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

Rhein carried Lu Yuan back to bed. His anxiety and worry subsided slightly, and his intelligence returned. He naturally connected Lu Yuan's condition with his own abnormality.

Although he had never received mental soothing, he had heard from other insects that if a male insect came to soothe him during a mental storm, he would not feel pain during the storm and would not feel uncomfortable after the storm ended.

At the beginning of the riot, he felt the same pain as before, but it seemed that the pain gradually decreased, and when he woke up, he did not feel as uncomfortable as before. All these symptoms matched up.

To confirm, Rhine entered his own mental sea. Sure enough, the cracks inside had decreased significantly, and many of the shallower cracks had healed, leaving only some of the deeper cracks.

All these signs indicate that his mental state was soothed by spiritual power, and at that time, only Lu Yuan was able to soothe him with spiritual power.

But how did Lu Yuan manage to do it? Theoretically speaking, given Lu Yuan's level, it would have been impossible for him to successfully appease him.

The reason why it is said that it is difficult for low-level male insects to appease high-level female insects is because practice has proven that the mental power of low-level male insects cannot cause the cracks in the mental sea of ​​high-level female insects to heal.

Does this mean that Lu Yuan is not a D-level?

Impossible. Everything else in the Empire can go wrong, but the results of the ranking assessment cannot be wrong. This is the cornerstone upon which the entire Zerg society operates.

Moreover, Lu Yuan had told him that he could only release one spiritual tentacle, which was a characteristic of low-level male insects.

So, Lu Yuan must have some little secret that he doesn't know about.

Rhine gazed intently at Lu Yuan with a deep look in his eyes.

My lord, what are you hiding from me?

......

When Lu Yuan woke up, he felt a splitting headache. As soon as he made a sound, Rhein came in.

"My lord, how are you?"

"It's nothing, just a terrible headache," Lu Yuan replied, rubbing his temples.

"Rhine, are you alright? Are you feeling any better after that mental disturbance?"

Lu Yuan was eager to know if his efforts had yielded any results.

Rhine's eyes flickered.

"I feel a little better. It's strange, but towards the end of this mental storm, I don't know why, but it suddenly didn't hurt as much."

"Really? That's a good thing."

Lu Yuan was secretly pleased, which proved that the textbook was useful. He would continue to train and try to fill in the cracks in his Rhine mental sea.

"By the way, my lord, how did you end up lying on the ground with such a terrible headache?"

"It's nothing, I just ran out of mental energy. I'll be fine after a rest."

Lu Yuan answered without hesitation, and then he froze.

"Really? Then, could you explain to me why your mental energy was completely depleted?"

"Uh, this..."

Lu Yuan's mind raced, trying to decide whether to tell the truth or find an excuse to fool Rhine.

"My lord, don't try to fool me. You know you can't fool me," Rhine said in a chilling tone.

Alright, so Lu Yuan told Rhine about how he had been training his mental strength using that textbook over the past few days.

Lu Yuan's voice grew softer and softer as he spoke, and Rhine's face grew increasingly pale as she listened, until finally her entire face turned ashen.

"That's how it is. But in the end, the textbook was still useful. It didn't deceive you. I successfully calmed your mind this time."

Lu Yuan concluded the matter in a voice barely audible. He knew that Rhine looked upset because she was worried about him, and he himself felt a little guilty, so he quickly said something to comfort Rhine.

"Lu Yuan, are you crazy? Do you even have a brain?"

Rhine could no longer suppress his anger and unease. He spoke loudly, adopting the same imposing manner he used to show his subordinates, which startled Lu Yuan.

"A book picked up from a garbage dump, its authenticity is completely unverifiable, and you dare to practice it without telling anyone."

"You know how important mental strength is to male insects. What if your mental strength is damaged because of it? What if you die because of it? Did you think about these things before you started training? Did you think about what I would do if something happened to you?"

"I already told you I had a way to deal with the mental disturbance, why did you still take the risk?"

......

Rhine lectured Lu Yuan for a long time. At first, Lu Yuan listened with a guilty conscience and occasionally admitted his mistakes in hopes that Rhine would calm down. But later on, his expression became more and more unpleasant, and he also felt wronged.

He knew, of course, that it was risky, but who was he doing it for? Wasn't it all for Rhine?

If there is a way to help Rhine right in front of him, but he is afraid to try it because he is afraid of taking risks, and would rather watch Rhine suffer, then what right does he have to be Rhine's other half?

And in hindsight, his risk was well worth it; he successfully appeased Rhine.

Since the outcome is good, why dwell on the process? Did Rhein really need to say that about him?

Lu Yuan was also seething with anger, and when he heard Rhine tell him to throw away the textbook and never practice again, he finally exploded.

"I won't throw away the book. Since the methods in it are useful, I will continue to practice them."

"Why aren't you awake yet? You've only been practicing for a short time. How can you prove that the book is effective? What if it was just a coincidence that it had this effect? ​​If there really was a book that could improve mental strength, how could the entire empire be completely unaware of it, and you just happened to find it?"

"I don't care, I've made up my mind. I'm going to continue refining. Since I'm your master, I can't just stand by and watch a mere insect like you suffer. Alright, let's not talk about this anymore. I have a headache and want to sleep. You can leave now."

After saying that, Lu Yuan lay down, turned his back, and stopped looking at Rhine.

Rhine stared at Lu Yuan's retreating figure for a long time, then sighed as if giving up and left the room.

He knew perfectly well that Lu Yuan's ability to achieve such results meant that the textbook was very likely useful.

But he didn't want Lu Yuan to gamble. He would rather endure the pain of his mental turmoil than let Lu Yuan stay peacefully by his side.

Moreover, even if the textbook is really correct and Lu Yuan masters it, it might not necessarily be a good thing for him.

As the first D-rank male Zerg to be able to appease high-level females, if other Zerg finds out about this, what awaits Lu Yuan is not necessarily flowers and applause, but also endless conspiracies and traps.

No matter how powerful he is, he cannot contend with the entire Zerg Empire, and he may very well lose Lu Yuan because of this.

So, just to be on the safe side, he still wanted Lu Yuan to give up.

From that day on, the two insects entered a long period of cold war.