So what if I have a few billion concubines while I'm cultivating immortality?

That night, the rear hall of Zichen Palace became lively.

Qin Xiao formulated a strict training plan.

During the day, they each practiced their techniques to solidify their foundation.

At night, I would practice with him.

In the first few days, the women were a little reserved.

But once one becomes immersed in cultivation, one can no longer care about anything else.

Yu Qingyi was originally at the seventh level of Qi Refining. In such a rich spiritual energy environment, coupled with Qin Xiao's dual cultivation guidance, she broke through to the eighth level of Qi Refining on the seventh day.

Li Anning and Li Changle were the most talented and progressed extremely quickly. A month later, they both reached the fourth level of Qi Refining.

Luo Qingluan and Mu Ziyan made steady progress and successively broke through to the fifth level of Qi Refining.

Even Yu Fengling, who had the worst aptitude, broke through to the fourth level of Qi Refining under Qin Xiao's special care.

Although she only has three spiritual roots, she excels in hard work.

I took each dual practice session extremely seriously, and I managed to catch up through sheer hard work.

In the second month, he practiced even more diligently.

Qin Xiao began to teach the women the spells from the "Mysterious True Technique".

Yu Qingyi specializes in water-attribute magic, and the Cold Water Sword, when combined with the "Ice Condensation Technique," becomes even more powerful.

Luo Qingluan cultivates both metal and water techniques, mastering the "Golden Needle Technique" and the "Water Curtain Technique," making her adept at both offense and defense.

Mu Ziyan is skilled in both water and earth magic, specializing in "Earthfall Technique" and "Water Curtain Technique," and excels in field control and defense.

Li Anning has a pure fire elemental root, and Qin Xiao specially taught her the "Fireball Technique".

Li Anning possesses a rare "Wind Spirit Root," and Qin Xiao selected the "Wind Blade Technique" to teach her, which turned out to be an exceptionally good match.

Yu Fengling's three spiritual roots were mixed, so Qin Xiao taught her the "Golden Needle Technique", "Water Curtain Technique", and "Wood Healing Technique".

While not an expert in any particular field, they excel in being well-rounded.

Practicing magic during the day, and engaging in dual cultivation at night.

The spiritual energy is continuously refined and strengthened through repeated cycles.

In the middle of the third month, Yu Qingyi was the first to break through to the ninth level of Qi Refining!

Immediately afterwards, Li Anning and Li Changle broke through to the eighth level of Qi Refining.

Luo Qingluan and Mu Ziyan reached the seventh level of Qi Refining.

Yu Fengling finally broke through to the sixth level of Qi Refining.

At this time, Qin Xiao's cultivation level had naturally reached the peak of the late Core Formation stage!

The golden core within his body shone brilliantly, and fine Dao patterns appeared on its surface.

With just one opportune moment, one can shatter their core and form an infant, thus entering the Nascent Soul stage!

But Qin Xiao was not in a hurry to make a breakthrough.

To reach the Nascent Soul stage, one must be fully prepared.

......

On this day, Qin Xiao arrived at the alchemy room.

The alchemy furnace has been placed in a specially made fire chamber.

The area around the furnace was filled with various spiritual plants and minerals.

He took out "An Introduction to Alchemy", turned to the chapter on Foundation Building Pills, and carefully deduced the alchemy steps three times.

The door to the alchemy room slowly closed.

Qin Xiao sat cross-legged in front of the furnace, and with a wave of his hand, the alchemical fire surged from his palm and disappeared into the fire chamber at the bottom of the furnace.

With full concentration, I began administering the medicine following the planned steps.

The first ingredient, "Dew Flower," needs to be simmered over a low flame for three hours to extract its essence.

The second ingredient, "Earth Vein Root," needs to be burned over a strong flame for the duration of an incense stick to remove impurities.

The third ingredient, "Crimson Flame Fruit," requires first breaking open the peel, then enveloping the flesh with spiritual energy and slowly infusing it into the medicinal liquid...

There are also star-shaped leaves as a base.

Time passes little by little.

The room was filled with the fragrance of medicine, and the fire in the furnace was sometimes gentle and sometimes fierce.

Qin Xiao kept his divine sense constantly over the alchemy furnace, controlling every aspect of the heat.

The medicinal liquid began to mix, and a "bubbling" sound came from the furnace.

Then, it gradually solidified, turning into a fist-sized bluish-green ointment.

Finally, the furnace lid shook, and under Qin Xiao's control, the ointment suddenly split into twelve small balls, which spun rapidly in the furnace fire.

As the rotation accelerated, the surface of the medicine ball gradually became smooth and round, with faint red patterns emerging.

"open!"

Qin Xiao gave a low shout, and the furnace lid flew off!

Twelve beams of azure light shot out from the furnace, only to be collected one by one by the jade bottle that Qin Xiao had prepared beforehand.

The air is filled with the fragrance of cinnamon, which invigorates the spirit.

"It's done."

Qin Xiao let out a long sigh and looked at the twelve Foundation Establishment Pills in the jade bottle.

Each pill is bluish-green in color, with three faint red lines on its surface.

Looking at the sky again, I realized that several hours had already passed.

......

In the rear hall of the Zichen Palace, all the women gathered.

Qin Xiao placed the jade bottle on the table and glanced at everyone.

"I have already refined the Foundation Establishment Pill, but the Foundation Establishment process is no small matter and must be approached with utmost care."

"Foundation Building Pills can provide the massive spiritual energy needed to break through realms, but whether one can succeed still depends on their individual foundation and temperament."

"I will distribute the elixirs according to your circumstances."

The women held their breath.

"Qingyi, you have the most stable foundation, with the aptitude of a Heavenly Spiritual Root. One Foundation Establishment Pill is enough for you."

Yu Qingyi stepped forward and accepted the pill: "Thank you, my husband."

"Anning and Changle, you are both exceptionally talented, but you have only been cultivating for a short time and your foundation is somewhat lacking. Each of you needs a Foundation Establishment Pill, but you must take it under my protection."

The Li sisters respectfully received the elixir.

"Qingluan and Ziyan, you both have above-average aptitude and a solid foundation. Each of you needs two Foundation Establishment Pills, to be taken in two doses."

Luo Qingluan and Mu Ziyan accepted the pills with serious expressions.

Finally, Qin Xiao looked at Yu Fengling.

Yu Fengling nervously twisted her fingers.

"Phoenix Feather..."

Qin Xiao's tone softened somewhat, "Your three spiritual roots are mixed, and your aptitude is slightly inferior, but you have worked extremely hard these past three months, which I have all witnessed. You need three Foundation Establishment Pills, and you must attempt to break through in three separate attempts under my personal guidance. The process may be difficult; are you confident?"

Yu Fengling suddenly looked up, her peach blossom eyes filled with determination: "Yes! Fengling is not afraid of hardship! I will definitely succeed in establishing my foundation and live up to my husband's expectations!"

Qin Xiao nodded and handed her the three pills.

His gaze swept over the women again: "Foundation Establishment is a complete transformation. Once successful, spiritual energy will liquefy, and only then can one truly step into the gate of cultivation. You all need to adjust your state to its peak and cannot slack off in the slightest."

"yes!"

The six women responded in unison, their eyes blazing with fervent light.

Foundation Building, the threshold they had been waiting for, was finally within reach.

Qin Xiao gazed into the distance outside the palace, thinking to himself: Once the women have successfully established their foundations, he can then focus on preparing for their Nascent Soul formation.

Only when one has reached the Nascent Soul stage is one qualified to explore the "Heavenly Pillar Mountain" and see the "Spirit Devouring Array".

"Alright, you all go and get ready!"

Qin Xiao snapped out of his daze and spoke again.

In the rear hall of Zichen Palace, the doors to the six quiet rooms slowly closed.

Foundation building is the first step in a complete transformation, requiring absolute quiet and undivided attention.

Qin Xiao sat cross-legged at the central array eye, his divine sense spreading out to cover all six quiet rooms.

Although it will not directly interfere with their foundation-building process.

But if someone's life is in danger, they will come to their rescue when necessary.

Yu Qingyi was the first to start.

The quiet room where she was was filled with steam, and the Cold Water Sword hung in front of her, its blade trembling slightly, as if protecting her.

After taking the Foundation Establishment Pill, Yu Qingyi closed her eyes and entered a meditative state. The spiritual energy around her began to slowly rotate, forming a light blue vortex of spiritual energy.

Qin Xiao scanned the area with his divine sense and nodded to himself, "The spiritual energy is pure and the foundation is solid. Success on the first try should be no problem."

In the quiet room next door, Li Anning and Li Changle simultaneously took the pills.

There was a faint glow of fire flowing around Li Changle, which was a sign that the spiritual power of the fire spirit root was manifesting.

Her small face was tense as she tried her best to control the surging spiritual energy within her body.

Li Anning, on the other hand, had her black hair moving without wind, guiding the powerful spiritual energy from the dissolved pills to circulate in her meridians, making the quiet room much quieter.

Luo Qingluan and Mu Ziyan, both of whom are calm and composed, were guiding the medicinal effects methodically with calm expressions.

But what Qin Xiao was most concerned about was Yu Fengling...