The Extra's Advent: My Villainess Fiancée is a Yandere-Chapter 31: SS-Rank Skill Acquired

Cael checked his newly acquired S-Rank skill, Battle Reaper’s Dominion.

He read the description carefully.

...

BATTLE REAPER’S DOMINION

Rank: S

Type: Field / Buff

Description:

A dominion-type combat skill with two activation states.

Partial Activation – Reaper’s Focus (Buff):

Enhances the user’s battle instinct, reaction speed, mental clarity, and resistance to intimidation or suppression effects. The user’s killing intent sharpens, allowing faster decision-making and instinct-driven combat flow.

Full Activation – Reaper’s Dominion (Field):

Expands into a combat domain centered on the user. Enemies within the field experience aura suppression, heightened psychological pressure, and disruption of battle rhythm. The user gains increased perception of openings and maintains superior combat tempo while the domain remains active.

...

Cael exhaled slowly after finishing the description.

This was exactly what he lacked at the moment.

Immediate offensive presence.

Until now, he had always needed to think before acting. Every exchange with an enemy required analysis and contingency planning.

If he misjudged even slightly, someone stronger could erase him in a single blow.

Like before, when he had been one-shotted by the Minotaur.

He clenched his fist and then loosened it.

After breaking through to [Silver 2], his overall strength had increased noticeably. His body felt lighter, and his mana circulation was more stable.

He opened his status panel.

...

[Status]

[Name: Caelir Vayne]

[Class: Iridescent Monarch (SSS)]

Elements:

• Wind (49% Mastery)

• Water (12% Mastery)

Unique Elements:

• Moonlight (14% Mastery)

• Frostflame (22% Mastery)

• Black Lightning (23% → 24% Mastery)

• Space (Locked)

[Rank: Silver 1 → Silver 2]

Skills:

• Copy (SS)

• Cloning (SSS)

• Fusion (SS)

• Teleportation (S)

• Wrong Eye (S)

• Faceless Mask Construct (A)

• Energy Construction (S)

• Formless (A)

• Battle Reaper’s Dominion (S)

[Weapon Mastery: Sword (53% Mastery)]

[Techniques: Gale Weave Swordsmanship]

...

Cael’s eyes paused on the new skill he didn’t remember obtaining.

"So, my clone completed the task."

His gaze then shifted to the two skills he had been considering for fusion.

Energy Construction and Formless.

He had been thinking about this for some time.

Logically, combining an S-Rank skill with an A-Rank skill should not produce an SS-Rank result.

The probability was extremely low. Three S-Rank skills might achieve that threshold. Two, perhaps, with enough compatibility.

An S and an A?

Almost zero.

But...

A word resurfaced in his mind, Resonance.

In the original novel, Lucian’s Light and Dark elements had once resonated under extreme conditions. Instead of canceling each other out, they amplified, producing an output far beyond his original power.

Resonance was not limited to elements.

Under certain circumstances, an awakener could resonate with their own class.

Yes, awakeners could resonate with their own class.

The principle was simple in theory and absurdly difficult in practice.

If one possessed a class such as Sharpshooter, they had to think like one, see like one, and move like one. They had to become a sharpshooter in every sense. Only then might resonance occur.

The higher one’s class, the lower the chance.

Even Lucian had never resonated with his SSS-class.

Cael had no intention of attempting class resonance.

But he hoped these skills could resonate with each other.

Cael opened the skills’ descriptions.

...

Energy Construction

Rank: S

Type: Manifestation

[A/N: I changed skill type ’Support’ to ’Manifestation’]

Description:

Allows the user to rapidly materialize structured mana constructs such as weapons, barriers, or platforms, with durability and strength proportional to mana investment and control.

...

Formless

Rank: A

Type: Nullification

Description:

Allows the user to destabilize and dissolve mana-based constructs upon contact, reducing them into inert mana particles. Effective only against structured mana manifestations such as barriers, bindings, platforms, or weapons. Cannot affect living beings, natural elements, or raw, unstructured mana.

...

One created structure.

The other dismantled structure.

Opposites at first glance.

But fundamentally, both operated on the same axis: manipulation of structured mana.

He inhaled once, steadying his thoughts.

"Activate Fusion. Combine skills: Energy Construction and Formless."

The familiar interface illuminated before him.

...

[Analyzing...]

[Structural Mana Manipulation Overlap Detected....]

[Analysis Complete]

[Merging skills: Energy Construction (S), Formless (A)]

[High probability of producing S-Rank Skill: Formless Manifestation]

Do you wish to proceed with fusion?

[Yes] [No]

...

Cael sighed.

It was only an S-Rank skill.

Guess I am asking too much.

I shouldn’t have put my hopes up.

"Yes."

He allowed the system to fuse the skills.

...

[Fusion Process Initiated]

[Stabilizing structural contradiction...]

[Synchronizing manifestation and nullification...]

[Resolving structural conflict...]

[#?#/?.....]

[Fundamental resonance with iridescence...]

[Resonance Occurred....]

Do you wish to allow ’???’ Skill to resonate with your Class: Iridescent Monarch?

[Yes] [No]

...

Cael’s eyes widened as he stared at the interface.

The resonance had indeed occurred, but not in the way he expected.

The skills hadn’t resonated with each other.

Instead, the incomplete fusion skill had resonated with his class.

Cael didn’t hesitate.

"Yes."

Immediately, a series of messages appeared on the interface.

But strangely, all Cael saw was a blur.

His vision began to spin. Before long, everything went dark.

He lost consciousness.

....

When Cael opened his eyes, he was shocked.

He was no longer in the dungeon.

It was a crimson desert.

Dead bodies and broken weapons were scattered everywhere, where blood mixed together and flowed like a small river.

Where am I?

Cael looked around, and soon his eyes locked onto a gray-haired woman with shining golden eyes who looked to be in her early twenties.

She wore simple black armor and was dressed like a man.

For some reason, the moment Cael looked at her, a strange pressure pressed against his mind. It wasn’t killing intent or aura.

It felt like standing before something that simply existed on a higher plane.

A name surfaced in his mind as he muttered,

"...True Iridescent Monarch??"

The Monarch was surrounded by thousands of people.

These people wore armor and held swords and spears. Behind the warriors stood mages dressed in robes.

"A medieval era..."

Cael looked at the warriors and mages.

These people were shaking and sweating. Some were even crying.

Cael couldn’t understand their language, but he could understand one thing.

They were here to hunt the Monarch.

Not willingly, but forcefully.

Cael didn’t know why he was here, but it seemed these people couldn’t see him, and he couldn’t touch them.

Looks like I am just a spectator.

The commander shouted, signaling the start of the war.

The Monarch, who had been waiting until now, stretched out her hand.

Instantly, thousands of mana constructs shaped like swords formed in the sky and descended.

A few lucky ones survived. Some managed to block.

Many died.

Hundreds of magic spells rained toward the Monarch.

In response, the Monarch simply waved her hand.

Instantly, all the spells were nullified.

At that moment, dozens of warriors closed in on her.

The Monarch drew a simple, plain-looking blue sword and slashed.

That slash disintegrated the warriors’ mana barriers and cut them in two, killing them instantly.

She was like a god playing with mortals.

From the beginning, her expression remained bored, and she didn’t move a single step.

The battle continued as the warriors sent themselves to the afterlife.

There was one thing Cael observed.

The skill the Monarch was using was... similar to Energy Construction, combined with a far higher-grade version of Formless.

Soon, the battle ended as the Monarch brutally killed the enemy commander.

Cael’s vision began to blur again. He knew he was returning to reality.

Then he heard the Monarch’s beautiful voice curse.

"Damn this body...."

...

Cael slowly opened his eyes.

He was back in the dungeon boss room.

"Damn this body... she said. What does that mean? Is her power too much for her body to handle?"

"Ugh, whatever. That’s not my problem."

Then his eyes paused on the interface, and he smiled.

...

[You have acquired SS-Rank skill: Mana Sovereignty.]

...