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"System, search Old Medicine's memories and extract the recipe for the Foundation Building Spirit Liquid." Su Yun said in his mind.
"Ding, searching... Search successful."
Su Yun focused his will, lightly tapping the recipe, three Purple Leaf Orchid Grasses, two Bone Washing Flowers, and a First-Class Wood Elemental Magic Core.
"Fusion." Su Yun said in his mind.
"Ding, a Fusion method has been detected. A 2nd Rank Magic Core is required for payment. Confirm payment?"
"Confirm."
Immediately, a mysterious aura rose, and the herbs and magic cores in the warehouse vanished.
In their place, a drop of emerald-green liquid floated in the System's storage.
With a thought, Su Yun made the emerald liquid fall into the clear water in the basin he had prepared. Instantly, the clear water turned green.
Su Yun stripped off his clothes, jumped into the basin, and began his cultivation.
...
The night passed in a blur.
Su Yun, naked, sat cross-legged in the wooden basin, his hands forming a strange seal in front of him, eyes closed, breathing steadily.
As time passed, the green liquid in the basin gradually emitted a faint vapor. The vapor, tinged with green, slowly rose and, following Su Yun's breathing, entered his body.
With the vapor entering his body, Su Yun's young face suddenly glowed like warm jade.
"Huff…"
He slowly opened his eyes, a relieved smile spreading across his clear, youthful face.
Standing up, he let the water drip from his body, stretched lazily, and felt the abundant Martial Qi within him, exclaiming in pleasant surprise: "This, this, this…"
Four stages of Martial Qi!
"It's no wonder Xiao Yan could advance four stages a year with this spirit liquid.
Though it's partly due to his re-cultivation, the effects of the Foundation Building Spirit Liquid are truly astonishing."
It wasn't that he lacked experience; since coming to the Martial Arts Continent, he had truly felt how difficult it was to cultivate at the Martial Qi stage.
It was still manageable before, but at the Martial Qi stage, every three stages marked a significant threshold.
He had fully cultivated at the third stage of Martial Qi, making his internal Martial Qi abundant, but he had been trying to break through to the fourth stage for two months without success.
Now, after just one night of cultivation using the Foundation Building Spirit Liquid, he had broken through to the fourth stage of Martial Qi. Although his previous accumulation played a role, the effectiveness of the Foundation Building Spirit Liquid in cultivating at the Martial Qi stage was undeniable.
"The Fusion function of this System is truly remarkable, and since it's Fusion, it shouldn't be limited to just synthesizing pills."
A thoughtful look flashed across Su Yun's eyes.
The Fusion function, like when Su Yun synthesized the Foundation Building Spirit Liquid, could combine anything.
However, there were corresponding restrictions and costs.
The restriction was the feasibility of the Fusion method, and the cost was the magic core.
In the information that had been integrated into his mind, it was clearly stated that Fusion required the consumption of a magic core.
The higher the level of the Fusion product, the higher the required magic core.
According to Su Yun's speculation, Fusion required energy, but what puzzled him was that it seemed only magic cores could be used for Fusion…
Su Yun couldn't figure it out for the moment.
Shaking his head, he decided not to dwell on these details.
Originally, he had planned to join the Jia Nan Academy when he reached the eighth stage of Martial Qi.
Reaching the eighth stage of Martial Qi before the age of eighteen was easy for him, even without the Foundation Building Spirit Liquid.
He wasn't born into a prominent family; the best cultivation technique his parents left him was the Intermediate Yellow Rank 'Blazing Flame Technique.'
To access higher-level cultivation techniques and combat skills, he had to join a sect or academy.
The Jia Nan Academy was renowned throughout the continent and had a good reputation even in the Central Region, making it the top choice.
There was no other way; on the Martial Arts Continent, for a talented commoner like him, joining an academy was the best choice.
But now, things were different. He had obtained the System and had Old Medicine's lifetime collection as a backup, so he could postpone joining the Jia Nan Academy.
"However, joining the Jia Nan Academy is still necessary. The Falling Heart Flame…" Su Yun fell into deep thought, revising his plan to join the Jia Nan Academy at the eighth stage of Martial Qi.
He had all of Old Medicine's memories, so he didn't need to worry about high-level cultivation techniques. Joining the Jia Nan Academy could be delayed.
If he had a fire attribute, he would even consider cultivating the Burning Decree.
As the original Xiao Yan's greatest trump card, it was hard not to be tempted by the Burning Decree.
It could devour beast fires and strange fires to enhance cultivation, allowing one to control multiple strange fires. If the conditions were right, he naturally wanted to cultivate it.
But delaying was one thing; he still had to go eventually.
There was no rule that only those with a fire attribute could refine strange fires.
If he didn't have a fire attribute and couldn't cultivate the Burning Decree, he could only absorb one strange fire, and the Falling Heart Flame would be his top choice.
The Heavenly Burning Qi Tower in the Jia Nan Academy's Inner Court had such a powerful effect. With a complete Falling Heart Flame, his cultivation speed would be astonishing.
"Back at the market, when I met Xiao Yan, he looked about my age…" Su Yun counted on his fingers, calculating the time.
In these six years in Wu Tan City, he hadn't heard of Xiao Yan's genius name as a Martial Practitioner at eleven or the rumors of him being a waste at the third stage of Martial Qi. This encounter confirmed the current timeline for Su Yun.
This was good news for him. If the plot hadn't started, then the herbs and combat skills in the mountain cave in Green Mountain Town, the Blue Lotus Earth Core Fire in the Tallgor Desert, and a series of opportunities were still available.
"That little girl back then must have been Xiao Xun'er."
She indeed looked about a year younger than Xiao Yan.
Su Yun raised his right hand, pressing his head. This broken System didn't even show age, forcing him to estimate it himself.
Poor review!
If he remembered correctly, Xiao Xun'er was sent to the Xiao family by Gu Yuan at the age of four.
That meant she had been at the Xiao family for about a year, and Xiao Yan, who looked about his age, was roughly six.
"Pretty much right."
Su Yun put down his fingers and began to recall.
Since his rebirth, he had been consciously recalling the plot of the world of *Battle Through the Heavens*.
He had read it several times before, and except for a few details, he remembered the plot and many settings.
If his memory was correct, Xiao Yan started cultivating at the age of four, reached the ninth stage of Martial Qi at ten, and successfully condensed a Martial Qi vortex, becoming a Martial Practitioner at eleven.
After that, he was completely drained by Old Medicine, and for three years, his cultivation regressed from Martial Practitioner to the third stage of Martial Qi. For three years, the Martial Qi he cultivated was immediately drained, leaving no room for growth.
And after three years came the Engagement Cancellation Crisis, the Three-Year Agreement.
"His cultivation started regressing at eleven, and he was drained for three years, so the plot officially begins when Xiao Yan is fourteen, right?"
"Is that correct?" Su Yun couldn't help but frown.
"No, he should have broken through to Martial Practitioner at around eleven and then been drained for another three years."
(End of Chapter)