With the intermarriage between races, whether it is a human, an angel, a demon or an orc, their genes are intertwined, and tens of thousands of years later, genetic defects follow.

The men and women of the four races began to have varying degrees of mental breakdowns and violent performances, and they were seriously prone to cannibalism and self-explosion, and the four races had to worry about this discovery.

The Demon Clan is smart and good at creating, and with their unremitting efforts, they have developed a potion, as long as the newborn children have special mental power fluctuations, they can transform them into a gentle healing type of mental fluctuations, and when this kind of child grows up, it can appease the people who are in a mental power riot, which can be described as the treasure of the four major alliances.

Chu Yulan traveled to this period-

After hearing some familiar names, I realized that I was wearing a book or a cannon fodder of the angel clan.

The male protagonist in the book, Fu Yanxi, is a demon clan whose family is ruined, just because his parents participated in a very important research, but the results were not good, so his parents didn't want to expose it, so they destroyed the scientific research results, which caused problems in all aspects, Fu Yanxi's parents were killed, and his entire clan was not pardoned, but Fu Yanxi left the demon clan under the protection of his parents' old department, but he was still discovered, and those who protected him died.

Fu Yanxi fled in embarrassment, jumped off a cliff when he was finally cornered, fell into the water and was rescued by the princess of the mermaid clan, just in time for his genetic defect to erupt, the mermaid princess cured him, and then brought him back to his own clan.

Fu Yanxi changed his appearance and went incognito, vowing to avenge his parents, and with the help of the mermaid princess, he improved his parents' scientific research results again, thus shocking the world-

Fu Yanxi's parents studied genetic atavism, and as long as they used that medicine, the genes of each race could be increased to more than 50 percent...... But at the same time, there are also flaws, such an existence does not live long, and it is easy to be unable to control the powerful power in the gene and be counterattacked.

Fu Yanxi researched a moderated version on this basis, and his parents' research was in place at one time, and he began to cultivate various races in the mother's womb in the way of cultivating his body and mind all year round.

Fu Yanxi's research was undoubtedly successful, and he was also invited by the four major alliances, he hid the hatred in his heart, and gradually grew into a powerful existence, until he was in an indispensable position in the alliance, and even recuperated and transformed his body all year round, and his genes were atavized to ninety-seven percent, which was the most perfect demon clan so far!

Fu Yanxi, who has strong strength and a strong position, overthrew the power of the demon clan, and became the leader of the demon alliance himself, because of his strong genes, he awakened the disgust for the angel clan in his bones, so under his careful planning, this race went into decline, and the beast clan survived because of the help provided to him by the mermaid clan, and the human race has become a slave of the demons......

The mermaid princess likes Fu Yanxi, but what she likes is Fu Yanxi, who is serious when she first meets and studies hard, instead of becoming such a Fu Yanxi, so when she became an adult, when Fu Yanxi came to ask for marriage, she refused.

Fu Yanxi was hit hard, he couldn't believe that she would turn his back on her, when the mermaid princess went on a blind date, there were many suitors around her, and everyone who could get close to her made him jealous......

In addition to intelligence and creativity in the genes of the demon clan, it is a strong possessiveness, he feels that his territory has been violated, so he secretly pokes and prodds at those people, but everyone can see that he is jealous......

Fu Yanxi's adjutant was under great pressure, and told Fu Yanxi that all girls would not like him like this, and it was also this that Fu Yanxi sobered up, and then realized how important the mermaid princess was to him, so he asked the adjutant to give him ideas, and then learn the methods of human beings to pursue girls, and it was also at this time that he felt that human beings were not so ignorant.

With all kinds of efforts, the mermaid princess saw his sincerity, and actually liked him in her heart, but she couldn't accept his too evil side, and after seeing his changes, she chose to be with him and transform him-

The demon Fu Yanxi, who fell in love, began to experience the sweet feeling, with the arrival of their child and the father, the seven emotions and six desires were reshaped, and slavery was abolished, and human freedom was restored, and they were not restricted from intermarrying with demons, because no matter how powerful the human genes were that could affect the genes of the demon race, he believed that he had a way to make up for the shortcomings, and the demon clan would always be the ruler of the entire alliance.

The mermaid princess retains kindness to humans, Fu Yanxi loves out of love, and develops a potion to improve human genes, with the efforts of humans, demons and beasts, the Zerg can no longer become a threat to them, and even with Fu Yanxi's efforts, they use the corpse of the Zerg to develop more powerful weapons and promote the scientific development of the whole world.

……

"Dressed as an angel who will eventually be wiped out, I really ......"

Chu Yulan, who was wearing a book, panicked, worried about her own life, and at the same time, she was affected by the thoughts of this body, because the angel clan cared about the race of her own race very much, and after she thought about herself, she began to worry about her own race.

"Saved the male protagonist before the female protagonist? Or just kill the male owner? ”

Chu Yulan thought about it and shook his head, the male protagonist can't be killed, he still has to study the method of atavistic genes, not only can't he kill, but he also has to watch him go on the original path, and then steal the results after the research is successful!

"If Fu Yanxi wants to become a demon of ninety-seven percent purity of his ancestors, it will take a long time to recuperate, as long as he gets his hands on the research results and then kills him when he is weak."

Chu Yulan carefully planned, and indeed got the research results and killed Fu Yanxi, but when her genetic purity was as high as ninety percent, her disgust for demons was also born from her heart, and she used the power in her hands to kill the demon clan, and for the beast clan, especially the mermaid clan, they all expelled the wilderness and fought against the zerg.

Even if the angel clan is genetically strong, physical defects still exist, and Chu Yulan is very hesitant to look down on them because of her genes for such a weak existence as a human being, because she used to be a human being.

But in the end, this hesitation was extinguished when she improved her genes day by day, and expelled the human race from the wilderness, and the entire alliance was only left with the angel race, and then when the zerg came one after another, the angel race could not resist with its own ability, so it was torn apart.

……

"Tsk." After Rogo crossed over, he saw the two plots, as well as the memories of the original body, and couldn't help but feel that this world was really a big drama, and it was very exciting.

"It's true that Fu Yanxi is a demon, he has also done a lot of bad things, but in the end, he can suppress the evil in his heart and lead the human race, the demon race, the beast race, and the Zerg race, this feat alone is enough to offset his former evil."

"Although the book wearer fought back for his own fate and race, he did not suppress the defects in his genes after he became strong, and made everything bad...... This is probably the difference between the protagonist and cannon fodder, right? ”

Even if they counterattack, they only stand on their own point of view, instead of considering the development of the situation around them, and make the best choice.