I'm a monster in Demon King's Castle

The sound of metal clashing against metal rang out, but the Bone Throne didn't budge an inch.

However, the magic within the library was instantly depleted by a large amount—at the same time, Li Yue's scarlet body also flashed silver for a moment.

"So hard, what's going on?" Egg didn't expect there would be bones it couldn't smash.

"Idiot, your particle… the 'Impose' effect is 'Hardness'." Yingying searched Li Yue's mind for the answer, answering as she searched, "He just imposed 'Hardness' on the bone throne, resisting your smash…"

After sensing the emptiness of the magic in the library, Yingying objectively commented: "Unfortunately, the cost of this kind of imposition is too great. His magic, plus the library's magic, can only maintain it for a moment. There's no way to do it again, let alone complete an entire ritual."

"That's right, in the library, I can become extremely hard." After learning Imposition, Li Yue naturally had to sort through his original four Sensates to find their respective original 'Impose' effects—this was the third gain after just advancing.

The Bone of Self-Healing can impose "Self-Healing", while Egg's particle imposes the effect of "Hardness", enough to resist Egg's fierce blow.

Although the magic consumption is very high, the effect is real—even if Li Yue can't impose this thought outside the library, he can completely use the library's magic in his spare time to pre-infuse some things that need to be more "Hard".

From this point of view, Mento was the first to break off a particle, helping Li Yue.

However, besides the Bone of Self-Healing and the particle, the remaining two—the Bone Sword and the Brain Spirit's pituitary gland—didn't have any "Impose" effects, which was a little disappointment in Li Yue's heart.

But this disappointment was quickly dispelled by another discovery of Li Yue's.

"Your Egg has become my Sensate, and my immersion ability for metal types is stronger." Saying this, Li Yue summoned the Magic-Powered Motorcycle and Magic-Powered Cannon from the next room.

That's right, this is Li Yue's fourth gain—after sensing Egg's particle, Li Yue's immersion speed for metallic substances was accelerated, and he could immediately disassemble the two technological creations, quickly sensing the subtle differences in the details.

Now the library's architecture is still basically based on the Bone of Self-Healing. If it can move into the era of metal materials, there is no doubt that more terrifying things can be created.

And if…some kind of energy is obtained?

"You must be some kind of alloy." Li Yue confidently said to Egg, "A very complex composition, it shouldn't be a natural creation…"

"What do you mean?" Egg hadn't even thought about the three philosophical questions. At this moment, Li Yue's words made it a little confused.

"In your Spade's reproduction, isn't there any existence like 'God'? How exactly were you born?" Li Yue muttered.

[How would I know… ]

Egg's thoughts were simple, and Li Yue didn't think Egg could answer his questions, so he quickly stopped dwelling on it—like airplanes and bicycles… it's enough to know they can be used, there's no need to know all their principles.

With four gains, Li Yue's "Advancement" attempt this time can be said to be a big win, especially since he developed a brand new combat idea, and also got the latest technology of the Tass Empire from the Demon Market. The library is about to undergo earth-shaking changes.

The top priority is to first complete the immersion of those materials in the Demon Illustrated Handbook, become Sensates, and test their respective "Impose" effects; by the way, open the blue-purple cloak within three days, and find the most favorable conditions as predicted by the Fire Valley Prophet Fuxi.

As for the rest… it is to use this wave of "Advancement" to strengthen oneself, strengthen the library, and then find an opportunity to find the "Hellfire", to find an opportunity to seize the authority to devour the Colosseum.

However, during this period, there may be heroes causing trouble, and demons visiting, just like today; but as long as he can maximize the Sensates and Imposed effects, Li Yue feels that it is not too big of a problem.

Putting on his unrestrained, bony, trendy man outfit again, Li Yue finally awakened the bone-bright Galarick on the ground.

"You have a new body, new bones." Li Yue congratulated him, and the Skeleton Knight ran his whole body, and then took out a piece of bone-like spine from his own bone, transforming it into various other forms of weapons, seemingly regaining his former abilities.

"Thank you, my master…" Galarick saluted, and the weapon in his hand finally settled back into the shape of an octagonal staff.

[Bone of Self-Healing… Song of Decay… Master has opened… my advancement… ]

[If I learn the Song of Decay… I can advance… and I can also release the existence in the Thirteenth Library… ]

Listening to Galarick's thoughts, Li Yue felt it was interesting, and thought that if he taught him the Song of Decay and let him liberate the "existence" in the Thirteenth Library… wouldn't that be a way to avoid direct conflict?

But perhaps in a few days, there will be no need to avoid direct conflict—Li Yue is still rapidly immersing several materials.

"You go guard the door first, you can try out your new body, and you can also learn how to fly." Li Yue still left the Flying Dagger to Galarick, chased him to guard the door, while he continued to stay in the bone room.

"Coming back?" Egg called out to Yingying—Li Yue's advancement was successful. If Yingying wants to continue to quickly improve her own strength, obviously going back to be Egg's shadow is a more cost-effective choice.

"Wait a little longer, he's not very stable these days." Yingying wrote on the ground, not knowing if it was true or just an excuse.

And Li Yue ignored it, quietly waiting for a certain material to transform and become his next Sensate.

…

When the library was just stirred up by Li Yue's "Advancement", the pre-war meeting of the Abyssal Maw was still continuing—under the compulsion of the Demon King Commander Mephistopheles, Oogway Boogie has drafted a list to be used as the first batch of elite gladiators, joining the vanguard of the Demon Expeditionary Army.

The meeting will continue, and it will continue for a long time—before the end of the meeting, the participants are not allowed to leave the Abyssal Maw, which also made the King of the Colosseum anxious.

"Bite my fly butt… if this meeting continues like this… that old thing Mephistopheles will drain all the elite combat power of my Colosseum… oh no, most of the combat power… then how can I get the authority of the library…" Oogway Boogie made an excuse and hurriedly turned out of the conference room, preparing to find a place to think of a good way.

Squatting in a blood pit next to the 18th floor blood cocoon, Oogway Boogie began to write letters to the Fly Demons of the Colosseum.

"The Beholder Aberration should have failed… the Abyssal Maw is also naming the gladiators of the Colosseum… I will guarantee that all Abada are not named… I, Oogway Boogie, order them… order Abada… start now… towards the library… attack…"

"Let them not stop for a moment… not stop all night… before the Expeditionary Army is formed… I want Abada to cleanse the library with blood… protect my cubs underground…"

"And once Budibug dies… mobilize all the gladiators who have not been named by the Abyssal Maw… Fly Demons… even the Armor… quickly occupy… the library…"

The fly exploded and flew to the Colosseum to send the message.