So what if I'm useless? I'll become a saint!

The night was as dark as ink, with the moon hanging high in the sky. A figure was moving silently through the dark alleys of Ling Mansion. It was Lei Tingyi.

He held an invisibility talisman tightly in his hand, and his figure was like a dream, and he easily sneaked into Ling Jiuze's private courtyard.

As soon as he stepped into this forbidden area, a strange and familiar aura quietly lingered on the edge of his perception. A demon cultivator?

This thought was like a bolt of lightning that cut through the night sky, causing his heart to suddenly tighten.

Almost in an instant, he concluded that there must be a close connection between the group of evil cultivators with mysterious whereabouts and Ling Jiuze.

He walked lightly, taking every step extremely cautiously, for fear of disturbing any sound in the courtyard.

From afar, a figure came into view. It was a veiled man with an upright posture. He was standing next to Ling Jiuze, and there was an indescribable meaning in his tone.

"Are you sure you want to start taking the improved pills?"

Ling Jiuze's face became extremely ugly, and he subconsciously clenched his palms.

"Yes."

His answer was brief and firm, but the uneasiness in his eyes betrayed his inner struggle.

Although there are risks, he must kill the bitch Ling Jiuan no matter what!

The veiled man shook his head slightly, his tone mixed with a sense of mystery.

"Although the elixir has been improved, its side effects and potential impacts are still unknown. Why are you so impatient?"

Upon hearing this, Ling Jiuze curled up a ferocious smile and said with gritted teeth.

"The effects of the previous pills are becoming weaker and weaker. If this continues, when will I be able to kill that bitch Ling Jiuan? I can't wait any longer. No matter what the cost, I want to see her fall in front of me!"

In his eyes, hatred burned like a flame, almost setting the entire night sky on fire.

Lei Tingyi was hiding in the dark, watching all this, his eyes narrowed slightly.

It seems that the psychological trauma caused by Ling Jiuan to Ling Jiuze is far more serious than he imagined.

He thought to himself that the grudges and entanglements behind this were probably more complicated than he had expected.

I'm afraid even Ling Jiuan hasn't figured it out yet.

Inside the house, the man in black sighed softly and took out a bottle of medicine from his arms. The medicine glowed faintly under the dim light.

He handed it to Ling Jiuze with a low voice.

"This is the latest product. After someone used it, his cultivation level jumped directly from the first level of foundation building to the peak of foundation building."

Ling Jiuze took the pill, his eyes flickering, as if thinking about something.

After a moment of silence, he finally asked.

"What are the consequences?"

The man in black shook his head, with a hint of helplessness in his tone.

"The biggest consequence is that after one's cultivation breaks through the Golden Core Stage, the spiritual energy in one's body will gradually become impure, and eventually one will completely become a demon cultivator."

When Ling Jiuze heard this, a cold smile appeared on his face.

He seemed to be weighing something, but in the end, he smiled coldly with determination flashing in his eyes.

"I'll be a demon cultivator! As long as I can have enough power to crush Ling Jiuan, I won't hesitate even if I become a demon cultivator!"

There was an unquestionable firmness in his voice, and he had already prepared for the worst.

The man in black looked at Ling Jiuze's resolute expression and sighed again, with a hint of helplessness and admonition in his tone.

"Then take it! But your sister is just a waste without spiritual roots. No matter what, she will never be able to break through the Golden Core Stage. It's only a matter of time before you kill her. Why are you so impatient?"

However, Ling Jiuze's expression became even uglier. He tightly grasped the bottle of pills, as if he wanted to concentrate all his anger and hatred into it.

"She ruined Jiuxi, so she must die! Moreover, even if she can't break through the Jindan stage, she now has the strength to kill a Jindan master. No one can guarantee whether she will have any adventures in the future."

His voice was low and firm, and every word revealed his deep hatred and fear for Ling Jiuan.

Now Ling Jiuze dare not underestimate Ling Jiuan anymore.

The man in black's expression became complicated when he heard this.

He looked at Ling Jiuze thoughtfully and spoke slowly.

"Killing someone above your level is indeed quite interesting. It seems that your sister is indeed someone who should not be underestimated. However, since you have made up your mind, then do it according to your idea. But remember, once you embark on this path, there is no turning back."

There was a hint of heaviness and warning in his tone. Every decision he made would come at a heavy price.

Ling Jiuze didn't hesitate at all. He poured out a pill and swallowed it directly into his mouth.

The pill melted in his mouth as soon as it entered his mouth. A powerful spiritual energy instantly surged in his body. In an instant, his cultivation level broke through the Golden Core Stage and reached a new height.

However, this breakthrough did not bring the expected joy.

However, within a moment, the originally pure spiritual power in his body began to gradually transform into black gas, which was an aura belonging to the devil.

Lei Tingyi looked at this scene and couldn't help but be shocked.

He had not expected that this elixir would be so powerful that it could allow a cultivator to break through his cultivation level in a short period of time, but at the same time it would also gradually push him into the abyss of evil cultivation.

The man in black nodded, as if he had expected all this.

"Since you have used this elixir, then you should strengthen your cultivation! Take another one a month later, and you will be able to break through to the fifth level of the Golden Elixir. But remember, every breakthrough will make your demonic energy stronger. By then, I'm afraid you really won't be able to turn back."

When Ling Jiuze heard this, a hint of determination flashed in his eyes.

He smiled coldly, not caring whether he would become a demon cultivator.

As long as he can possess enough power to crush Ling Jiuan, he will not hesitate even if it means becoming a demon cultivator!

The man took out a jade pendant from his arms and gently threw it into Ling Jiuze's arms.

The jade pendant exuded a faint warm luster, and seemed to contain some mysterious power.

"This jade pendant can hide the demonic aura in you."

The man said calmly.

“Before you break through the Nascent Soul stage, no one can detect your demonic aura unless they are experts in the Void Refining stage. But if you break through the Nascent Soul stage, people with extremely strong talents like Lei Tingyi, as long as they also break through the Nascent Soul stage, will be able to detect something about you.”

When Ling Jiuze heard this, his expression changed.

He held the jade pendant tightly and could feel the power contained in it.

he asked in a deep voice.

"What about the rest?"

The man smiled coldly, with a hint of disdain in his tone.

"Others, unless they have also reached the Void Refining Stage, will never be able to detect your demonic aura. No one in the entire Chenzhou can detect your abnormality."

Ling Jiuze felt relieved when he heard this.