"Activity levels decreasing, magic fluctuations abnormal, deviation exceeds 5, rune inscriptions damaged, magic patterns peeling off..."

As a succubus, Vivian seemed to have inherited the meticulous nature of the mysterious Gamma mages in magical research. At least while assisting Felix, her voice, though still sweet and soft, lacked the bone-penetrating allure it once had.

"Activity dropping to critical levels, magic pattern inscription failed!" Vivian paused, then continued in that sweet voice, "Master, you should rest. You've been working for sixteen magical hours straight."

Felix set down the crystal scalpel, reviewed the data from the magic activity recorder standing nearby, and recorded it in his magic notebook. After a moment of contemplation and analysis, he said with a furrowed brow:

"The rate of magic loss is rapid, especially for high-activity life carriers. The time for rune branding must be kept within thirty minutes, only then can we spare time for the final magic pattern inscription!"

Felix casually threw the biological corpse from the live experiment table into the dissolution pool, then put down the crystal scalpel and said indifferently, "Wipe my sweat."

Vivian, with a seductive smile, picked up a towel to wipe the sweat from Felix's forehead. She suddenly realized her young master exhibited a manly resilience when immersed in magical research, reminiscent of the madness of a mysterious Gamma mage – a madness filled with precise calculations, statistics, and experimentation.

"Do we have any more experimental materials?"

Felix took a deep breath, rubbed his temples, and asked. He had already failed sixteen times, probably depleting most of the live experimental materials in Felendia.

The high-activity magic pattern inscription and advanced puppet-making were inseparable parts. As a meticulous spellcaster, Felix would certainly not casually use the precious demon corpse for experiments.

The succubus pondered for a moment, then answered, "We've run out of large experimental materials, and it's unlikely we'll be able to cultivate more soon. The only things left for live experiments are thirty-five slimes cultivated in the decay elemental vat."

Hearing this, Felix's brow furrowed slightly. Slimes' strong absorption and fusion properties made them suitable for genetic mutation experiments, but they were not the best basis for high-activity magic pattern inscriptions.

The legacy left by the mysterious Gamma mage didn't include many active experimental carriers. Perhaps at his level, the only live experiments that interested him were negative gene mutations and dark creature creation.

Rubbing his forehead, Felix reviewed the sixteen failed magical experiments in his magic notebook, then looked up and asked, "What is the activity fusion ratio for half-orcs?"

"1.3, 0.2 lower than humans, but their physical strength is 0.4 higher, and they have a greater ability to withstand negative elemental erosion.

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However, their fusion properties are poor. In terms of negative element fusion, the vampire long-livers rank first in the primary material plane, followed by dark wizards, and then werewolves.

But werewolves are nearly extinct in the primary material plane now," the succubus quickly provided an answer.

"Vampires." Hearing this, Felix furrowed his brows tightly and, after a moment of contemplation, said calmly, "Let's take a break."

Ever since the Lord's glory spread across the world, the activities of dark creatures have become increasingly secretive. Unless in chaotic areas untouched by divine grace, vampire long-livers rarely appear in people's sight.

Finding a vampire in the imperial city is undoubtedly a challenging task. This place is fervently guarded by the Papal Chamber and the Episcopal Council.

The suppression of dark species has always been stringent. Apart from the "Bloody Strangler" incident, which briefly brought many dark creatures lurking in the shadows into the light, Felix hadn't heard of any dark creature activities recently.

Chaos. It's only during chaotic times that these dark beings stealthily reveal their fangs.

Ignoring the seductive glances thrown by the succubus, Felix went straight to the seventh floor of Felendia, to his bedroom. It was a clean and tidy room, with nothing but a bed, a wardrobe, and a desk.

Even Felix found it hard to endure the high intensity of the sixteen magical hours of live experiments. The depletion of magic could be replenished with potions, but the mental exhaustion was hard to recover from by other means.

Lying on the soft bed, images of Vivian's voluptuous bosom occasionally flashed before Felix's eyes. The sexual allure of a succubus is irresistible to any male, but not every male can withstand their charm.

As one of the most seductive and powerful succubi that feed on male essence, Vivian's danger is not less than that of a year-round dragon.

They are evil beings powered by the life force of any male, and only spellcasters proficient in "Magic Extraction" or certain secret arts can withstand their relentless erosion.

"The Succubus' pussy is a vortex." This is the evaluation of the demons to their own clan.

Here's the English translation of the provided excerpt from your Chinese novel:

Any male creature that has had relations with a succubus finds it impossible to resist their charm, only sinking deeper, even devils are no exception!

Make no mistake, 'exhausted to death' is the gift prepared by succubi!

Felix wasn't ready to die young, so he did his best to ignore the succubus's naturally seductive charm.

If he handed over the demon's corpse to Vivian for refinement, Felix wouldn't be as tired as he currently was. As a mysterious Gamma mage's experimental material, the succubus Vivian served both as his assistant and housekeeper. This succubus, with a lifespan of over three hundred years, was a skilled alchemist and potion master, and of course, an epic-level trainer.

Felix always believed that the power in his own hands was true power. Refining higher beings and creating high-activity puppet lives were essential steps in his ascension to the Golden Dominion. He had just accelerated this process.

Gamma Magic, evolved from ancient alchemy, used other creatures' bodies in puppetry, while Gamma Magic merely transferred this scholarly problem onto oneself.

Felix soon fell into a deep sleep, having a habit of casting a sleep spell on himself before bed.

Shortly after he fell asleep, the door to his room creaked open.

A slender figure clad only in a thin gauze entered, with ample bosom and rounded, perky buttocks, her seductive face flushed with desire. Vivian quietly watched Felix, who was deep in slumber, her sultry face revealing a sinister smile.

"Succubi need a master, but it must be a strong one. Only ignorant human women need useless pretty boys; succubi don't."

Vivian's lips moved rapidly, a series of hellish notes echoing in the room. Wisps of pink mist swirled around her, gradually spreading...

"Realm of Illusion!"

Perhaps even the mysterious Gamma mage didn't know that Vivian wasn't a pure-blooded succubus; her bloodline was mixed with a nearly extinct lineage. She had one-eighth royal blood – that of a Dream Succubus!

"Be powerful, or die!"

Vivian watched as a blush slowly crept over Felix's handsome face, and coldly uttered those words.