In the martial arts world, he threatens Yin Susu from the start.

"The senior who passed on his skills to me before practiced the 'Northern Darkness Divine Art'. Although he was a grandmaster, he never absorbed the internal energy of others."

"Huh? Then what should I learn?"

Azi was somewhat disappointed.

She loves to show off.

Seeing Azi's disappointed face, Gu Hanyuan smiled gently and said:

Have you ever heard of the "Nine Yin Manual"?

"The 'Nine Yin Manual' that the Five Greats fought over back then?"

The "Nine Yin Manual" was very famous in the Song Dynasty.

Ah Zi had also heard of it.

Gu Hanyuan nodded and said:

"I can teach you the 'Nine Yin Manual'. The 'Nine Yin Manual' is not only all-encompassing with many practical moves, but more importantly, it can improve one's aptitude."

Upon hearing that she could learn the "Nine Yin Manual," which even the Five Greats would fight over, A'Zi's face lit up with joy, and she said:

"Great, brother-in-law. I want to learn the 'Nine Yin Manual'."

However, Gu Hanyuan dampened A Zi's spirits once again.

"Before that, we need to neutralize the poison in your body. Your current internal energy is all stimulated by toxins. Your foundation is unstable, and it would be too difficult to switch to other methods. It would be easier to neutralize it directly."

"Brother-in-law, will it hurt? I'm afraid of pain."

Azi was somewhat timid.

Gu Hanyuan gently stroked Azi's cheek again to comfort her:

"will not."

"Then brother-in-law, you come. I trust you."

A Zi's face flushed with embarrassment.

Her beautiful eyes were full of trust.

Gu Hanyuan grasped Azi's hand and neutralized all the poison in her body.

Azi was somewhat weak after losing her internal energy.

But she still patiently waited for Gu Hanyuan.

Gu Hanyuan smiled gently:

“Azi, the poison in your body has been neutralized. Now I will teach you the ‘Nine Yin Manual’.”

Of course, what was taught to Azi was a simplified version of the "Nine Yin Manual".

The complete version is all-encompassing and contains too much information; it's unnecessary.

Azi began practicing the "Nine Yin Manual" as instructed.

His internal energy was quickly restored.

And the progress was extremely rapid.

The "I Ching Bone Forging Chapter" has a very obvious effect on improving aptitude.

Azi's cultivation level was not high to begin with.

They relied heavily on bizarre poisons and clever tricks when roaming the martial arts world.

Therefore, by cultivating the "Nine Yin Manual", he quickly surpassed his original realm.

Azi awoke from her meditative state.

He smiled happily at Gu Hanyuan:

"Brother-in-law, the 'Nine Yin Manual' is amazing! My internal energy is even greater than before."

"Azi, cultivate diligently from now on and strive to become a renowned female grandmaster as soon as possible."

Gu Hanyuan gently stroked Azi's little head and encouraged her.

Azi showed an expression of enjoyment and replied in a sweet voice:

"Ok!"

However, Azi's expression quickly fell again.

Looking at Gu Hanyuan's handsome appearance, she asked in a soft voice:

"Brother-in-law, why are you so good to me?"

Gu Hanyuan chuckled and said:

"I'm your brother-in-law, isn't it only right that I treat you well?"

Azi kicked at the small pebbles at her feet.

Her pretty face was full of conflicted emotions.

"But I don't want you to be my brother-in-law anymore."

Gu Hanyuan asked the question knowingly:

"why?"

"I like my brother-in-law."

Ah Zi was not at all like her usual mischievous self at this moment.

Looking into A Zi's bright eyes, Gu Hanyuan asked gently:

"Ah Zi, are you serious?"

Azi said very firmly:

"seriously."

Gu Hanyuan changed the subject:

"Actually, there are ways to accumulate internal energy quickly."

"any solution?"

Azi was a little confused.

Why are we suddenly talking about cultivation again?

Gu Hanyuan stroked Azi's lips with his thumb.

"I also have a dual cultivation technique. As long as you cultivate with me, Azi, your internal strength will increase extremely quickly."

Azi's face flushed red, but she did not resist.

He asked in confusion:

"Double cultivation?"

Gu Hanyuan whispered in Azi's ear.

Azi's face was already red to the roots of her ears.

With a mix of nervousness and anticipation, he asked:

"Is brother-in-law really okay?"

Gu Hanyuan lightly touched Azi's lips...

"I like Azi very much too."

Azi felt a tingling sensation on her scalp.

Unfortunately, I didn't have time to savor it.

Gu Hanyuan had already left.

She smacked her lips and asked shyly:

"Then you won't be my brother-in-law anymore, right?"

Gu Hanyuan smiled with a subtle expression:

"I have many women. But only one of them calls me brother-in-law. Doesn't Azi want to be that one and only?"

When Azi heard Gu Hanyuan say that...

His expression suddenly became somewhat dazed.

He said emotionally:

"Of course I want to. Brother-in-law..."

Gu Hanyuan put his arm around Azi's waist and whispered:

"Azi, shall we go back with your brother-in-law?"

Azi wrapped her arms around Gu Hanyuan's neck and acted coquettishly:

"Brother-in-law, carry me back."