D-level males reached the pinnacle of life by living off women.

Holding Rhine's hand tightly, Lu Yuan felt sleepiness gradually creeping in as the swing chair swayed gently.

Lu Yuan slowly closed his eyes, letting his consciousness gradually sink into darkness.

Just as he was about to fall asleep, he suddenly remembered something and opened his eyes wide.

"My lord, what's wrong?"

Rhine, noticing Lu Yuan's actions, asked in confusion.

Lu Yuan didn't answer. He jumped off the swing chair and, ignoring Rhein's shouts, ran back to the villa in a flash.

Rhine was about to chase after him to see what was going on when he saw Lu Yuan come running back in a flash, with a silver crystal in his hand.

Lu Yuan presented the silver crystal to Rhine with both hands, as if it were a precious treasure.

"Rhine, quickly check if this silver crystal is useful, whether it can release mental energy."

Rhine looked at the silver crystal in his hand and asked with a smile.

"My lord, this is the silver crystal that caused you to fight with the insects."

"Yes, I went through a lot of trouble to protect it. You should check if it's any good. When I saw this silver crystal at the stall, I had the same feeling as when I saw the silver crystal on your ring before. I think this one might also be a treasure."

"No need to look at it, this silver crystal is definitely useless now," Rhine said without hesitation.

Lu Yuan scratched his head, puzzled, and asked.

"Why emphasize the present? What does that mean?"

Rhine told Lu Yuan that the reason why the Silver Crystal could release mental energy had been deciphered by Feynman before he returned to Golan Star.

First, Feynman has confirmed that the silver crystal on the Rhine ring is nothing special; it can release mental energy because all silver crystals have this property.

The reason why the silver crystal can release mental energy is the same as Rhine's conjecture: the silver crystal can absorb and store mental energy. When the stored mental energy reaches a certain threshold, it can release mental energy outward.

It is precisely because spiritual power needs to be stored up to a certain threshold before it can be released that this characteristic of silver crystal has remained undiscovered.

According to Feynman's experiment, to reach this threshold, the male insect needs to carry the silver crystal with him for at least a month, and during this month, the male insect must release his mental tentacles every day for no less than two hours each day.

Of course, the higher the level of the male insect, the shorter the time requirement may be. However, this is just a guess, since there are no high-level male insects on the Arach defense line for Feynman to experiment on.

When the Empire was researching silver crystals in the past, researchers would never dare to have male insects cooperate in experiments without clear evidence.

This time, thanks to Rhine's guidance and the fact that the lower-level male insects on the Arach defense line were relatively easier to talk to, Feynman was able to successfully obtain the experimental results.

Lu Yuan considered what Rhine had said in his mind, and then spoke in a somewhat uncertain tone.

"So, this silver crystal is actually a power bank, uh, a spiritual energy charging power bank. And the reason why the silver crystal on your ring can release spiritual energy is not because I bought a treasure, but simply because I charged it with enough spiritual energy."

Rhine: ......

Although the idea of ​​"recharging spiritual energy" sounded a bit strange, upon closer inspection, it wasn't entirely wrong, and Rhine could only nod with difficulty.

Seeing Rhine nod, Lu Yuan sighed inwardly. He thought his golden finger had finally arrived, but after all this time, he, a transmigrator, still hadn't gotten any benefits.

Ignoring Lu Yuan's dejected face, Rhine continued, "After the results of this experiment are published, the price of silver crystals will definitely skyrocket, so I'm preparing..."

Lu Yuan: "I know, I'll stock up on more silver crystals before the news comes out."

Rhine: "Buy a silver crystal mine on Golan Star."

The two insects spoke at the same time, then fell silent for a moment, before Rhine smiled and said...

"My lord, simply hoarding silver crystals won't solve the fundamental problem. Only by having mines in hand can we ensure that the supply of silver crystals to our household will not be interrupted in the future."

The moment he heard the conclusion of the Feynman experiment, Rhein was already thinking about how to maximize his own interests.

He asked Feynman to delay announcing the experimental results so that he would have enough time to buy a silver crystal mine before the other insects found out.

Lu Yuan thought about what Rhein said and realized that Rhein was right. Buying from others would be more convenient than buying from them.

However, he had never thought about it in this direction before. Although he was now a rich man on paper, he had been an ordinary person for so many years and his mindset was still not ready to change.

"But a mine must cost a lot of money, right? Do you have enough money at home right now?" Lu Yuan asked.

"Silver crystals aren't worth much right now, so silver crystal mines are relatively cheap. We should be able to acquire one or two hundred million," Rhine said.

In fact, Rhine's budget was much higher than that. After receiving news from Feynman, he disposed of some of his assets and currently has 500 million Star Coins in liquid funds.

He planned to use all 500 million to buy mines, but he was afraid that the number would scare Lu Yuan, so he first told Lu Yuan that it would be 100 or 200 million.

"in addition......"

Before Rhine could finish speaking, he took Lu Yuan's hand and led him back onto the swing chair, where he sat down beside him.

Then Rhine took Lu Yuan's arm and rested her head on Lu Yuan's shoulder.

"Furthermore, my lord, after I leave Golan Star and return to the front lines, I will entrust our family's silver crystal mine to you. You are the insect I trust most in this world, and I will only feel at ease leaving the mine in your hands."

Lu Yuan touched Rhine's hair.

"Okay, don't worry, I'll take good care of this mine."

"Before I leave, I will try my best to get everything sorted out. Then you just need to recruit another batch of miners and we can start production."

Lu Yuan paused in stroking Rhine's hair.

When he talked about miners, he couldn't help but think of the children in the orphanage.

He used to be absolutely opposed to using child labor.

His trip to Kokami Star made him slightly change his mind. For some children in orphanages, they need a job to make sure they have enough to eat and wear.

Since they were going to hire miners anyway, why not just hire some children from orphanages to work for them? That way, they could set up better working conditions and make the children more comfortable.

Moreover, Golan Star is not far from Kami Star, so the children can go back whenever they want.

The more Lu Yuan thought about it, the better he felt it was, so he told Rhein his idea directly.

Rhine didn't care; these were minor matters that Lu Yuan could decide.