With the fall of Magic Spider City, the entire southeastern domain of the underground world has completely fallen under the control of the Star Alliance.

With the southeastern domain’s battles subsiding, the focus has shifted to development and exploitation.

Throughout the southeastern domain, the Star Alliance faces little external threat, so aside from leaving behind a small defensive force, most of the military strength is gradually transferred to the Northwest Domain frontline.

Dragon Remains Tower, study.

Sunan perused the recent war reports.

The battles in the Northwest Domain were proceeding very smoothly. After a series of devastating defeats, the Fallen Star Alliance was basically disbanded, existing in name only, with each fighting their own battles.

Next, it was just a matter of cleaning up each of them.

In four or five years at most, the Northwest Domain could be completely conquered.

By then, the entire underground world would be in the pocket of the Star Alliance!

Thinking of that scene, Sunan couldn’t help but reveal a slight smile.

In his plan, the underground world was a very important tier.

Even more important than the surface.

The rich resources of the underground world, especially various mineral metals, are extremely important for establishing the Wizard Tower.

Essentially, a Wizard Tower is a large fortress that can accommodate tens of thousands of people for residence and cultivation, hence, the required foundational building materials are a massive amount.

Various stones and metals are calculated in tens of thousands of tons.

Without sufficient financial support, not even the ’shell’ of a Wizard Tower can be built, not to mention the various large-scale facilities afterward.

During the wizard era, wizards who could build Wizard Towers often controlled at least one private base, or colonization plane.

Sunan’s plan is to turn the underground world into his private base, providing various resource materials for his future development.

As for the surface, at present, it is the dumping ground for Star Alliance’s goods, as well as the territory that provides fresh blood for Starlight Academy.

Noteworthy is that the battles on the surface are similarly progressing very smoothly.

The reunification war initiated by the Star Empire has reached the late stages, and now only a scant few countries continue to struggle desperately, though their defeat is merely a matter of time.

From the war reports, the Star Empire could end the southeastern domain’s war in at most two years.

Then perhaps it will recuperate for a period before launching campaigns against the Northwest Domain.

Closing the war report and placing it aside, Sunan looked up at the Secret Puppet girls standing on either side of the desk.

The battle with the half-spider Divine Favor creature had already proven the combat effectiveness of the Secret Puppets.

Even though they were at a disadvantage throughout, the opponent was, after all, a powerful divine creature capable of holding its own against wizards. Honestly, the Secret Puppet girls did quite well to reach that level.

After all, even Sunan had to use Engraving Gemstones and Black Thunder to kill the half-spider Divine Favor creature.

However, this battle also exposed the weakness of the Secret Puppets — insufficient defense.

The diamond-constructed body is considered unbreakable against opponents below wizard level.

But once faced with higher-level creatures, it fell short.

Otherwise, a Secret Puppet wouldn’t have had its arm severed by the half-spider Divine Favor.

It’s necessary to find a way to strengthen the defense of the Secret Puppets; otherwise, the next time they face opponents of the same level, their insufficient defense will still be a fatal weakness.

"Synthesizing harder magical diamonds to replace the current body materials... Doing so is too efficient, and costs will rise sharply."

"Add defensive Enchanted Runes... No, the current Enchanted Runes have already reached their limit unless a material more advanced than Mithril can be found, otherwise, more Enchanted Runes cannot be added."

Several ideas emerged in Sunan’s mind, but he immediately dismissed them.

The necessary condition for realizing these ideas is an upgrade of materials.

With the Cube of Synthesis, this isn’t difficult to achieve, but the cost would significantly increase.

Ultimately, the costs might be headed toward millions of Gold Coins.

This is unacceptable to Sunan.

Even now, controlling half of the underground world, he cannot be so extravagant and wasteful.

He still needs to accumulate resources to build Wizard Towers and cannot waste too many resources on this.

—— Of course, the main issue is that it’s cost-effective.

After pondering for a while, Sunan suddenly had a flash of inspiration.

If he can’t focus on the body’s structure, then he can find another way through external means.

For instance, magical items.

The Secret Puppets lack Spiritual Power and cannot activate magical items, but magical items can be embedded into the Secret Puppets, and the activation method for the magical items can be changed so that the Secret Puppets can activate them using Energy Particles.

To put it bluntly, it’s like an external device for a robot.

In fact, the two Secret Puppet girls already have the Great Protection Ring embedded.

If not for the Witchcraft Artifact level being too high, preventing embedding into the Secret Puppets, Sunan would have liked to install a Restricted Area artifact on them, the defense would definitely soar.

However, the Restricted Area won’t work, but the Demon Pattern Core can be attempted.

The Demon Pattern Core is a potent magical item with both offensive and defensive capabilities; if the Secret Puppets could integrate with the Demon Pattern Core, not only would the defense level significantly boost, the attack methods could also be diversified.

The primary distinction between Secret Puppets and wizards in combat power is the absence of Talent Ability, and the Demon Pattern Core will certainly bridge that gap, closing the differences with wizards. 𝒻𝓇𝑒𝘦𝘸𝑒𝒷𝓃ℴ𝑣𝘦𝑙.𝒸ℴ𝘮

The more Sunan thought about it, the more feasible it seemed.

The only issue is the Demon Pattern Core heavily relies on the consumption of Spiritual Power; it must change its energy source for the Secret Puppets to use it.

Achieving this isn’t easy.

But if successful, the Secret Puppet’s combat capabilities would likely be enhanced to a level comparable to the half-spider Divine Favor.

Without hesitation, Sunan added an improvement plan for the Demon Pattern Core to the future arrangements.