Yannan City was shrouded in intricate conspiracies because of the Luo family incident, but Yun Tianyu, who was in the Lightless Forest, knew nothing about it.

At this time, Yun Tianyu, under the command of the Great Demon King, was looking for spirit beasts to fight and enhance his combat experience, while looking for a tall waterfall in the depths of the Lightless Forest, and under the identification of the Great Demon King, he picked some spirit grass that grew in the Lightless Forest.

When Yun Tianyu tirelessly searched for five days in the lightless forest, and finally heard the sound of a rushing and noisy waterfall in the distance in the middle of the fifth night, his heart was overjoyed, and he immediately quickened his pace and rushed over.

"What a big waterfall. Although it was night, Yun Tianyu, who was standing on a boulder, could clearly see a waterfall hundreds of meters high, like a mercury fall, rushing down like a tide at the cliff, impacting the waterfall pool and splashing in all directions, and the rain and mist were in the air.

The sound of the huge waterfall flowing like thunder roared, and it spread fiercely in the mountains and forests for a long time.

"Well, the impact of this waterfall is good, and it is very suitable for cultivating Shadow Killing. Tianyu, you have a good rest tonight, and tomorrow morning, start cultivating. Hopefully, you can survive your own extreme endurance. The Great Demon King emerged from the dream of time and space, glanced at the rushing waterfall, and said with satisfaction.

"Don't worry, the Great Demon King, if you can't even bear this ** pain, I can't become a strong person in the future, and a strong person must have a brave heart. Yun Tianyu said in a firm tone.

After speaking, Yun Tianyu sat on the tall boulder by the waterfall pool, operating the Origin Time and Space Technique, absorbing the rich heaven and earth aura in the jungle, and adjusting his state.

When the morning sun replaced the silent night and sprinkled into the lightless forest, absorbing a large amount of heaven and earth aura, Yun Tianyu, who adjusted his state to the best, took a deep breath, glanced at a very smooth turbulent stone that protruded from the cliff and was hit by the rushing waterfall water, and jumped up.

"Boom!" Yun Tianyu had just jumped onto the rock, and the huge impact of the waterfall water slammed into his body, breaking through the four True Yuan Body Protector defenses, and slamming him into the violently tumbling waterfall pool.

"It's a powerful impact. Falling into the waterfall pool, Yun Tianyu only felt a hot pain in his shoulders and back, and his back that had just been hit by the waterfall was red.

"How. The Great Demon King floating in mid-air glanced at Yun Tianyu who had emerged from the waterfall pool and asked loudly.

"I'm fine!" Yun Tianyu took a deep breath, regardless of the pain, jumped over, jumped on top of the turbulent stone again, and continued to bear the impact of the rushing waterfall.

Although Yun Tianyu is resolute in his heart and has a spirit of not admitting defeat, but with Yun Tianyu's current ** strength, he can't resist the impact of the waterfall pouring down, when Yun Tianyu jumped on the stone for the second time, he was hit into the waterfall pool by the powerful impact of the waterfall again.

"Come again!" Yun Tianyu gritted his teeth, like a bull who refused to admit defeat, jumping on the smooth turbulent stone again and again, and being hit down by the rushing waterfall water again and again.

Just when Yun Tianyu was hit by the rushing waterfall for the fifteenth time and hit the turbulent pool, Yun Tianyu, who was far beyond the body's ability to bear, only felt that his eyes were dark, he fainted, and fell into the waterfall.

"The road of the strong is full of thorns, and if you don't have a brave heart, you can't become a strong man. Congratulations to you little one, you have a strong heart for bravery, and I will help you become a strong man as soon as possible. Seeing Yun Tianyu's courage and spirit of not admitting defeat, the Great Demon King's eyes revealed a hint of relief, and his body floating in mid-air suddenly exerted force, burrowed into the violently tumbling waterfall pool, and hugged Yun Tianyu out of the waterfall pool.

"Hmm!" Just as the Great Demon King drilled into the depths of the waterhole and hugged Yun Tianyu, who had already fainted, the Great Demon King suddenly sensed a vague spiritual power fluctuation at the bottom of the cold pool, and a trace of surprise appeared on his cold, evil face.

However, because Yun Tianyu was too seriously injured, the Great Demon King did not stay too long in the icy pool, and carried Yun Tianyu out of the pool, and landed on the boulder at the edge of the pool, and placed the bloody Yun Tianyu flat on the boulder, took out the spirit grass he picked out from the Qiankun bag, and spewed out a mouthful of hot black flames, refining dozens of spirit grasses into a ball of turquoise liquid, and touched his flesh and blood blurred body.

Moistened by the turquoise liquid refined by the Great Demon King, Yun Tianyu**'s surface injuries recovered at an extremely fast speed, and gradually Yun Tianyu woke up in a coma.

"Thank you, Great Demon King. Seeing the turquoise liquid applied on the surface of the skin, feeling the cool feeling exuding from the surface of the skin, Yun Tianyu, whose whole body seemed to fall apart, said gratefully.

"Tianyu, remember that we are a cooperative relationship, and I am helping you as well as myself. The Great Demon King said coldly, but there was concern in his eyes.

"Don't worry, Great Demon King, I won't let you down, I will improve my strength as soon as possible, open the ninth layer of space-time dream realm, let you recover your strength and return to freedom. Yun Tianyu felt a change in the eyes of the Great Demon King looking at him, and showed a smile and reassured.

"Okay, you hurry up and heal your injuries, and continue to exercise your ** tomorrow, I hope you can withstand the impact of the waterfall as soon as possible and cultivate Shadow Killing." The Great Demon King nodded lightly and urged.

"En!" Yun Tianyu nodded, sitting cross-legged on the boulder, using the Origin Time and Space Technique to accelerate the absorption of the turquoise liquid smeared on the surface of his body to heal his wounds.

After healing all night, when Yun Tianyu absorbed all the turquoise liquid that the Great Demon King had smeared on the surface of his body, the wounds on the surface of Yun Tianyu's body miraculously recovered, and after absorbing the turquoise liquid, the number of aura origin particles in Yun Tianyu's own heart veins continued to increase, and there were signs of condensing the fifth true element.

"Waterfall, come on. The body recovered as before, Yun Tianyu raised his head to the sky and roared, and his whole body burst out with a powerful impact, like a cheetah, jumping towards the waterfall like a silver dragon, and continued to temper his **.

In this way, Yun Tianyu continued to accept the impact of hundreds of meters high waterfalls during the day, refining **, improving ** endurance, and smearing the turquoise liquid refined by the Great Demon King at night to heal the wounds, and after about ten days of repeated repetition, Yun Tianyu, who had absorbed a large amount of turquoise liquid, gradually adapted to the impact of the waterfall hundreds of meters high, and the number of spiritual energy origin particles in his heart veins gradually reached four hundred, and began to condense the fifth true element.

"Yes, yes, now you can cultivate under the impact of the waterfall. As long as you can send out a shadow assassination under the impact of the waterfall, you will be considered successful in your cultivation. The Great Demon King looked at the upper body, his feet were like suction cups on the smooth boulder, and Yun Tianyu, who was pouring down and making a deafening rumbling sound, explained the cultivation method of shadow killing.

"Okay!" Hearing the Great Demon King's explanation of Shadow Killing, Yun Tianyu nodded, raised his weak arm with difficulty, and cultivated under the waterfall according to the Shadow Kill Escape cultivation method.

It took Yun Tianyu ten days to withstand the impact of the rushing waterfall, but if he wanted to cultivate under the waterfall, he needed to pay ten times the hardship.

However, Yun Tianyu is the kind of person who becomes more and more courageous the more frustrated, when Yun Tianyu forcibly cultivated the shadow killing escape, causing his body to lose his strength, and was hit into the waterhole by the rushing waterfall again and again, Yun Tianyu continued to have epiphany in the setbacks again and again.

After about a month's time, the number of spiritual energy origin particles in Yun Tianyu's heart vein, which had broken through the limits of his body over and over again, reached four hundred, and the fifth true yuan was finally formed.

And the power of the True Yuan formed by the four hundred Spiritual Qi Origin Particles was far superior to the ordinary True Yuan, and Yun Tianyu felt that with the strength of his five True Elements, it was definitely better than the Seven True Yuan condensed by ordinary seventh-level Dao masters.

The fifth true yuan was formed, and Yun Tianyu's cultivation of the origin space-time technique reached the third turn of the spiritual source, helping Yun Tianyu break through the bottleneck in one fell swoop and reach the realm of a fifth-level Dao master.

The realm broke through, and the impact of the waterfall became much smaller, and Yun Tianyu could already forcibly cast a shadow kill.

But it will take some time to hone the attack that the Great Demon King said about turning into a shadow.

Time flies, Yun Tianyu tirelessly cultivated under the impact of the waterfall for three months, and finally comprehended the essence of Shadow Killing, and cultivated Shadow Killing Escape to Dacheng.

Shadow Kill Escape cultivated to the end of the day, Yun Tianyu held the Moon Twin Wheels in his hand, and suddenly cast Shadow Kill Escape, and his body, which was almost swallowed by the pouring waterfall, turned into a looming light and shadow, and swept up into the sky at an extremely fast speed, and the five true elements continued to burst out on the surface of the Moon Twin Wheels, shaking the entire waterfall and trembling, exploding huge splashes.

"Huh!" blasted the waterfall vertically, Yun Tianyu's legs tensed, and he jumped forward, drawing a graceful arc in mid-air, and slid towards the Great Demon King.

"Whoosh!" Yun Tianyu slid over in mid-air, and the Great Demon King waved his hand, and the more than ten stones clutched in the palm of his hand attacked Yun Tianyu at an extremely fast speed.

"Shadow Kill Escape!" More than ten stones shot by the Great Demon King flew in, Yun Tianyu immediately cast Shadow Kill Escape, shook his body in mid-air, and conjured up a black shadow, stabbing out the Yueyue Double Wheel in a very short period of time, shattering the more than ten stones shot out by the Great Demon King.

"Very good, with the power of your five true elements, you can use the shadow to kill the escape, even if you are a seventh-level Daoist master, you can be killed by you with one blow. Seeing Yun Tianyu exert the power of shadow killing, the Great Demon King showed a look of satisfaction.

"Thank you, Great Demon King!" Yun Tianyu knew that without the help of the Great Demon King, it would be impossible for him to master the essence of Shadow Killing Escape so quickly and cultivate into Shadow Killing Escape.

"Tianyu, I said, I help you as much as I help myself. Okay, you have a good rest, tomorrow morning, let's go to the bottom of this waterfall to have a look, I feel a very pure aura under here. ”

"There is a very pure aura under this waterfall pool. Yun Tianyu's eyes revealed a look of surprise, he glanced at the waterfall pool that was violently tumbling by the impact of the waterfall water, nodded, sat cross-legged in place, and used the origin space-time technique to absorb the aura of heaven and earth and began to cultivate, pranayama.