.
Jamaica's coffee and sugar plantations using enslaved Black people were profitable, India obediently paid the salt tax, and China's opium revenue exceeded 5 million pounds.
In addition, native tea was found in the Burmese territory of Assam, and the British took it, turned it into a colony, and even began exporting Assamese tea.　
Thus, the salt tax, soap tax, and window tax were abolished in Britain.
The New York Times reported a few years ago that "every London family at that time had a live-in maid."　
In addition to the salt tax that angered Gandhi, the three central colonial taxes were per capita and liquor taxes.
However, in French Indochina, "marriages, births, funerals, and even going to neighboring villages were subject to taxation.
(A. Violis, "Indochina SOS").　
The French originally envied the British opium trade and took over French Indochina.
As soon as they colonized the country, they set up opium monopolies in every city and sold opium to them.
The country has also become a seller when it comes to making money.
It enriched France, and, like the British, most of the taxes, such as window and salt taxes, disappeared.　
After the war, de Gaulle shamelessly appealed to Roosevelt for the continued possession of the French seal to "rebuild a glorious France," and Roosevelt granted the request.
It is how colonial management should be, but there was an exception.
Japan.
Before the Sino-Japanese War, Japan taxed even sake, confectionery, and soy sauce to pay for the war.
During the Russo-Japanese War, it also taxed sugar and oil.
Japan continued to be taxed like the people of Western colonies.　
Japan won World War I and, as a result, gained Korea, Taiwan, and the South Seas Islands, but the inflated taxes remained for some reason.
The reason was the colonies.　
The West reduced taxes on its colonies by squeezing money out of them, but Japan, on the contrary, gave cash to Korea and Taiwan.
In particular, Japan started by building schools, electricity, and railroads in undeveloped Korea.
Japan spent as much as 20% of its national budget for this purpose.　
Then came the last war.
Although Japan was left with only burnt ruins, it quickly became the world's second-largest power, partly because it no longer had to bear the burden of the Army and Navy, but more importantly, because it no longer had to pay for Korea and its colonies.　
Now, national reconstruction has been completed.
The military has been reduced to 1% of GDP, and no colonies can eat the money.
There should be no more reason to keep taxing taxation like colonies, but liquor and petroleum taxes remain.
On the contrary, taxes such as the provisional gasoline and nursing care tax rates are increasing.　
We all know why.
The bureaucrats' particular corporations and an overabundance of Diet members have become money-eating insects that now outnumber the 55 divisions of the Army.
And then there is Korea.
Six hundred thousand zainichi are either running pachinko parlors or living on welfare.
Now, more than 20 trillion yen of Japanese money disappears annually.
In addition, South Korea, whose economy is in the process of collapse, has been begging for 5.4 trillion yen in the form of a currency facility.　
To make up for this, Prime Minister Yoshihiko Noda is going to raise taxes while keeping the Japanese people under the colonial tax system.
Before making a fool of yourself, you should insulate yourself from your former colony, which cannot shake off its prewar sponging.