Chapter 620

Yan Buji frowned, took out paper and pen, and began calculating.

A few people, at first glance, thought Yan Buji was copying a pill formula in front of them, and subconsciously felt a bit dissatisfied.

But on closer inspection, they saw Yan Buji writing algorithms for various Spiritual Material dosages, and for a moment were at a loss.

Ye Lin asked curiously, "Hall Master Yan, what is this?"

"I'm calculating the dosage of Spiritual Materials to infer this pill's effect," he replied.

"Can that work?"

Yan Buji, while calculating, said, "The effects of most known Spiritual Materials are self‑evident, but the dosage is the key to efficacy. A single pill can serve many purposes—some are medicinal potency, some are pill toxicity, others are purely the function of the Spiritual Materials—so we must compute the dosage to deduce the formula's effect."

Ye Lin, bewildered, said, "So powerful?"

"If there were a ready‑made pill it would of course be better," Yan Buji frowned. "But this formula involves an ancient Alchemy Technique and multiple composite refining methods; it's even harder to craft than a Celestial Pill."

"Composite refining?"

"For example, Spiritual Materials may need to be baked with Spiritual Fire—that's a pure refinement; there's also the so‑called impure refinement, using demonic qi or blood qi to contaminate Spiritual Materials and extract their properties. Composite refining mixes pure and impure methods," Yan Buji explained.

His wine gourd was made using the composite refining method, primarily to increase its capacity for wine and reduce its weight.

Ye Lin thought carefully, "No wonder it mentions using female menstrual blood... so that's the reason."

"Hmm, a woman's monthly flow is already yin‑impure, and this requires eighty years of yin‑impure blood... Ah, so this pill has that effect," Yan Buji said after calculating, roughly deducing the effect of the Yin‑Yang Reverse Pill.

Ye Lin and the others, also curious, asked, "What does this pill do?"

"This pill is an extremely pure aphrodisiac," he replied.

"Huh?"

Yan Buji wore a strange expression: "According to this ratio, first we use... three liang and a half as the guiding agent, mainly to draw out... properties. The combined properties of these Spiritual Materials are extremely similar to a market‑available aphrodisiac. And the Yin‑Yang Reverse Pill, refined with yin‑impure blood, will amplify the properties to the extreme... producing..."

Yan Buji rattled off a slew of technical terms, leaving the few listeners with bewildered faces.

"If you don't believe it, bring me Spiritual Materials and I can brew a batch for you," Yan Buji said with a smile.

Ye Lin, upon hearing, immediately shook their head, "No, no, no, as a disciple of a holy site, what's the use of this aphrodisiac?"

"Exactly, exactly."

A few young ones flushed red, and Yan Buji smiled, handing over the scroll: "Fine. Though this pill is a pure aphrodisiac, it can greatly stimulate qi and blood. If used for body‑refining, the effect should be quite good. It's best to supplement it with Ice Heart Pill and Warm Snow Pill, and avoid excess."

"It can also refine the body?!"

"Yes, the Yin‑Yang Reverse Pill requires at least Fivefold Transformation level to complete; for your current stage, a single pill should last about six months."

Ye Lin, hearing that, felt a stir of interest.

He had indeed obtained a remarkable body‑refining technique before, but it demanded high innate talent; with his own talent it yielded little effect, and he was lamenting the slow progress...

However, in front of everyone he couldn't directly admit he needed the Yin‑Yang Reverse Pill, so after taking the scroll he left with the others.

Yan Buji smiled, noticing Ye Lin's reaction: "That kid is so interested in aphrodisiacs? Judging by his demeanor, he probably wants to use it for cultivation."

Thinking of that, Yan Buji waited for a moment.

Afternoon arrived.

Ye Lin sneaked into Lian Dan Tang and saw Yan Buji sitting in the small courtyard with eyes closed, meditating.

"Hall Master Yan..."

"Back already?"

"Hm? How did Hall Master Yan know I was coming back?"

"When I mentioned the Yin‑Yang Reverse Pill could refine the body, your eyes lit up; I figured you'd come back," Yan Buji said with a smile.

Ye Lin, a bit embarrassed, scratched their head, "Hall Master Yan, could you help me..."

"No, the Internal Affairs Hall won't approve. Besides, I also need the Yin‑Yang Reverse Pill; any waste from the refining will be dumped out the back gate, and I won't even know where it ends up," Yan Buji laughed.

Ye Lin instantly understood Yan Buji's meaning.

"Yes, I understand. It's a trivial matter; please don't disdain it, Hall Master."

Yan Buji weighed the Spiritual Stone bag, smiled, "Alright, go back. Tomorrow's weather looks fine."

"Oh!!"

Ye Lin turned and left.

Yan Buji wasn't kindly offering to craft the Yin‑Yang Reverse Pill for Ye Lin; he coveted the connections behind that person.

Behind him stood Elder Pang Mingde of the Inner Gate, who is Feng Yue's superior, so befriending him means Feng Yue would keep quiet even if he knew anything.

On my side, Elder Xi Men backs me, so after solidifying ties with Ye Lin, even though I won't dominate the Outer Gate, my foundation will be strong.

"But this Yin‑Yang Reverse Pill is indeed intriguing."

Yan Buji didn't think the pill itself was exceptionally powerful; rather, the myriad yet uncomplicated refining methods—various pure, impure, and composite techniques—were all new to him, and even the ways of handling Spiritual Materials differed somewhat from his Great Alchemy Guide.

Nevertheless, crafting the Yin‑Yang Reverse Pill would teach him a lot, which is a good thing.

Evening came.

Yan Buji sat in the alchemy chamber, reached out, and began refining Spiritual Materials.

The Spiritual Materials were taken from the alchemy chamber's stock; such self‑serving use depends mainly on who is involved.

"I even dare to record the consumption of the Yin‑Yang Reverse Pill's Spiritual Materials in the ledger, unafraid of any audit," he said.

Yan Buji smiled; he invested in Ye Lin because their celestial talent meant they couldn't be an ordinary novice, and their connections could provide Yan Buji with greater opportunities.

So if anyone short‑sighted enough to investigate shows up, he's not afraid.

But in the end, forging ledgers has always been Yan Buji's old trade; hiding it isn't hard. After all, Lian Dan Tang runs its own affairs, and the consumption of Spiritual Materials is under his control.

Besides, no one mandates a monthly consumption quota; using resources that aren't his is just enjoyable!

"It's not yet time to profit for myself; I must quickly create greater self‑value through Lian Dan Tang to attract more attention. Merely having connections isn't enough; solid personal strength is the true path," he said.

Thus Yan Buji intends to accumulate enough experience from prolonged alchemy to soon break through to Sixfold Transformation Alchemist.

But before that, he must make a trip to the Inner Gate to consult Elder Xi Men.