I'm a monster in Demon King's Castle

Previously, Li Yue had wanted to use "Thorn of Decay" to help Egg achieve its obsession, but less than a day had passed since the last sword strike, and he hadn't had the opportunity to put it into practice. Google Search Reading

Now it was the next red hour, and he had actually forgotten to stab the egg—only by fulfilling Egg's obsession could he sign a contract with it. Li Yue certainly wouldn't miss the chance to sign an otherworldly demon.

Especially since Mento clearly harbored curiosity towards Egg, if he was even a little late, the egg might be gone.

At the same time, Li Yue also had a question—"Completion" didn't work this time. Could it be ineffective against actions related to otherworldly demons? No wonder the six blessings were divided into two groups; the first three were demon relics, and the last three were Mento's magic…

He couldn't rely too much on "Completion."

"How dare you be rude to the elder! Teacher! I'll teach it a lesson for you!" Li Yue's giggling sound rose, and at the same time, he sent a telepathic message to Egg.

—I'm here to help you.

"Ding!" Mento was stunned, as the tip of the bone sword stabbed the surface of Egg, emitting a clear sound of metal clashing.

Of course, Mento had enough ability to prevent all of this from happening, but he wanted to know what the two little demons were up to, and what their respective purposes were.

Gray-black death energy drilled into Egg's skin, mixing with magic and burning heartily; the bone sword arched slightly under Li Yue's full pressure, and even the self-healing bones in his right wrist and right shoulder showed signs of cracking.

However, Li Yue used all his strength and still could not make any progress—Egg seemed to be rooted to the ground, unmoving.

However, if Li Yue's telekinesis could reach the microscopic level, he could find that there was a tiny crack of about one-tenth of a centimeter on the breathing pores on Egg's surface. The crack was so small that it was difficult to detect, and although it didn't cause any damage, it did indeed cause a rupture.

Success!

"More! Yes! More! Again!"

Egg instantly burst out with extreme joy, as if its entire demonic life had been fulfilled.

A prompt instantly popped up in Li Yue's mind.

[A benign relationship has been established… Please confirm the details… ]

The Demon Illustrated Handbook seemed to be working in an easy-to-understand way. In Li Yue's mind, it was as if a contract had been generated—an ancient parchment began to appear, with terms, time limits… multiple contract contents were waiting for Li Yue to fill in and modify.

It's done!

Li Yue got Egg's first blood as he wished, and secretly rejoiced in his heart. He tried his best to calm himself down, preparing to look at the details given by the Demon Illustrated Handbook later… to see what room there was for him to maneuver.

And Egg was still in a state of excitement, constantly trembling, as if it was about to crush the dilapidated desk: "More! I want more!"

Seeming to dislike Egg's noise, Mento first looked at Li Yue, and seeing that Li Yue no longer had any movements, he gently flicked his finger…

"Dang…" A loud noise erupted on Egg's surface, and the metal layer seemed to turn into fluid, instantly rippling.

The ripples dissipated, and Egg fell into silence, no longer making a sound.

This is… knocked unconscious?

Li Yue was silent—his once-a-day "Thorn of Decay" only barely made Egg feel pain, but Mento knocked it out with one finger?

As expected of the mentor who taught the Demon Prince, and fortunately he was decisive enough…

Otherwise, with this one finger, let alone obsession, even the intention would have been knocked away, right?

He almost wasted a good helper…

"What are you happy about?" Mento quietly watched the scene in front of him, and also read Li Yue's joy. "Do you think that this egg will belong to you after this?"

Li Yue thought of the textile worker again, using a self-deceiving way to prevent Mento from reading his mind.

"It's useless. I will definitely take this egg away later. It's better for it to be with me." This time, Mento didn't give Li Yue any chance to bargain. "And you said one thing wrong."

"What's wrong?" Li Yue was still immersed in the joy of establishing a "benign relationship" with Egg.

"It is the elder." Mento pointed to Egg on the ground, which was trembling non-stop with excitement. "It has lived for at least two thousand years and is about to mature. The next stage is the most critical period…"

Li Yue knew that Mento was powerful, but he didn't expect him to be so evil—he only got some basic information about Egg by using the Demon Illustrated Handbook, but Mento saw through everything after only staying for a while?

And this egg… is already more than two thousand years old? What exactly is inside? Can it still be hatched?

"Don't think that your little 'mutation' is some amazing treasure. Compared to it, I'm more interested in your 'possibility'…" All the worms on Mento's chin suddenly pointed at Li Yue. "You, this otherworldly soul, you, this human."

Mento revealed Li Yue's true nature, immediately making him feel at a loss—he already knew?

Yes… After all, he was the Demon King's mentor who had taught several Demon Kings. Li Yue's little secret… it would be strange if he couldn't see through it.

"Since we've already said everything, then what exactly do you want?" Li Yue was no longer afraid of boiling water on a dead pig, and spoke even more unscrupulously.

"Like I said, the existence of demons is for the sake of high-ranking existences, so what do you think… what do I want?" Mento's motives were actually very simple and didn't conflict with Li Yue.

At least there was no conflict at the moment.

"My advancement is based on nurturing a Demon King." This time, Mento no longer avoided the weak brain spirit. "And you… do you want to be a Demon King?"

"A human soul, in the body of a brain spirit, becoming a Demon King… it's interesting to think about."

"And your promotion will become my nourishment, accompanying my promotion, it's that simple." Mento spread his hands, seemingly without any concealment.

Nurturing a Demon King to advance? This route is passive enough…

Li Yue made a slight evaluation in his heart, and then found a problem: "But haven't you already nurtured a Demon King? Many of them?"

"Many, or the current Demon King." Mento nodded. "The former city lord was defeated and died, and my power has also declined a lot. This won't do…"

"Then why don't you kill the city lord yourself and become the Demon King?" Li Yue asked carefully, addicted to finishing moves. "Isn't the current Demon King injured? You take him down and become it yourself."

Li Yue also wanted to take the opportunity to have a comparison of strength—which was more powerful, the injured Demon King or the Demon King's mentor whose power had declined?

"You've stumped me. Does my demon cocoon have his demon ass growing on his head? Didn't think of that?" Mento finally cursed.

Mento said it, but didn't explain, and Li Yue didn't know what exactly limited him.

"That's not right, you want me to be the Demon King, teach me promotion studies, and give me all kinds of blessings, I can understand all of this…" Li Yue found a place where Mento was being untruthful. "But why did you stop me when I was killing Budiboque?"

"Because… I still don't think you can bear the authority of the library." Mento seemed to be saying "It's the same now."

"But if you stopped me at that time, wouldn't I have died there? Where would there still be the possibility of becoming a Demon King?" Li Yue couldn't get around this logic. "Could it be that you're playing with me?"

Mento paused slightly, hitting the mark, but not completely: "No, Budiboque would have escaped at that time; and you, you can always find the next opportunity to kill him."

"But you just didn't want to wait, didn't want to wait, then there was nothing I could do." Mento had spread his hands more than once, and was also very helpless towards Li Yue.

Of course he couldn't wait. One more day of waiting meant the start of a new life would be one day later… That's what Li Yue thought.

Revenge couldn't wait overnight, and killing was best served cold.

"And what's about to happen next is far from what you imagine, and it won't be." Mento adjusted his sleeves. "But authority cannot be without an owner for a long time, you… are you ready?"

Mento knew that Li Yue had a need for authority, and this time he didn't intend to hide it anymore—after all, the candle under the throne was tilting, and once the current Demon King noticed it, not only would Mento's plan fail, but for Li Yue, even "death" would be a relief.

"I'm ready." Li Yue knew that what was in front of him was a forbidden fruit, but he couldn't resist swallowing it.