"Brother, can Yiya go out to play?" Illya took her sister's hand and walked up to Du Fei and said weakly.

In fact, Yaya, the little devil, was greedy for fun and wanted to pull Illya out, but Illya couldn't help her sister and had to ask Du Fei.

This girl changed into a very bewitching hairstyle, with four pigtails standing like forks, and then pouting her small mouth, not to mention how responsive she was.

Du Fei slapped his face, and he couldn't bear to complain about the special preferences of this little demon king, it was really a death that would not pay for his life.

"Okay, but be careful, don't just fight. Yiyi has to take care of her sister, and she can't eat indiscriminately outside. Du Fei pulled the two little girls and admonished, "And the girl, protect your sister, don't let others bully you, and come back quickly when you encounter danger." Also, remember to come back for dinner when you're hungry......"

"Hmph......" Yaya pouted and snorted softly, and then turned her face to the side, showing that she was not interested in Du Fei's rambling.

Du Fei looked at the little devil's awkward appearance, and couldn't help pinching her face. Not to be outdone, the little devil reached out and pinched Du Fei's face, and then pulled hard.

Du Fei used both hands, pinching her pink and tender faces on both sides and rubbing them around. Yaya jumped wildly and pinched Du Fei's face with both hands, pulling it to both sides, using so much force that the steel bars could pinch out fingerprints one by one, and Du Fei felt that his cheeks hurt.

The two pinched each other while twisting and staring at each other. The electric sparks in his eyes "clicked", and he was about to miss the gun.

Illya watched from the side, and Du Fei often pinched her face like this, so she always thought it was a very intimate behavior. Seeing that the two closest people showed such friendly behavior, they showed a somewhat natural smile, and then also stretched out their hands, pinching Du Fei's face with one hand and his sister's face with the other.

Du Fei was finally defeated under the siege of the two little demon kings, and had to let them out to harm others.

In the past two days, the two little devils have gone out for a walk a few times, and each time they have come back in a good time.

Because Du Fei had to go to find the third child and prepare to rescue the boss, he also had to explore the actions of the corrupted giant tree and the military region, and it would be a headache to have two little demon kings who were so capable of making trouble by his side, so he had to let them go out to play.

With the skills of these two little devils, there will be no danger outside, Illya is very cowardly and cautious, and she will definitely avoid danger when encountered. They will not kill everywhere like in their previous lives, thus provoking the military region to be bombarded by missiles.

And there is a spell that will react if Ilia is in danger, or if she uses a very strong force. So just worry about the unlucky ones who don't have eyes.

To Du Fei's surprise, the speed at which they hunted energy crystals was not slower than Du Fei's, and every time they came back, Illya would hold a handful of energy crystals and send them to Du Fei. It is estimated that Yaya, the little demon king, also likes to abuse those little zombies, and it can be seen in the Yueyu world that those tricks to bully the little monsters are endless, and they are definitely more demonic than demons.

Du Fei used the energy crystals they brought back to exchange a genetic potion for Yaya, but it took a lot of time to put the little demon king in a hurry when he injected the potion.

After the two little devils went out, Du Fei calmed down and checked the changes in the exchange system after the upgrade.

After the source ability is upgraded to level 4, the exchange system has opened the B-level exchange authority, and the standard price is 100,000 energy points, and some of the exchange items are more than 100,000, and even 200,000 are needed, which is quite expensive. It seems that the crazy hunting of zombies is going to start again, but now there are fewer and fewer zombies around the base city. And the monsters created by Pandora are not easy to deal with, if they are chased and killed by the evolution with a group of monsters, it is really not a fun thing, even if they are not afraid, they are afraid that they will be harmed, right?

In addition to the B-level exchange, there is also a high-level energy system in the exchange system, except that it shows that the energy density is insufficient, and then there is nothing.

After a cursory check of the exchange system, Du Fei went out to find Ouyang Xiu and the third child, after so many days, there should be some progress on the third side.

When she saw Ouyang Xiu, she was squatting under the tree and playing with ants, entertaining herself with an indifferent and cold feeling.

Ouyang Xiu has had a different temperament since the mutant wolf incident, at first he was crazy and wanted to find someone to vent, then he was strongly persistent and wanted to become stronger, and then he acted more and more fiercely and perversely, and now he was so bored that he used a branch to play with ants.

She has lost a lot of weight now, although there is still a little baby fat on her face that has not faded, but her figure has really improved. And there are no more cumbersome things such as breast pads, and I don't even wear a bra, I only wear a special operations camouflage, and the whole person looks much cooler.

It's just that so many changes, such a heavy thing, pressing on a fifteen-year-old girl, always makes people feel a little compassionate.

According to Du Fei's knowledge of her life experience in her previous life, he can probably guess some of her past. Ouyang Xiu should be the granddaughter of the Ouyang family, her father has a woman outside, and her mother swallows her anger. Ouyang Xiu has become more and more rebellious since then, resenting his father's ruthlessness and hating his mother's cowardice. Later she stabbed the woman outside her father, and then her mother was convicted. As a result, her father beat her mother severely and locked her up.

After that, it should be Ouyang Xiu's mother who took her daughter back to her mother's house in the demon capital and encountered the end of the world. Perhaps for this reason, it was Lin Zhen who came to pick up the two mothers and daughters, not Ouyang Xiu's father.

Ouyang Xiu didn't look back until Du Fei walked behind her, she was still playing with ants.

"It looks laid-back." Du Fei walked up and said casually.

Ouyang Xiu's spiritual perception had long known that Du Fei was coming, and when he heard Du Fei's words, he crushed an ant with a branch, and then said: "People are sometimes like an ant, if you are unlucky, you will meet someone like me, sometimes you will tease him, sometimes you will crush him to death." ”

"What did the ants say?" Du Fei asked seemingly ridiculously, but in fact, Ouyang Xiu could communicate with ants, any creature with a little bit of intelligence, she could communicate with it.

"They don't know anything, they just keep moving food into the nest, they don't even know why they do it, they're like a machine, repeating the same thing until they die." Ouyang Xiu stood up and looked at Du Fei before continuing, "So, why do you want to live?" ”

"I didn't expect you to have the potential to become a philosopher." Du Fei said indifferently. In fact, everyone has thought about these questions, and Du Fei has also thought about them, but this is a question that will never be answered. Du Fei had long stopped thinking about these questions because he had thought too much in his previous life.

"Philosophers, tormented oneself? It's very apt. Ouyang Xiu said with a self-deprecating smile.

"It's the one who tortures others." Du Fei said with certainty.

Ouyang Xiu seemed to have an understanding, and immediately turned his originally indifferent expression into seriousness, and said slowly: "I want the medicine you injected the little girl that night, let's make a price." ”

Du Fei's eyes froze, what Ouyang Xiu said was a genetic medicine. It's just how did she know about the genetic medicine?