After praising these masters, Engineer Li then gently informed Pei Yan of the drawbacks of his transformation, saying: "Precisely because your integration with the machine body has become tighter, when all your defenses are breached, leaving only the defense of the machine itself, and if it suffers fatal damage, you will no longer be unable to feel pain as before until the machine is disengaged to show aftereffects, but will immediately feel a real impact."

"Is that all?" Pei Yan retracted his waving arm and asked in confusion.

"Yes, currently, this is the only aspect where you are lacking compared to before!" Engineer Li spread his hands helplessly and said.

"Oh! What kind of drawback is that?" Pei Yan waved his hand nonchalantly and said, "Pain will be felt either way; it’s just a matter of timing. If I’m knocked down to the point where all outer defenses are lost, it means I’m at a life-or-death crisis. At that moment, whether I feel pain is no longer important. I believe I can overcome this pain and continue to fight."

After speaking, Pei Yan wanted to reach out and pat Engineer Li, but feared he might not control his strength well and hurt him. He raised his hand halfway and then withdrew it, with a slightly embarrassed smile saying, "Can we now start assisting me in mastering the new machine body?"

"Absolutely, no problem!"

In the following month, Pei Yan, with the alternating assistance of several Mechanical Masters, gradually understood the detailed process of his new machine body transformation. Every day brought new surprises! During this time, he also regained full control of the new machine body, achieving precise control of body strength and various actions. The only regret was that the space was too small and had limited bearing capacity, preventing him from testing each new function of the machine body to its maximum, leading to an unvented surplus of physical energy, and making him yearn more than ever for a thrilling battle.

During this period, the sect masters were not idle. After initially being concerned about Pei Yan’s condition for the first few days, in the following days, they left only one person to answer Pei Yan’s queries, with the others splitting into two groups: one to carry out transformation on Pei Yan’s mechanical avatar, Pei San, and the other to continue researching new schematics.

Upon completing training, Pei Yan once again became idle, only chatting with Engineer Li during meals at the boxed lunch times. Watching the sect leaders still engaged in research, he asked puzzledly: "Engineer Li, isn’t my transformation already completed? What are they researching?"

"Who said your transformation is complete?" Engineer Li, eating food ordered by the investigation department from the city’s best tavern, with a look of contentment on his face, returned to his senses upon hearing Pei Yan’s words, pushed his glasses with the hand holding chopsticks and asked.

"What else needs to be transformed?" Pei Yan looked at Engineer Li in confusion.

"Here!" Engineer Li raised his hand and pointed at Pei Yan’s left eye.

"My Mechanical Eye?" Pei Yan asked in astonishment.

"Exactly!" Engineer Li said, putting down the chopsticks in his hand, reaching out to hold Pei Yan’s forehead, staring intently at Pei Yan’s mechanical left eye with fascination: "The most complex, precise, and core part of your body is this eye. It was born when you suffered severe damage, saving your life and forming a close bond with you. This part is perfectly integrated with your body; without it, your life would be at risk!"

Retracting his hand and picking up his chopsticks, Engineer Li took a bite of food while murmuring: "Because it is too important and closely connected to you, every step of its transformation must be handled with utmost caution. Additionally, since it is your control core, encompassing the technology with the highest content from the foundation plane, these sect masters have encountered bottlenecks and need more coordination with us to formulate a perfect transformation plan."

Pei Yan watched Engineer Li express his uncontainable pride while speaking, and couldn’t help but smile slightly, understanding Engineer Li’s sentiments. When the investigation team initially arrived, the Mechanicians from various planes had somewhat overlooked this team, but the quality demonstrated during the transformation process won the respect of those masters. The team’s more scientific planning, precise calculations, understanding and learning ability on mechanical techniques, along with the use of various instruments aiding in perfect intricate installation work that even the seasoned Mechanicians struggled to achieve consistently.

These changes made the MechMasters, Alchemists, and Warlocks from three major planes truly acknowledge the strength of the civilization from the foundation plane. Through examination of these instruments, they depressingly discovered that personnel from the foundation plane’s equipment division, given allowance, could preliminarily grasp mechanical principles within ten to twenty years, and within a hundred years, perfectly integrate this technique into their technology. On the other hand, it would be challenging for the other three planes to learn the civilization of the foundation plane, even with more extended time.

This realization completely shattered their idea of recruiting these equipment division disciples as students, knowing that once these individuals learned mechanical techniques, they would no longer hold any advantage over the foundation plane in this path.

"So how much longer is needed?" Pei Yan thought about the transformation of his most crucial part, excited yet anxious, instinctively touching his left eye.

"You needn’t think too much about it; it will take a long time, with no results expected in less than a year or two. Before the competition, your transformation will definitely not be completed. Following that, there’s research and design of a Divine Artifact customized for you, leveraging the time flow acceleration here to finish the initial design work. It won’t take less than four or five years." Saying so, Engineer Li stretched lazily and said, "Ah, this Daoist Realm has magical aspects! Spending four or five years here may equate to just a couple of months externally, and when recalculated to our foundation plane–just two days! If that’s the case, our various research compared to departments will likely achieve breakthroughs in a short time!"

"But your lifespan also accelerates in consumption compared to them; essentially, it’s no different!" Pei Yan voiced guilt as he looked at Engineer Li: "Will you continue your research? Originally, having you expend three months more lifespan than external people already made me uneasy."

"Didn’t you also spend six or seven years here to stop the invasion?" Engineer Li remarked disapprovingly.

"I am different; I am a superhuman! Longevity! Besides, I am still young."

Seeing Pei Yan explain, Engineer Li waved his hand and said, "There’s no need to worry about us. Everyone staying here made this decision willingly!" Smiling, Engineer Li added, "Although I won’t live as long as you superhumans, barring accidents, we will certainly live longer than the average person!"