After the engagement was finalized, Qi Zhiheng focused on researching the medicine he needed.

Since the first medicinal soup only required ordinary herbs, Qi Zhiheng quickly collected the herbs for the first dose of the Bone Cleansing and Purification Soup, and bought seeds and planted some in his space. In addition, he also needed to buy seeds for spiritual herbs and plant them. Spiritual herbs mature slowly, so they needed to be planted first and nurtured with wood-type spiritual power to ensure that the spiritual herbs could continue after the first stage.

In short: the medication must not be stopped.

Qi Zhiheng browsed through some body-tempering methods in the attic and finally chose the one that was most suitable for him at the moment, named "Five Elements Body Tempering Method".

Why is this cultivation method suitable? Because it's the cheapest and can be used in conjunction with medicinal soups. Other methods use lightning, gale force, or water to forge the body—all sorts of things, and these are hard to find. The "Five Elements Body Forging Method," however, can use all sorts of things to forge the body, encompassing everything. Lightning can be used, gale force can be used, body-forging medicinal soups can be used, and even various five elements of spiritual energy can be introduced into the physical body to refine it. After completing the first level, one can achieve a body of steel! It sounds amazing, and it's incredibly economical! Qi Zhiheng also thought this method was absolutely the best!

But what cultivation method in this world is perfect? ​​The Five Elements Body Forging Technique also has a side effect!

The first level of the Five Elements Body Tempering Method involves incorporating body-tempering substances into the body, which will constantly temper the flesh and bones. The tempering process is like cutting flesh and gouging out bones, and it is a process that is beyond the endurance of ordinary people. The substances entering the body will increase the volume of the flesh. The increased volume is of course not muscle. In layman's terms, the increase in the volume of the flesh will lead to obesity.

The more body-refining substances one absorbs, the more painful it becomes, and the more obese one gets. Those who cannot endure the pain may not be able to cultivate to the second stage even after a hundred years.

Qi Zhiheng did not hesitate for long before deciding to choose the "Five Elements Body Tempering Method".

He desperately wanted to become stronger quickly, strong enough to protect his family, as long as he could cultivate faster.

Qi Zhiheng searched around the attic and chose a good-sounding alchemy manual called "The Transformation Technique".

I practiced the technique several times.

After taking out the prepared medicinal herbs and choosing the body-strengthening method, Qi Zhiheng began to concoct the medicinal soup. The medicinal soup was not something that could be made simply by putting the herbs in; Qi Zhiheng had also specifically consulted medical books related to concocting medicinal soups.

Qi Zhiheng prepared a bath tub and a large bronze stove. Of course, a medicine stove would be the best if he could have one, but unfortunately, medicine stoves were too expensive, so Qi Zhiheng had to settle for a bronze stove as a substitute.

The bronze furnace was filled to eight-tenths full with water, which was used to brew the medicinal soup.

Qi Zhiheng first used the fire control technique from the "Transformation Technique" to boil the water in the bronze furnace.

Then arrange the medicinal herbs one by one according to the refining order. Many medicinal herbs will enter a state of suspended animation after being picked in order to maintain their medicinal power. Therefore, before putting them into the water, you need to use your soul power to activate the medicinal power of some of the herbs. Qi Zhiheng failed the first time he tried. His soul power rushed around inside the herbs and failed to activate them. Instead, he destroyed most of their medicinal properties.

Helpless, Qi Zhiheng had no choice but to take out another identical medicinal herb from his spatial storage and try again.

This time, Qi Zhiheng was much more careful. He first wrapped the medicinal herbs with his soul power, and then extended it inward. The herbs had their own operating routes, and at the end of the routes was a spiritual energy core. Activating this spiritual energy core would allow the medicinal effects to be fully exerted. The operating routes of each kind of medicinal herb were different, some simple and some complex. The higher the grade of the medicinal herb, the more complex the operating routes were. Because of the complexity of the operating routes, the longer it would take to mature.