"Thanks for gathering per my request. We will now proceed to the highest level of the building, where the afterparty shall take place."

After instructing everyone where to move after the auction, I waited at the entrance to verify the eligibility of the guests. Even if that wasn't going to be much from my perspective, if even two additional guests slipped inside due to my carelessness, there wouldn't be enough dildos to show them this breakthrough technology!

When I confirmed that everyone has already gathered, I guided everyone to the staircase. Leading the long column of the people upwards, I made a small stop before the only doors that lead to the uppermost floor.

Yes, I know that creating a place with only one entrance was an insanely risky plan in terms of fire safety, but thankfully, this world didn't have any institutions that could fine me for it!

"Everyone, welcome to the paradise land!"

When everyone already reached the small platform before the doors, I placed my hands on the special lock and pushed the doors open.

As soon as the entrance moved aside, the guests could see the pinnacle of my artistical abilities. With the main hall consisting of most of the free space, it was kept in dimly red colours thanks to the special membranes that covered all the light sources inside.

While there were doors leading to twenty diffrent rooms, orderly placed in even distances at the wall opposite to the main entrance, only ten of them had a shining vibe around them, indicating that they were in the service.

With a total of eleven dildos that I managed to make, ten of them would be used by the guests in their private chambers, I still kept one of them - the one I created for my private use with Eve and Lucia - for the sake of presenting its use and capabilities.

"Ladies and gentlemen, please, have a seat. I would like to present to you the thing that I claimed to change the entirety of your world!"

Pointing my hand at the row of comfortable, deep chairs that were placed in a half-circle between the main entry and the private chambers. While I could see some dubious looks on the face of the guests, as soon as they sat down, I started the show.

First, the unusable rooms suddenly opened, allowing the mass of pretty girls to enter the main hall with various refreshments, foods, and snacks. This was just a first part of softening their expectations to what I would show while accustoming them with the sight of this beautiful but weak women.

"As everyone knows already, there is a tradition of betting one's yin or yang essence on the duels. This custom spreads to even offering other people essences, as long as they are in some way connected to the duelling person. I think it's safe to assume that everyone here knows about this."

Seeing the crowd nod their heads while they reached for the glasses filled to the brim with the best wine I could find without paying any mind to the price. Some of them even started to snack on various sweets that I prepared in advance, but teaching the hired cooks some recipes I remembered from the earth.

"While I can't condone to forcing people into sexual relationships just for the sake of dual cultivating, I do recognise the need of exploiting this way of harnessing the energy. I think some of you might start catching up with my idea already."

Actually, the whole idea behind harnessing the essence wasn't that complicated. The main hurdle that stopped anyone else for implementing it, was most probably either the lack of skill, idea or the wits to do something like this. After all, even if an independent craftsman managed to do something similar, without promoting it through the main powers of the city, it would remain just a novelty.

If I wanted to make it popular, I had to propagate it through the main sects of the city. But to convince them, I had to bring some points that would speak directly to their own interest!

"Just like some of you might already understand, I created this piece of art."

Taking out my personal dildo - ignore how does it sound, by personal I mean for the personal use of my partners! - I waved it in front of the eyes of the crowd.

"I think you can get the main way of using this item just from its phallic shape. But what did I mean by bringing it up when speaking about the problem of harnessing the essence? Let me explain."

While it pained my heart to do so, I took out a small knife that I made sure was sharp enough to do its job and cut the entire item in half. With how much money I made from the auction, I would be able to use the best possible materials from the city market! There was no point sticking to this prototype!

"During the usage of this item, that I dared to name 'Harvester' the fluids that woman produce while exerting her yin essence are collected, with the essence sucked by the crystal inside. After the deed is done, a customer can simply press this button to the point of shedding just a droplet of blood. When the connection is established between the bloodline and the crystal, the yin essence will rush to the customer, allowing him to absorb it not only without any need for sexual intercourse but also at a higher efficiency than in your usual dual cultivation, not to speak about rape-like intercourse that people engage thanks to the duels!"

It came without saying that the more harmonious the process, the greater the effects would be. When males were forcing themselves on unwilling girls that had to offer themselves thanks to the bet, there was no harmony to speak off, just pure brutality that forced the flow of the essences. Even during normal, loving or at least willing act of two sides, there were always some distractions or quirks that managed to break the perfect exchange and flow of the essences.

Thanks to eliminating the need for a partner, one could simply indulge in the lust building activities with anyone of their choosing, without paying any heed to their level!

"At this point, you might ask me, what is the point of supporting this idea. And this is where we are reaching the world-changing stage!"