Probably all genius scientists have an almost pathological search for knowledge, and the moral balance in Masao Yamamoto's mind soon tilted.

Gradually, a research team led by him was formed, mainly engaged in cracking the mysterious virus and exploring its possibility of genetic modification of organisms.

His team mainly studies those who have been accidentally infected by humans and experiments with animals, but he has more or less acquiesced to the fact that others have experimented with live people, and has been happy to accept the data they provide.

A large number of experiments in Japan were ultimately failed.

From the perspective of virus modification and utilization, the effect is very unsatisfactory, and it is still uncontrollable for what mutations occur after virus infection.

More than 99% of the subjects will become giants, and for giantized infected people, their survival can be successfully extended - up to five years and four months, the problem is their intelligence.

All the infected who become giants will have a serious reduction in intelligence, and from a military point of view, there is no possibility of training into ordinary soldiers, and there is no actual combat value.

However, the Japanese military has no intention of giving up, at least some of the bacteriological weapons and virus weapons they have developed are of great war value.

After the Japanese invaders occupied Northeast China, this secret and very dangerous organization was transferred from the Japanese mainland to Northeast China, and its full name was the 731st Epidemic Prevention and Water Supply Unit of the Japanese Kwantung Army in Manchuria. In China, it is generally referred to as Unit 731.

Initially, this unit was set up in Xinjiang Street, Pingfang District, Harbin City, and later expanded to Liaoning, Inner Mongolia, Hebei, and other places; with the expansion of the organization and the large increase in the number of researchers, for the sake of secrecy, this organization became more and more militarized.

At the end of World War II, the information about the 731 water supply unit was exposed one after another, and the water supply unit's tragic behavior of using Chinese civilians and allied prisoners of war to conduct biological and chemical weapons experiments caused an uproar in public opinion around the world.

While in China, Masao Yamamoto served as a "special staff officer" with at least three researchers, directing the research work of the headquarters and various branches.

According to Masao Yamamoto's memory fragments, Wei Qingyun and others discovered a total of five experimental bases of Unit 731 in Hebei, Liaoning, and Inner Mongolia, which were extremely large in scale, and were important evidence of Japan's invasion of China, trampling on China's sovereignty, violating international conventions, and using living people to carry out frostbite, bacterial infection, and poison gas experiments.

At this time, the Second World War had entered a white-hot stage, and Masao Yamamoto, as an "important scholar" who had studied in Europe and the United States and mastered many foreign languages, once again exerted his expertise, and went to Germany, Italy, Hungary, Romania and other fascist countries for exchange and study many times, and once again used multiple spy identities.

Until that time, Masao Yamamoto was still unmarried, not even in love, and was recruited into a secret research institute since his junior year, except for a few supervised study tours, most of his life was in a closed cage of creatures and viruses, bacteria and corpses.

Everyone who comes into contact with him for the first time can easily judge that he is a crippled person.

Even, the spies who have been in charge of taking care of his daily life and monitoring him for many years have spat out the truth after a drunken time -

Yamamoto-kun, you can't go on like this, this is not a man's life at all, compared to now, I prefer the days when I go on a study tour with you, at that time, you at least pretend to be a person. Hahahaha, you're a genius spy.

Every time he goes out, especially when he travels to other countries for a long time, the military department will specially compile an identity for him, in order to cover up his criminal activities in the study of viruses and bacteria, these identities are often married, with a virtuous wife, a lovely daughter or son, a happy family, and he himself is also a pampered appearance, with a generous temperament and a love of laughter, which makes it difficult to associate it with bacteriological weapons, experiments on living people, these words that are exclusive to demons.

Perhaps, he also felt the emptiness of his inner emotional world, and was very willing to play the script that those top spies planned for him, and he acted very devotedly and very successfully.

On one occasion, accompanied by the agent, Masao Yamamoto traveled to German-occupied Paris to participate in a secret academic exchange, and the troubled agent actually helped him catch a romantic war widow.

The woman was born in France, and not long after the war began, her husband was hit by a piece of shrapnel and returned to God. She herself is a person who can't stand loneliness, and she has long been accustomed to a happy life.

Masao Yamamoto also plays a humorous university professor who specializes in brightly feathered birds and beautiful butterflies.

He did his homework a lot, and he used all kinds of books, background knowledge, and humorous jokes that the spies had arranged especially for him. The two had not talked for a short time at a drinking party, and the widow had already been glamorous and fell in love with him.

However, the agents of the special high class did not teach him how to get a woman into bed, let alone how to seize the moment, they felt that such an old virgin who had been in the cellar for decades did not need that kind of technique, and besides, it was not a bad thing if he didn't mess around outside.

This is thanks to the accompanying agent, after all, after many years of getting along, he probably has some kind of special friendship with Masao Yamamoto, at least a kind of friend, with a little prank like "fulfillment", he cleverly arranged to fulfill the pair of men and women.

At first, Masao Yamamoto was only acting, but once he tasted the taste of a woman, he was out of control, not to mention that he was still a woman with all kinds of amorous feelings. While in Paris, he became entangled with the woman at every opportunity.

This is the first time he has jumped out of the script, adapted the plot by himself, and added a lot of scenes to himself.

Wei Qingyun guessed that these different spy personalities still caused Masao Yamamoto's schizophrenia to a certain extent, and after returning to China to restore his identity, the woman completely disappeared from his world.

However, that romantic and sweet time was not completely without effects, and it made him understand why in the eyes of others, he was a crippled monster, and why the spy would say that he had lived a life that was not what a man should have lived before.

The woman was like a match, lighting a fire in his barren and empty world, and making him think about something beyond viruses and corpses.

Such a beautiful accident brought a big blow to Unit 731.