What kind of demon king? Please call me the upgrade package of the goddess.

"what?"

"I didn't hear the reckoning, huh!"

Seeing Yuan's reaction, Isrena was suddenly embarrassed and angry. She snorted and turned to leave.

Seeing this, Yuan quickly added:

"Oh, I heard it, Nana!"

However, the response he got was still a soft snort.

Only this time, she was less angry and more delicate.

The name "Nana" should be the same as the name "Duoduo" for the girl Islando. It should be a nickname given to Islando by people close to her.

Looking at Islena who was gradually running away, Yuan couldn't help but curl up the corners of his mouth, and then he walked towards the northwest wall of the dungeon where the goblins were.

……

At this moment, at the edge of the dungeon, a group of goblins were gathered together, discussing what to build on this empty space:

"How about turning it into a farm and ranch? This way the owner can be completely self-sufficient in food in the future."

"No, the dungeon is not high enough now, so there is no way to create an artificial sun. Without the sun, plants cannot grow at all. I think it would be better to build some natural scenery first, such as ponds, hills, forests, etc., and then bring some creatures in. This will enrich the owner's entertainment activities and make the dungeon more lively."

"But the dungeon isn't big enough right now. Raising animals will affect the owner's life, right? And if there's no way for the animals to recycle themselves, the owner still needs to feed them food.

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"That's true, so what should we do..."

When several goblins were discussing the construction plan, Yuan walked over here. Seeing him appear, several goblins quickly flapped their wings and flew over, surrounded him and asked for his opinion.

"We need to build new facilities... How about building a massage center first? Then we can get some massage chairs, massage robots, etc."

"Massage center?"

Yuan's suggestion made the eyes of several little fairies light up. Although they liked working and would not feel tired no matter how long they worked, they would feel mentally exhausted if the working time was too long. Apart from their master, their usual ways of relaxing were taking a bubble bath, playing games and so on. They had never thought about massage.

Well, after all, these little guys have a pure working-class mentality. They only think about serving others, but never think about letting others serve themselves, so it is normal that they can't think of it.

So, after having the plan, the goblins immediately started working and built the massage center.

However, regarding the massage robot, the goblins felt that the robot was too old-fashioned without intelligence, and that robots with intelligence would be prone to problems, so they finally decided that Yuan would create a hack and recruit some massage goblins or something like that.

Then, Yuan took Ashe to upgrade the dungeon, buildings and facilities.

Soon, one minute later, the dungeon began to shake like last time, and its area increased by 100% again, which was the size of the four original dungeons. Now, the available open space was even larger.

Chapter 124: Sisters of One Heart

The sudden shaking of the underground city was not something that the girls who had experienced once would naturally make a fuss about. Those who had not experienced it also regained their composure after being comforted by others.

Just looking at the dungeon that is getting higher and bigger is bound to be shocking, but the little fairies are more motivated and work harder to transform the dungeon, waiting for the day when the dungeon is completely transformed into a small world by them.

After the dungeon was successfully upgraded, the number of monsters Yuan could send out to fight increased by two again. Together with the four garrison places brought by occupying the dungeons of Shadow Demon Girl and Florina, he can now fight a total of twelve monsters.

Now, the monster girls including Yiyi and Er'er are still in the battle position. There are still six vacancies. After Islena's fall is completed, she, Islando and Odona can be put in as well, which will just fill the melee and auxiliary positions. When the Extreme Shadow Lightning Rabbit and the Extreme Ice Wolf are resurrected tomorrow, they can be put in as well. The last position can be kept for the time being, and then the three girls, Lania, Millie and Kallen, can let whoever is needed depending on the situation.

The next step was to upgrade the Corruption Chamber and the Spirit Resurrection Chamber. The upgrade time was also one minute. Soon Ashe completed the upgrade of the two buildings. The attributes of the Spirit Resurrection Chamber were increased by 10% again, and the Corruption Chamber's corruption speed and resistance were increased by 10%. The sensitivity adjustment range was increased to 100%, directly doubling it.

The sensitivity has doubled... Hehe, I'll let Islena try the effect later~

After upgrading the main buildings, the others can be put aside for a while, so after recruiting two more fairies with Ashe, they were allowed to move freely, while Yuan found Islando who had transformed into an internet addict girl:

"Duoduo, let's go and play with your sister~"

"Hey? Accompany your sister?"

This girl wasn't around when Yuan and Islena made the bet in the morning, so she didn't know that her sister had lost the condition of the sisters working together. When she heard Yuan say that, she was obviously stunned for a moment, tilted her head, and looked at Yuan with a cute face:

"Mr. Demon King, aren't you afraid that my sister will go berserk? I have no problem letting my sister and I come together, but this may make my sister more resistant to you."

If you want to speed up the progress of depravity, you must break down the target's resistance. Either the target gives up from the bottom of their heart, like Odona and Kallen, or the target accepts or obeys from the bottom of their heart, like herself. Behaviors like Yuan's that may anger the target will greatly arouse the target's rebellious psychology and reduce the speed of depravity. Even if the body succumbs to happiness, the progress of depravity will not increase much. Islando, who has already completed the depravity, has a deep understanding of the progress of depravity.

Upon hearing this, Yuan picked her up and walked towards the Fallen Room, while confidently saying:

"Don't worry, your sister lost the bet with me, so she has to accept the joyful torture with you. It will be fine~"

"Eh? Betting?"

"Yes, your sister is afraid that you might get pregnant accidentally, so she made a bet with me. If I lose, I must protect myself from you before I can have sex with you. If I win, you two can play together~"

After telling Islando the general situation on the way, Yuan carried her into the Fallen Room.

Of course, when going in, Islando "struggled" to be carried in by Yuan. The little white silk ice cream kicked Yuan "hard" on the face, showing a very resistant look.

But what is her real inner thought?

"Hey, the defeated hero and the priest sisters were caught by the devil and forcibly played with, and then they resisted together, then became addicted, and finally they were defeated by the devil's powerful strength and revealed their Ahegao. This plot must be very interesting~"

This naive girl is even more capable than a succubus.

……

After an unknown amount of time, with their sensitivity increased by 100%, the pretty faces of the beautiful sisters in white silk who were hugging each other showed extremely erotic expressions at the same time, and they murmured to themselves with an obsessed look like two magical girls who were defeated in a monster's lair:

"I'm sorry, sister, I can't hold on any longer..."

"Well, sister, let's do it together!"

Then, the two sisters worked together, and in the dim room filled with pink holy light, their own beige holy flowers bloomed, and the sweet scent of the girls lingered in the room for a long time.

As the cultivator of this flower, Yuan couldn't help but sigh that the effect of double happiness is really strong~

And I don’t know if it’s because of the double happiness or because she’s with her sister, but Isrena’s corruption progress bar actually increased by 10% at once!

Although this growth rate is not that good compared to Islando and the others, for Islena, this is already the biggest increase in this period of time!

Then, after completing a CG of Ahegao's defeat with her sister, a pink heart pattern appeared in Isrena's beautiful eyes. She completely let go of her reserve and took the initiative to ask Yuan together with her sister, just like a magical girl whose YL degree reached the maximum value.

Seeing this, Yuan smiled and touched the sisters' heads:

"How about it? Do you like this method of torture?"

"I like it~" ×2

"If you like it, go ahead and do it. Remember to be more erotic~"

……

The morning passed quickly, and the girl, who was so ashamed that her body was dyed pink, finally escaped from the messy and decadent room and went to the bathhouse to wash herself.

Islena had never expected that the chair had such terrifying abilities that made her and her sister addicted to Yuan's power. If she hadn't had the last bit of sanity left, she would have given up her body completely.

As for her sister, after looking at Islando, who had love in her eyes still and was lying obediently in Yuan's arms, allowing the other party to bully her, an expression of regret appeared on Islena's pretty face.

If she had known earlier, she would have not made the bet with Yuanxia. Looking at her sister's condition, if it happens a few more times, she might really become addicted to the Demon King and unable to extricate herself. What's the point of her coming to save her sister then?

Moreover, the stinky devil didn't even take any protection. The stinky man's sweet words really can't be trusted. She even had some good feelings for this guy at that time, but it was all in vain!

Noticing Isrena's angry look, Yuan scratched his head in confusion:

"What's wrong, Nana? Why are you suddenly angry?"

"Hmph, who are you calling Nana? Please call me Miss Islena, you stinky devil who doesn't keep his word!"

"Uh...why do you say that?"

Yuan was a little confused by Isrena's sudden anger.

However, Isrena turned her head away and ignored him, like a sulky girlfriend.

Chapter 125: Islando's Ambition

There was no other way, Yuan could only forcefully hold Islena over. After coaxing her for a long time, Islena turned around and glared at Yuan who was still holding her sister, and said angrily:

"You promised me before that you would take precautions and not let my sister get pregnant, but did you do it? And you asked me why!"

"Ah? You're here for this?"

Hearing this, Yuan couldn't help but laugh:

"If you want to say this, then I won't break my promise~"

As he said this, he fed Islando some more candy in front of the angry Islena, which made Islena's eyes even more angry:

"you!"

She had already told him the reason, but he still came in front of her!

Just as Isrena's favorability towards Yuan began to drop rapidly, Yuan hurriedly said:

"Don't worry, Nana. Since I promised you, I will definitely not let Duoduo get pregnant."

Then, Yuan explained the reason to Isrena.

In fact, it is very simple. Although Yuan's candy has been eaten by Islando, his candy has the effect of improving strength after all. Therefore, after being eaten by Islando, it will be directly converted into energy form and then slowly absorbed. Therefore, no matter how much she eats, it will only be converted into experience points, and she will not get pregnant due to being frightened.

If you want to produce offspring, the mother needs to temporarily stop practicing, stop converting energy, eat sugar normally and preserve it, or you can achieve it by turning on the [breeding] function. However, the [breeding] function is only available to monster girls evolved from the Abyss, or beautiful girls who have fallen. Other people or monsters can only use the first method.

After listening to Yuan's explanation, Isrena's face always relaxed a little. After all, she had a deep experience of how candy was converted into energy every day. The experience points she gained from absorbing Yuan's candy during this period were almost as good as the effect of her practice for half a month. The additional attributes also increased by more than 40 points, which was almost equivalent to the gains from killing a demon king of level 70 or 80. So she still believed in Yuan's words.

"Are you sure Duoduo won't get pregnant unexpectedly?"

Leaning her head on Yuan's shoulder and glancing at her sister who was still showing a loving expression, Isrena was still a little worried, so she raised her head and asked Yuan another question.

It’s because Yuan’s sugar production is so huge. What if he eats too much and fails to absorb it in time, leading to an accidental shock?

If she really brings a nephew back home, her mother will probably collapse. Her two daughters have been missing for more than half a month. When they come back, one of them has a rosy face and the other is pregnant with an unknown child. Who can bear this?

Anyway, if you put yourself in her shoes, if her daughter were like this, she would definitely not be able to accept it.

"Don't worry, unless Duoduo wants a baby, she won't be able to get pregnant."

Seeing Islena's worried look, Yuan held her slender waist, grasped her plump and round breasts, practiced Tai Chi to comfort her, and then assured her:

"If you don't believe me, just wait for half a month to see if Duoduo gets pregnant. If she does..."

"How's it going to be if you get pregnant?"

Islena looked at Yuan, waiting for his next words.

Then I heard Yuan say with a playful smile:

"If you get pregnant with Duoduo, she will be my wife~"

"Fuck you, you want beauty!"

After biting Yuan's shoulder lightly, Isrena rolled her eyes at him unhappily.

There are many men who want to marry these sisters, so how could it be the turn of this stinky devil!

Then, she raised her hand and slapped away Yuan's big hand that was playing tricks on her. Islena supported her delicate body with one hand, and gently stroked Yuan's neck with the other hand, looking at Yuan with a "ferocious" look:

"Humph, Duoduo will definitely not escape the fate of being filled up by you in the next half month. I'll see if Duoduo will get pregnant. If she doesn't, it's fine. If she does, it proves that you lied to me. Women have a strong desire for revenge. Just wait and see how I deal with you!"

Her wet hair stuck to her delicate face, and water drops kept falling down her hair, landing on the upper body that floated out of the water. The crystal clear water droplets slid across her snow-white and smooth skin and slowly flowed into the valley. Her body was full of water vapor, making Islena's body look dazzlingly white under the light, and her skin was as tender as if made of tofu, looking extremely attractive.

Looking at this picture of a beautiful woman emerging from the bath, Yuan's eyes instantly lit up, and he once again wrapped his arms around Islena's slender waist, revealing a hungry wolf-like gaze:

"Okay, okay, I'll wait for you to deal with me, but before that, let this demon king enjoy you, the defeated brave lady~"

As he said this, he took Isrena's jelly-like soft lips into his mouth and began to savor them carefully.

……

In the next few days, Yuan basically cycled between the bedroom - the corruption room - the bathtub - the bedroom. Every day he was either in the bathroom or on the way to the bathroom, trying hard to increase the progress of Islena's corruption.

And because of Isrena's existence, Yuan's dungeon invasion time became shorter and shorter. After about a week, it had become once every two days.

And Islena's corruption progress: 75%

After reaching this point, Islena, who had become accustomed to it, could no longer improve her degradation progress through ordinary daily sex. Only by turning on the adjustable x-chair with a 100% sensitivity increase and using some torture props could she achieve a slight improvement.