Liu Bo doesn't have a sense of consciousness now, so the shadow needle can't be collected into the dantian, and he can only use the basic functions of the shadow needle according to the few laws introduced in the jade slip, and one of them is very practical.

Next, according to the introduction, Liu Bo used all the methods of using the Shadow Needle. The power of the top-grade celestial weapon is really extraordinary, he just uses it normally, and without casting the blessing of the Heaven Breaking Strike, the power is already very amazing. Liu Bo was pleasantly surprised in his heart, knowing that he had added another powerful hole card.

Putting away the Shadow Needle, Liu Bo began to study the "Cold Flame of Cold Marrow", which was very important to him.

Looking at the "Cold Flame of Cold Marrow" in the jade box, Liu Bo couldn't hide the excitement in his heart, and secretly sighed that having the backing of the family was different, so the spiritual flame comparable to a treasure was easily obtained.

Keeping in mind his grandfather's warning, he opened the lid of the jade box, and according to the method introduced in "Spark Inheritance", he only absorbed the breath of the spiritual fire, and did not dare to touch the body of the spiritual fire.

With the absorption of the aura of spiritual fire, Liu Bo felt that the "Xuanbing Cold Flame" exercise that was in operation had made significant progress. Originally, the concentration of aura here was more than fifty times that of the outside world, and he had already reached the fifth layer of Qi cultivation and the fire system technique had made significant progress, and at this speed, he felt that he would break through the bottleneck of the fifth layer and reach the sixth level of Qi cultivation in one day.

However, after absorbing the breath of the spiritual fire, the breath of the spiritual fire was completely consistent with the "Xuanbing Cold Flame" true qi that he had cultivated, and it was directly integrated into the running true qi without the slightest reluctance. And after these spiritual fire breaths were added, the true qi in the meridians actually improved a little in essence, so that the operation efficiency of his true qi also increased slightly.

Ordinary people absorb the breath of spiritual fire in their meridians, and the meridians will burn painfully and are difficult to adapt, so the breath of spiritual fire cannot be absorbed for too long, otherwise the meridians will be burned.

However, Liu Bo's meridians are now completely different from ordinary people, after the continuous transformation of the bloodline origin, their resilience has increased greatly, so after the breath of spiritual fire enters the meridians, he does not feel the slightest burning pain, but only feels that the meridians are getting cooler and cooler, and the true qi is becoming more and more smooth.

In his ignorance, half a day had passed. With the assistance of the spiritual fire aura, Liu Bo's true qi was running more and more smoothly, and the true qi that had been accumulated to the limit finally began to hit the bottleneck of the sixth layer of qi training.

Liu Bo's abundant accumulation of true qi, coupled with the continuous influx of true qi into the meridians from the outside world, as soon as the bottleneck of the sixth layer of qi cultivation rushed open, the surging true qi poured into a wider new river channel towards the flood that broke the embankment.

But at this moment, the spiritual fire in the jade box actually jumped into his meridians with the surging aura that entered the meridians.

The change of spiritual fire was so shocking that Liu Boxuan's soul was scattered, and what Liu Tianxiong repeatedly admonished, he always kept in mind and did not dare to disobey in the slightest. How did he know that breaking through the bottleneck would cause this kind of thing, Liu Bo was shocked in his heart, and there was no other way for a while, but to use the true qi in the meridians and wrap the spiritual fire layer by layer, so as to delay the burning of the spiritual fire on the meridians.

But how could the true qi of the sixth-layer realm of practicing qi be wrapped in the incineration of the spiritual fire, but in an instant, the true qi wrapped in Liu Bo's layers was incinerated out, and it was about to burn to the meridians. But at this moment, a stream of Xuanhuang Qi escaped from the Qiankun Ding again, directly wrapping the spiritual fire in the meridians, and then flowing into the dantian qi sea along his meridians.

The spiritual fire entered the sea of qi, and the Xuanhuang qi that enveloped the spiritual fire also overflowed and merged into the entire dantian. Although he didn't know what all this was about, Liu Bo also knew that now was a rare opportunity for him, so he quickly abandoned all distracting thoughts, re-operated the true qi in the meridians according to the "Spark Transfer" exercise, and began to practice the "Spark Transfer" exercise that could only be introduced during the concentrating period.

It was dark and bright, and unconsciously, Liu Bo had been practicing for half a day and a night, and finally slowly opened his eyes.

"I actually passed the most difficult entry level of 'Spark Salary' in a daze. The 'Spark Inheritance' exercise can only be considered successful if the dantian absorbs a first-grade spiritual fire, but it is the process of absorbing the spiritual fire in this dantian that stops the vast majority of cultivators. Cultivating the 'Spark Inheritance', first of all, the spiritual fire is difficult to find, and secondly, the dantian absorbs this level, which is extremely dangerous, and ordinary people can't get through it. But I just didn't know it, and I passed the most difficult level without any risk, and I still passed it during the Qi training period. Unexpectedly passed the most difficult entry level of "Spark Salary", Liu Bo couldn't believe it for a while.

Although Liu Bo is still in the Qi training period, now that he has passed the entry stage of "Spark Transfer", he can start to officially practice the top technique of "Spark Transfer".

The "Spark Inheritance" exercise can contain all the fire true qi, through the continuous absorption of various spiritual fires, through the secret method to warm and grow the spiritual fire in the dantian, the strong spiritual fire in turn changes and increases the fire attribute of the true qi.

Running the "Spark Inheritance" exercise, Liu Bo had reached the sixth-level "Xuanbing Cold Flame" True Qi of Qi Training, and soon fully integrated into the exercises, and the attributes of the True Qi were affected by the "Cold Marrow Cold Flame", exuding a thick aura of spiritual fire, and now the destructiveness and power of the True Qi have completely exceeded the level of the True Qi during the Qi Training Period.

Although Liu Bo's realm is low now, through the spiritual fire in the dantian, he can already display several spiritual skills. The several primary spiritual techniques recorded in the "Spark Inheritance" exercise can be used as long as the spiritual fire is absorbed in the dantian. Finally able to perform spiritual skills, Liu Bo was extremely excited, and naturally he had to cultivate them one by one.

He can now use four primary spiritual skills, which are the first-grade spiritual skill fireball bullet, the second-grade spiritual skill flame arrow, the second-grade spiritual skill flame shield, and the third-grade spiritual skill Fire Rain.

Among these four spiritual skills, Fireball Bullet and Flame Arrow are both single attack spiritual skills, Fire Rain is a group attack spiritual skill, and Flame Shield is the only defensive spiritual skill.

The fireball bomb is the simplest of the four spiritual skills, and it doesn't take long for Liu Bo to initially master this spiritual skill.

He couldn't wait to make a silent decision, and the surrounding spiritual energy converged towards his palm, and soon an egg-sized incandescent fireball appeared in Liu Bo's palm.

Liu Bo shook his hand and shot the fireball towards the stone wall in front of him. The fireball shot swiftly into the stone wall in front of it, silently, leaving only a deep dark hole the diameter of an egg in the stone wall.

"I didn't expect the power to be so great, this is far more powerful than Brother Yan's 'Red Fireworks'. Moreover, the fireball has the characteristic of 'cold marrow and cold flame', although it is silent when it is cast, and there is no great power, but the actual power is very huge. The huge power of the fireball bullet made Liu Bo very satisfied, and he was looking forward to the other three spirit skills.