The Xi Clan's residence.
In the cultivation room of the Cultivation Tower, Kang Shin-mu and Xi Yuying had been cultivating for seven consecutive days.
During these seven days, Xi Yuying constantly used various dragon techniques to attack Kang Shin-mu's Black Dragon body. In the beginning, she only managed to seriously injure Kang Shin-mu after several attacks, allowing the body-tempering dragon technique to improve a little.
However, as time passed, Xi Yuying's dragon technique also improved as she continued to use it. Moreover, as she gained a better understanding of Kang Shin-mu's Black Dragon body, her attacks became more and more accurate, and the damage became faster and faster.
In seven days, Kang Shin-mu devoured a total of nearly 100 Monster Cores of the Flame Demon Beasts before he could fully recover. After all, he had now cultivated the dragon technique of the Mana Crystal Body. While he had become stronger than before, he needed more energy to recover through devouring power.
After seven days, Kang Shin-mu's Mana Crystal Body had finally reached the level of the Human Tier. The overall defense of his Black Dragon body had increased by three to four times compared to before he had cultivated the Mana Crystal Body.
If he raised it to the Earth Tier, the gap would be even greater. Unfortunately, it was not that easy to cultivate the Mana Crystal Body to the Earth Tier.
It was already good enough that his Mana Crystal Body had reached the Human Tier in just seven days.
As a result, Xi Yuying discovered that her various methods were useless against Kang Shin-mu. No matter what methods she used, they couldn't cause much damage to Kang Shin-mu's Black Dragon body. They could only leave some shallow scratches.
However, after seven days of continuous release of power, she found that she was becoming more and more proficient in using the power within her body. She was also more proficient in using the various dragon techniques.
Although she was called over by Kang Shin-mu to help cultivate the Mana Crystal Body, she might have gained something in the process. In fact, if she wanted to achieve this kind of cultivation effect outside, not only would she encounter a lot of danger, but she would also not be as efficient.
For Xi Yuying, continuously releasing the Dragon Martial Skill for seven days was like training outside for a month.
Her familiarity with each of the dragon skills increased as she continued to use them. Some of the Human-level dragon skills directly leveled up to the Earth-level dragon skills. However, her best skill, Sunlit Snowfall, was still at the Earth-level. It was still a step away from reaching the dragon level.
However, he was just a little bit away.
"If I work harder, I might be able to obtain the first Dragon Martial Skill to reach the Dragon Level!"
Xi Yuying began to like this kind of cultivation method.
Kang Shin-mu became her target, constantly withstanding her attacks, allowing her to familiarize herself with her Dragon Martial Skill. In this process, it could be said that both of them had improved, and it had a very good training effect for both of them.
In Xi Yuying's eyes, Kang Shin-mu had already become her exclusive sparring partner.
This was especially so after Kang Shin-mu's Mana Crystal Body reached the Human-level. Her ordinary methods were actually unable to injure Kang Shin-mu severely. Even Sunlit Snowfall, which was a dragon technique that gathered all the frost energy in her body, had to be used several times before she could leave a bone-deep wound on Kang Shin-mu's Black Dragon body. Furthermore, she had to specifically attack the same spot.
"So, the body-tempering dragon technique is actually so powerful. It's a pity that it's too difficult to cultivate it."
Xi Yuying shook her head, a hint of admiration appearing on her cold face.
Jiang Shenwu possessed the ability to devour Yao Cores to restore his dragon body. This was an advantage that he possessed, but just by relying on this, there was simply no way for him to cultivate a body refining dragon type martial technique through self-mutilation. The most important thing was still to have a strong willpower.
Otherwise, a single heavy injury would be enough to make him wish he were dead. During these seven days, Jiang Shenwu had been heavily injured at least a hundred times, and every single time, he was injured in a different place. That kind of pain was definitely not something an ordinary person could endure.
"Kang Shin-mu, let's continue."
Xi Yuying's cold face was filled with hope.
Although Kang Shin-mu's Mana Crystal Body had reached the Human-level, she knew that Kang Shin-mu would definitely not be satisfied with that.
"Why do I feel that you're even more eager than me?"
Kang Shin-mu said lazily.
He just lay in the cultivation room, moving from time to time so that Xi Yuying could attack different places. When he was seriously injured, he would devour a Monster Core to completely recover his Black Dragon body, and then continue.
If it wasn't for the bone-deep pain when he was attacked and injured, Kang Shin-mu felt that this cultivation method was simply too easy. He just needed to lie in the cultivation room lazily.
Unfortunately, compared to that kind of pain, most dragon martial artists would still choose to cultivate seriously.
"Of course. My Setting Sun Snow Falling Dragon martial technique will soon reach the Dragon Level. When that time comes, I can seriously injure you with one move. Are you afraid?"
At this point, Xi Yuying had a proud look on her face. This was something she was proud of.
To be able to cultivate the Dragon Martial Skill to the Dragon Level at such a young age was not something an ordinary person could do. Even in the entire Xi Clan Residence, there were only a handful of people who could do this. Although she had only obtained the True Dragon Level Inheritance Blood Essence, it did not mean that her talent was lacking.
"What's there to be afraid of? As long as you don't kill me with one move, it's fine."
Kang Shin-mu still said lazily.
He was more than happy to be heavily injured in one move. This way, he could cultivate the Magic Crystals at a faster speed.
Logically speaking, he could get those stronger dragon martial artists to do this kind of thing, but on one hand, the other party might not be able to control their strength well and really kill Kang Shin-mu. On the other hand, Kang Shin-mu did not want the news of him cultivating in this way to spread.
Xi Yuying was somewhat familiar with Kang Shin-mu. It could be said that they had gone through life and death together, so he could trust her.
Moreover, Xi Yuying did not need to pay for it. It was a win-win situation for both sides.
If he went outside to hire someone to do it, he would have to spend money. To Kang Shin-mu, it was not worth it.
Xi Yuying was not weak, so she could deal with Kang Shin-mu.
"Then let's continue."
Xi Yuying was full of expectations for the dragon martial technique to improve, so she continued to attack Kang Shin-mu's black dragon body. The power of ice and snow howled in the entire cultivation room. Due to the long period of time, a layer of frost formed on the walls of the cultivation room, not melting for a long time.
Three days later.
The saber light condensed from ice and snow whistled down, instantly cutting Kang Shin-mu's black dragon body into three pieces. At this moment, Xi Yuying's dragon martial technique reached the Dragon Level!
However, Xi Yuying did not have time to feel the changes in her body. She turned pale with fright. "Hey, Kang Shin-mu, are you alright?"