Duke's life of magic potion refining quickly fell into a routine, taking orders from the Giant Rock Commerce Association to make money while grinding proficiency with the materials they provided.

He discovered that the maximum level for a Level 1 Potion should be Level 9, whereas the maximum level for a Secondary Potion was Level 5.

As his proficiency increased, Duke's success rate in refining White Mist Forest Potions became very high, and there were often plenty of materials left over from the Giant Rock Commerce Association.

He could even keep some for himself, which he didn't always use up, serving as inventory for potential future sales.

At night, after a fierce battle, Duke found Yala somewhat weak and slumped to the side.

Elves are inherently very attractive, and Yala was considered a beauty even among elves.

Her graceful body lay on the bed, with a thin sheet partially covering her, revealing her enticing features, adding extra allure to her face, which was still flushed.

Seeing Duke sit up, Yala used her long, slender, fair legs to caress Duke gently.

Originally, Yala always wore a cold expression, rarely smiling, and since becoming a slave creature, she hadn't smiled at all.

But after spending time with Duke, she gradually started showing a more feminine demeanor, occasionally even teasing Duke proactively.

However, seeing Duke take out a magic potion now, she knew he was about to enter Meditation Practice and didn't disturb him further.

Duke took out a White Mist Forest Potion, drank it down, and entered a meditative state.

At any time, Meditation Practice should not be neglected.

A few hours later.

[Deep Blue Tide Meditation Technique Level Up, Spiritual Power +0.1]

[Deep Blue Tide Meditation Technique: LV8 (1/4000)]

After the Meditation Technique increased to Level 8, it was still in the shape of a green leaf.

This indicated that the maximum level for Meditation Techniques, like Talent Magic, was Level 17.

Duke's recent life was peaceful yet fulfilling, refining potions by day, meditating and farming by night.

As he continued to meditate, he suddenly noticed some movement in his right palm. Upon checking, he realized the energy in the Heart-shaped Earrings was full, pulling him towards the Nightmare Plane.

Feeling this strong pull, Duke instantly allocated his remaining seven free attribute points to Spiritual Power.

[Spirit: 64.2->71.2]

After investing the seven free attribute points, his Spiritual Power surpassed seventy points.

Only then did Duke feel the pull weaken considerably, and he found he could finally control this earring.

He realized it wasn't simply a plane coordinate, but rather a storage tool for plane coordinates, currently storing only the Nightmare Plane's coordinates.

Once the Coordinates Earring's energy is full, the holder can choose to record the current plane's coordinates or teleport to the recorded plane coordinates.

Choosing either option consumes the accumulated energy.

This object was clearly not an Alchemy Creation, as it bore no signs of alchemy, most likely a special product of a certain plane.

The Yellow Sand Crystal was similarly not a product of alchemy; the Endless Plane features many such wondrous items.

According to Hanna, this object was handed down from her ancestors, likely obtained by an ancestor somewhere and passed down through generations.

The Coordinates Earring is indeed a treasure, but it requires a certain level of strength to truly be utilized.

After some thought, Duke decided not to use the earring's energy.

Neither did he travel to the Nightmare Plane nor record any coordinates.

With his current strength, he's not qualified to traverse the Nightmare Plane—it has many high-level resources, but surviving there without enough power is challenging.

Last time was sheer luck, and Duke dared not gamble his life on luck again.

As for recording plane coordinates, he refrained, specifically not recording the Wizard Plane's coordinates.

The reason was simple: Duke was unsure if this was some bait thrown from the Nightmare Plane.

If this item is used by some existence as a lure, and he records the Wizard Plane's coordinates, it would expose those coordinates to certain existences.

Duke didn't want to bring massive disaster to the Wizard Plane due to his actions; it's fine for recording coordinates of other planes.

Even if there's some issue with the Coordinates Earring, it wouldn't involve his current plane.

Upon reaching 71 points in Spiritual Power, Duke was able to fully control the earring and continued with Meditation Practice.

At this point, Yala came back after her bath, drank a Starlight Meditation Potion, then climbed into bed and started her practice, close to Duke.

Duke recently discovered that meditation potions are effective for elves too.

Elves are born casters; they don't need Meditation Techniques to increase their Spiritual Power but have their unique practice method.

This practice method resembles the Breathing Technique, achieving a similar effect to Meditation Techniques through specific breathing rhythms communicating with the free energy particles around.

...

During this period, Duke primarily focused on refining potions, all orders from the Giant Rock Commerce Association.

His collaboration with the Giant Rock Commerce Association was pleasant, fulfilling both parties' needs.

It took Duke half a month to grind the White Mist Forest Potion to Level 5, reaching the blooming state, confirming the maximum level for a Level 1 Potion was indeed Level 9.

One day, Harrison sent word that he wanted to discuss something.

Understanding what it was about, Duke went to Harbor City to meet with Harrison for talks.

In a high-end restaurant in Harbor City, Harrison booked a private room, dining alone with Duke.

"Please step outside for a moment."

After the waitresses, dressed in black stockings and short skirts, served the dishes, Harrison asked them to leave.

"What's so secretive?" Duke asked.

Harrison smiled, "It's nothing serious. I could explain it through the Wizard's Mark, but I wanted to invite you to dinner. You've been quite busy lately, completing so many orders alone."

Harrison couldn't understand why Duke worked so tirelessly; few wizards engaged in such intense potion refining for profit.

In his view, Duke had just returned from the Beastman Plane and should have plenty of money, so there's no need to work so hard.

Duke just smiled without explaining; he couldn't exactly say he was leveraging the Giant Rock Commerce Association's materials to grind proficiency.

"You know about the Wood Elf Plane..." Harrison began with the main topic, and Duke listened intently.

The matter was simple; Black Sail possessed a Low Plane of the Wood Elves, which was the homeland of Yala and other wood elves.

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