Martial research master

"How did you do it?" The extreme Yin tree just saw its companion vanishing moments ago.

"You see, the formation of yours was designed in a very specific way. Your creator not only abandoned you but also bound you with the evil soul on the altar. So as time passed, no matter how powerful he becomes, your end would have eventually meant its end too."

"You are lying." The Extrem-yin tree said. He couldn't believe that its master had betrayed it.

"You believe what you want to do. I don't care at all. What I am about to tell is a single and final offer will hereby be presented to you. I will be devouring your physical form to heal the damage on the artifact, while you will be concentrating your soul seed with all your remaining power and merge with the boy."

"That would result in me losing my consciousness." The Extreme Yin tree said.

'For now yes. But as he grows stronger, so will you and you will gain consciousness soon." The Keeper said.

"I would rather blow myself up." The tree said with a strong-willed voice.

"When I said that it is too late, I meant it for both of you. You see I not only took complete control over the formation, but I also modified the hell out of it as I grew stronger thanks to the altar. The modifications I carried out not only control your energy, drains it, but also gives me complete control over your whole being."

"If you had been at the peak of your power, you might have been able to break out of the formation. Too bad, you are so weak now. I will give you the time of another incense stick to consider whether you will do it willingly or should I force my way through."

The Extreme Yin tree was silent for a long time. He couldn't come up with a proper path of action.

"Suppose I have to do it forcefully." Before the tree could even retort, the formation suddenly rotated with incredible speed, and the Extreme Yin tree lost huge amounts of power to it. The artifact's energy grew stronger and stronger until the tree had practically sunk to the width of a stick.

The Keeper then lifted his hands which began to compress the whole stick down to a single sphere which radiated huge amounts of energy.

"I hope you can bear the power of both of them assaulting you at the same time, but that is the only way to guarantee a high chance of success." The Keeper directed his hand towards Li Meng's direction and the sphere directly rushed into his body. The sphere instantly melted within the body and incredible transformations were taking place.

The sphere directly hung into essence energy which began to integrate with Li Meng's blood and flowed into every corner of Li Meng's body. The essence energy came out of the blood and integrated with  Li Meng's flesh, his bones, and his meridians. Soon the acupoints and Qi channels began transforming too.

It was the same as the metamorphosis which took place every time he completed a realm of body cultivation. But the pain infused by the transformation was 10 times of metamorphosis and hell forged art combined.  Li Meng's veins were popping out and he was continuously coughing out blood.

The reason he was suffering so long was the evil soul which was on its way to integrate with his own. His soul was slowly cracking up and reforming, stronger than ever and the quality was upgrading a whole stage. The pain from the body metamorphosis multiplied the overall pain by a whole level.

Soon enough Li Meng started bleeding from all the crevices of his body. The blood was black for some reason and Li Meng's body was pale by the second. He was losing his life essence which meant his life would be at risk soon. The Keeper decided to take out the avatar from the artifact.

The avatar began to infuse their energy into Li Meng's body, slowly helping him from the injuries. The power slowly began to heal Li Meng up and the color of your body. Yet he still screamed with pain. Li Meng's soul transformation was finally completed and he calmed down a bit. The painful moans came to an end even though the metamorphosis 

The pain from the soul transformation had plunged Li meng's body into unconsciousness. He couldn't feel what was happening to his body. Slowly, his whole body was drained of a huge amount of black blood, and his bones began to restructure themselves, longer and stronger than they were before.

After that, the muscle and tissues began reconnecting and the skin glistened with a grayish shine. The last and most important transformation was the changing of acupoints and channels. It took around half a day for that to complete and finally LI Meng's body rested static on the grounds. The Keeper decided to wait until he wakes up naturally.

Another 2 days passed, and LI meng finally regained consciousness.

"How do you feel?" The Keeper asked.

LI meng made rapid movements and after trying out his new body for several hours, he finally decided to stop. 

"My strength has increased by at least ten times than before. I could also feel my Yin-Yang law base getting stronger and my Hell energy flowing smoother and stronger than before.

"Congratulation son obtaining the Extreme Yin body. Not only hell energy but your period of training will be shortened by at least half for all arts of yin properties. Your control over Hell heaven energy will improve to a large extent, and you can finally start your true cultivation in hell. Your endurance will have increased by at least ten times. That doesn't make you invincible, but you can resist it for much longer."

"You will be able to adapt to the situation much faster than before and we can finally leave for the boundary between the planes to comprehend the world energies."

"I also have very bad news for you."

"What is it?" Li Meng felt his heart palpitate for some reason.

"Now that you have gained an extreme Yin body, we need to search for a treasure which could grant you the extreme Yang body. If not done in a particular period, your body and law base will burst, probably killing you, and most definitely crippling you in the process."

Li Meng was scared shitless, but the Keeper consoled him that they will find an extreme yang treasure soon and he will be able to advance in his cultivation fast.