Since returning from the Bloodline Altar, Dale's changes are not only reflected in her strength but also in her temperament.

Her demeanor has become more elegant, and her voice carries an indescribable allure—this is the innate talent unique to a pure-blooded Sea Siren starting to manifest.

"I need some of your... special secretions."

Ron said directly, "That kind of highly corrosive liquid."

Dale was taken aback and then blushed slightly, "You mean... my saliva?"

"To be precise, it's that highly acidic liquid secreted deep within your salivary glands."

Ron explained, "As far as I know, a pure-blooded Sea Siren can control the properties of their saliva, freely switching from regular saliva to strong acid."

Dale lowered her head, her fingers twisting nervously, "This... is a bit embarrassing..."

Her voice was as soft as a mosquito's buzz, but Ron still heard it clearly:

"This secretion is something very private for us Sea Sirens... usually used only for predation or... or..."

She didn't continue, but her face was flushed to her ears.

Ron raised an eyebrow, suddenly realizing he might have touched some taboo or custom related to the Sea Siren race.

But the research at hand was obviously more important.

"It's for an important magic study."

He said calmly, "If you truly feel uncomfortable, I can consider other ways."

Dale took a deep breath and looked up, "No, I'm willing to do anything for the master, of course."

She asked cautiously, "How much do you need...?"

"About this much." Ron gestured the size of a small bottle, "Just enough to fill this capacity."

Dale nodded, her face still flushed, "Please give me a container, I need... to be alone for a while."

Ron took a specially made small glass bottle from his pocket and handed it to Dale.

This bottle was made of special materials, capable of resisting strong acid corrosion.

"Thank you." He said softly, "This is very important for my research."

Dale took the bottle and quickly walked to a corner of the training field.

A few minutes later, she returned holding a glass bottle half-filled with a transparent viscous liquid, her gaze wandering, avoiding direct eye contact with Ron.

"Here you go... this is my... secretion."

She handed the bottle to Ron, her head lowered almost to her chest.

Ron took the bottle and carefully observed the liquid inside.

In the sunlight, the liquid emitted a faint blue light, appearing much more viscous than ordinary liquids, yet still had good fluidity.

"Thank you very much, Dale." Ron said sincerely.

The Little Sea Siren nodded rapidly:

"You're welcome, Master. If you need more... I can provide it anytime."

Ron smiled slightly and turned back to the laboratory.

Dale breathed a sigh of relief, her gaze complex as she watched her master's departing figure.

Back in the laboratory, Ron immediately began his experiments.

He carefully dropped a single drop of Dale's secretion onto a piece of wood.

Upon contact with the wood, the liquid made a sizzling sound.

The surface of the wood was quickly corroded to form a deep pit, the edges turning charred black.

"The corrosiveness far exceeds my expectations..." Ron murmured in amazement.

The corrosion speed and strength of this acidic liquid even surpassed most of the strong acids he had encountered in the School's laboratory.

Even more magically, this liquid seemed to have certain magical traits, not only corroding physical structures but also interfering with magical structures.

Ron began experimenting to integrate this acidic liquid into a magic model.

Unlike simply injecting the substance into an already constructed spell,

true application as a casting medium involves integrating the characteristics of the medium substance into the construction of the magic model, creating perfect resonance between the two.

He first constructed the basic framework of "Slime Splash" in the Spiritual World, then integrated the understanding of the acidic properties at key nodes.

This was a delicate and complex process requiring deep understanding of both the magic structure and the medium's traits.

With the infusion of Spiritual Power, a group of liquid emitting a ghostly blue light gradually formed in Ron's palm.

Compared to the original slime, this liquid was more condensed, the luster more sharp, as if it contained some dangerous power.

"Go!"

With a wave of his hand, the liquid shot towards the wooden dummy like an arrow leaving the string.

"Sizzle!"

Upon hitting the target, the liquid made a tooth-aching sound.

The surface of the wooden dummy quickly corroded into a bowl-sized pit, with pale blue smoke rising from the edges, the air filled with a pungent smell.

"The effect is much better than anticipated." Ron lightly praised.

This improved magic not only attacked faster, but its corrosive power also leaped forward substantially.

But he was not satisfied with this.

"If the magic structure could be further adjusted, perhaps range attack variants could be developed..."

Ron opened his notes and started sketching new magic models.

His idea was to divide the acidic magic into three forms:

The first was the tried "Acidic Liquid Ball," featuring high speed and strong corrosiveness, suitable for precision attacks on a single target.

The second was "Acid Rain," diffusing the magic energy to form an acidic drizzle over a certain area;

The moderately concentrated acidic liquid would corrode the enemy's skin and equipment, reducing their combat capabilities.

The third was "Acidic Fog," completely vaporizing the liquid to form a toxic mist;

thereby obstructing the enemy's vision while causing continuous damage.

In the following hours, Ron immersed himself in magic enhancement.

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