I'm a monster in Demon King's Castle

Within the Demon King's castle, dungeons were everywhere. The dormitory was a dungeon, the warehouse was a dungeon, and even the tea room could become a dungeon…

However, there were three dungeons specifically mentioned by Oogie Boogie. One was the "Abyssal Maw," used to imprison powerful demons and various cursed creatures. The second was called "Pigsty," where heroes and nobles with some value were held, allowed to "redeem themselves" within a fixed period.

The third, where Li Yue currently found himself, was called "Vegetable Patch"—a simple large dungeon without powerful magic spells or curses. It was used to imprison captured humans, animals, and weak demons within the Demon King's castle who had committed offenses.

But just like its name, the "Vegetable Patch" was loosely managed, becoming a dungeon where skeleton soldiers carried out private tortures or had fun. Even low-ranking demons from the Demon King's castle would secretly trade here, buying humans for experiments, collectively known as "picking vegetables."

Based on past experience—low-ranking demons were placed in the Vegetable Patch for imprisonment. Thus, the five skeleton soldiers, with perfect understanding and unified steps, pressed their cleavers against Li Yue's brain groove and threw him into cell 187 of the Vegetable Patch.

On the way into the Vegetable Patch, an area filled with debris caught Li Yue's attention—there were various clothes, human coins, iron-like bran cakes, scraps of paper filled with writing, etc. They looked like miscellaneous items scavenged from the prisoners, waiting for unified incineration.

Sensing the prison door covered in thorny iron spikes, Li Yue breathed a sigh of relief—although his brain spirit's soft body couldn't squeeze through the gaps, a cell without spells or magic… was the perfect cell for Li Yue at this moment.

However… he was indeed underestimated…

Closing the cell door, the leading skeleton jingled the keychain back to his waist. The other four skeletons chased away the flies near the cell door, completely unaware that the success of this escort mission… was all thanks to those few flies.

"Let's go! If we're any later! The carnival will be over!" The leading skeleton finally completed the task, expressing his long-awaited excitement.

"Clatter clatter clatter! Let's go! Let's go!" The other four skeletons echoed, following the leading skeleton out the door.

"By the way, you guys be careful, don't pick this brain spirit when you're picking vegetables. Lord Oogie Boogie has a use for him!"

"Clatter clatter clatter!"

The sound of bones stepping across the ground gradually faded away, but Li Yue remained motionless, his mind firmly locked onto the fly perched on the thorny flower, pretending to be nonchalant.

[Analyzing… 84%… ]

Li Yue was completely certain that the analysis time of the Demon Illustrated Handbook was directly proportional to the strength of the analysis target. Obviously, among the characters he had encountered so far, the Demon King himself took the longest to analyze, followed by the burlap sack demon, Oogie Boogie.

As for small fries like skeleton soldiers, the analysis could usually be completed in a few minutes, and soon, Li Yue's idea was confirmed.

As for the other functions of the Demon Illustrated Handbook… especially the [Malice] points, Li Yue was not in a hurry to explore—for Li Yue, the opportunity to analyze a powerful demon was rare, and the benefits of analysis, in addition to the advantages for the individual, could also reveal a lot of information, further helping Li Yue understand this other world.

So Li Yue concentrated all his attention, trying to capture every move of the fly—several times Li Yue found it landing on the wall or the ground, "getting close" to the remaining blood stains or excrement, not knowing whether it was acting or instinct…

Thus, Li Yue ignored the screams and groans echoing in the dungeon, remaining silent under the gaze of the fly's countless compound eyes, as if asleep; while the fly was not so peaceful, besides occasionally wandering around this cell, it would occasionally change positions to see the situation of other prisoners, not knowing whether it was testing Li Yue.

Finally, the Demon Illustrated Handbook popped up with a prompt, and Li Yue released his mind and rested his brain.

[Analysis complete, Demon Illustrated Handbook records 093—Oogie Boogie]

Both 093 and "Oogie Boogie's" name were displayed in gold, highlighting the uniqueness of this burlap sack demon.

[Oogie Boogie; Distribution: None; Lifespan: 1000 - ? , Theoretically infinite based on the regeneration/replacement of the main body's flies/materials; Habits: Chaotic and disordered, greedy and brutal, unwilling to be under others, also good at lies and deception; Hobbies: Gambling / Torture / Banquets; Skills: Flies / ? ? ? , Insufficient analysis samples, to be improved; Action prediction success rate: 87.3%; Weakness: Hellfire]

[Birth Record: Born from the shadows behind gambling games, composed of flies that gnaw on the corpses of gamblers, brokers, big shots, killers… and blood-stained burlap sacks… ]

[Millennia of greed have made it incredibly crave "more"—more happiness, more fall of life, more blood left by unfair games… ]

[Perhaps one day, it will also put on human skin and invite you to the game.]

The amount of information was huge, and Li Yue had to digest it carefully.

First, Oogie Boogie's name was gold, and its description was not as broad as the magic wolf or skeleton, but was very targeted… Did this mean that Oogie Boogie had transcended "a certain type" of demon and become a special existence?

It seemed that its "within one hundred" number… also confirmed this point…

Second, according to the description, Oogie Boogie's body was composed of flies and a burlap skin, and it could be replaced, thus achieving a theoretically infinite lifespan? So what were the methods and principles of replacement?

Could it be a being so powerful that he couldn't resist it himself?

Was this the ironclad King of the Arena…

Third, the skill aspect was insufficiently analyzed because the Demon Illustrated Handbook only analyzed a fly in its body, so it couldn't get complete information? Then why could it be included?

If you encounter a powerful demon, analyze it for a long time, and finally a bunch of question marks pop up, what's the use?

Or is it… that the completeness of the analysis is related to one's own strength?

Li Yue left a question here, waiting for further verification in the future.

"Action prediction success rate" and "weakness" were relatively easy to understand—Oogie Boogie was composed of countless flies. If they were all flies that had survived for hundreds of years, it wouldn't be strange to have individual consciousness, and it wouldn't be strange to be burned to death by hellfire.

The problem was… what was hellfire?

Obviously, the Demon Illustrated Handbook was not thoughtful enough to this point. "Hellfire" could only be discovered by Li Yue himself in the future.

Finally, unlike the previous two analyzed demons, Oogie Boogie had an additional "Birth Record," which not only revealed a lot about its origin, but also directly proved Li Yue's first guess—Oogie Boogie was a special existence, perhaps the demon scribe who guarded the vault was the same?

Powerful demons all have exclusive numbers and gold display?

In Oogie Boogie's Birth Record, Li Yue guessed that this burlap sack demon might have been born in the human society of this other world… After all, the technique of putting someone in a sack and killing them seemed to be a relatively traditional method in his own world; coupled with the description of flies "gnawing on the corpses of gamblers and big shots," it all pointed to a dirty and lively carnival place.

It was just a pity that the brain spirit's memory contained little content about the human society of this world, making it difficult for Li Yue to associate it based on this.

After reading Oogie Boogie's related content, Li Yue looked back at the picture displayed with the text on the Demon Illustrated Handbook—the "Oogie Boogie" in the picture frame was grinning at him, as if saying "Pay the money"; suddenly the style of painting changed, Oogie Boogie released the flies in the burlap sack, setting off a black and oppressive small tornado, and then he himself became much thinner.

Lifelike… Li Yue gave his own evaluation while looking at the Demon Illustrated Handbook.

Next, it was time to study the other functions of the illustrated handbook… but before that, there was still a fly to be solved.

Li Yue remained motionless, opening his senses, feeling everything in the surrounding five cells, looking for a way to kill the fly—it wasn't that Li Yue didn't want to directly crush it with his mind, but doing so would easily make Oogie Boogie associate something unfavorable to himself, so…

So it was best to let this Oogie Boogie's eyes and ears… die a natural death.

In a matter-of-course way.