Personal actions should not be elevated to the level of martial spirits.

"What should I call this elder?"

On the way back, Chen Fu was curious about the old man who had appeared beside Old Mu at some point.

"My surname is Long. You can call me Old Dragon." Although the old man in black always had a cold expression, he softened considerably when facing Chen Fu.

"Hmm... cough, Old Dragon, are you also a level ninety-nine Peerless Douluo?"

This was clearly Old Mu's backup plan, brought in to counter the Dragon-type Soul Beast named Di Tian.

Di Tian's terrifying spiritual sense was like a black hole. If Old Mu had invited someone who wasn't level ninety-nine, Chen Fu would have suspected Old Mu had been replaced.

"Yes." Long Xiaoyao nodded, then couldn't help but ask, "Did you really create that Soul Tool for Ma Xiaotao?"

"Yes, Old Dragon. Do you have any doubts?" Chen Fu glanced at Old Mu, who was flying ahead with Ma Xiaotao, and he understood that this old man had been "invited" by him.

"You... what do you think of Evil Soul Masters?" After a moment of thought, Long Xiaoyao tentatively asked.

"Evil Soul Masters? Those Soul Masters controlled by their Martial Souls?"

"Yes, yes, yes. What about them?"

Chen Fu tilted his head back and looked at the old man in black who was flying while holding his collar. He scrutinized him from head to toe, making the latter somewhat flustered.

"What? Is there a problem?"

"How did Old Dragon confirm it was from the Martial Soul, and not from their true heart?"

"...Some Martial Souls amplify evil thoughts, just like that girl's Evil Fire Phoenix. Once cultivated to a certain level, it cannot be suppressed."

"The Evil Fire Phoenix is the second type, where the root of the Martial Soul itself has a problem."

"Are other Evil Soul Masters not like that? Wait, the second type? You mean?"

Long Xiaoyao was about to retort at this brat who showed no awe towards him, but he immediately realized that their understanding of the levels of Evil Soul Masters seemed to differ.

"I originally thought you were here for Melting Ring. I really didn't expect this to be your main concern."

Although Long Xiaoyao's aura felt somewhat dark to Chen Fu, it wasn't evil. He must have a dark-attribute Martial Soul.

"Martial Souls are composed of spirit and bloodline. Changes in bloodline are predictable, but only the spirit is unpredictable. Most Martial Soul mutations occur in the spirit, and the spirit involves some aspects of the soul."

Shrek City had already appeared in the distance. Old Mu took Ma Xiaotao back to the academy, while Long Xiaoyao followed Chen Fu into the Lin Pavilion.

He's not worried at all that I'll be abducted?

Seeing that Old Mu wasn't paying attention to him, Chen Fu couldn't help but inwardly complain.

"Regarding the induction of Martial Soul mutations, I did some research when I analyzed the Evil Fire Phoenix before. I planned to experiment on this girl later, but she refused."

Long Xiaoyao's gaze lingered on the girl's wrist as she was pushed aside by Chen Fu, feeling a hint of threat there.

"But without her knowing, I succeeded anyway." Chen Fu had never dealt with the root cause of Mo Ling's internal toxins, and had even installed a purification device on her wrist.

"Did not expect her to actually consume a Jade Phosphor Serpent Emperor's inner core," Chen Fu had to marvel at her luck.

"The phenomenon of post-natal Spirit Mutation is right before you, what do you think?"

Dodging the Hamster Charge skill the girl used, "Don't move around, this is a good thing."

The two options Chen Fu initially gave Mo Ling were actually two directions for Spirit Mutation. One was active mutation, gaining offensive abilities. The other was passive mutation, with toxicity focused on defense.

"What good thing? A while ago I discovered my toxicity was getting stronger, even my little hamster turned green!" Mo Ling's spirit projection appeared in her hand; the round, yellow-white hamster was now somewhat green.

"As long as you stay alive, it's fine. Collect the venom regularly, and all the toxins will form a perfect closed loop within your body. The longer you live, the safer you'll be." According to the plan, Chen Fu should have recorded Mo Ling's changes throughout, but he was delayed for a few days in the Star Dou Great Forest.

"But what will I do if I find a boyfriend in the future?" The little hamster despaired.

"Figure it out yourself."

Chen Fu turned and smiled at Long Xiaoyao:

"I've made a fool of myself."

The latter looked deeply at Chen Fu, then replied:

You mean, sometimes, Spirit Mutation doesn't even need to consider the will of the spirit's main body.

"Yes, so do you still think good and evil are matters of the spirit?"

Chen Fu used respectful language.

"What about evil spirit Soul Masters?"

"Give them a chance, forbidden to kill."

"What about post-natal evil spirit Soul Masters?"

"Leave none behind."

Chen Fu's tone was calm; those who stood above others could not be called human.

"...Do you know who I am?"

Long Xiaoyao was somewhat puzzled.

"Just guessed."

"Aren't you afraid I'll just kill you?"

Chen Fu remained silent, lying down and drinking the tea brewed from leaves he took from his embrace. He then took out a scale to cover it, preventing the tea from losing its heat.

"..."

"Old Mu trusts you to protect me, so don't beat around the bush. Speak, what do you want?"

Chen the Wish Machine Fu was online.

Long Xiaoyao's expression was somewhat grim. It wasn't that he felt offended, but this lack of flattery felt unfamiliar to him.

This young man actually didn't know his relationship with Old Mu, yet he seemed to have no defenses against him at all.

If it weren't for the fact that his demands would definitely require the support of a faction to be realized, he would have captured this young man and made him do hard labor.

However, Long Xiaoyao only had two factions he was on good terms with. Compared to the one he had always deeply loved, his former good brothers were more trustworthy.

"Can you solve the problem of Evil Soul Masters' Spirits?"

Recalling his scattered thoughts, Long Xiaoyao looked directly at the young man before him.

"With one case, will the general practice be far behind?"

Chen Fu didn't answer directly, instead posing a rhetorical question back to Long Xiaoyao.

"I mean a complete solution. Your current methods are just shortcuts!"

"The development of things must follow the law of gradual progress, right?"

Shaking his head, he ignored Long Xiaoyao and summoned Little Blue to check the data for this Soul Ring engraving. There were still areas for improvement in the details of the Soul Summoning Composite Matrix Technology, which were discovered and improved through repeated data simulations.

"Ten years."

Chen Fu did not keep Long Xiaoyao waiting for long, finally giving his reply.

"What do you mean?"

"Within ten years, I will give you a satisfactory answer, how about that?"

With a casual wave, he dispersed the soul power data model in front of him. Chen Fu had some ideas for the Second Generation Soul Ring Engraver, but they still needed time to be verified.

"...Alright, I agree!"

Although he felt Chen Fu could do it faster, Long Xiaoyao understood that compared to the tens of thousands of years others had failed to solve it, Chen Fu was already exceptional.

'Chen Fu's Elderly Support Group +1'

Chen Fu grumbled silently in his heart.

"Alright, find a comfortable place to stay yourself. Don't disturb me while I'm experimenting."

After giving his instructions, Chen Fu re-entered the laboratory, ready to test his new guess.

Inside the laboratory, Chen Fu was still the only one busy figure. In the Lin Pavilion, there were still... no, now there were two old men drinking tea.

"I didn't expect you to come looking for me on your own."

"I didn't plan to, I was just passing by."

"Heh!"

Thanks to my good brothers for the recommendation tickets.