The Hehuan Sect cultivates alchemy; my senior sister helps me refine alchemy throughout the world.

Shen Yifei's mind was stirred by Liu Mengli's words. It was indeed a good idea, but this little demon was too cunning. If she were released, she might harm him, which would be a loss.

Seeing that Shen Yifei remained silent, Liu Mengli continued, "Don't rush to refuse, let me finish. I am a Nightmare Demon, I can enter dreams. Once I enter his dream, I can drain him dry. When he dies, people will only think he went mad and died suddenly."

Shen Yifei thought this method sounded good; it would be done without anyone noticing, and no one would be able to trace it back to him.

How do I know you won't turn against me once you're out?

"You have this broken cauldron in your hands. If that thing can capture me once, it can capture me twice. If I dare to betray you, you can just put me in there and refine me again."

Shen Yifei thought about it and felt that what she said made sense. The Cauldron of All Things was his trump card, and Liu Mengli had witnessed its power, so she shouldn't dare to act rashly.

"I can release you, but I have one condition."

"What are the conditions?"

"You must acknowledge me as your master."

Liu Mengli remained silent for a while: "How do you recognize them?"

Shen Yifei took out the book "Yin Yang Sexual Enhancement Technique" from his ring and turned to the last page.

There was a contract formation there, which he had accidentally seen while flipping through a book.

This magic array can bind the souls of humans, demons, and beasts together with the soul of their master. If a beast dares to betray them, the master can destroy its soul with a single thought.

"Inscribe this magic circle onto your soul."

"You..." Liu Mengli's voice changed, "When did you learn this move?"

"I just learned this. If you don't agree, I won't let you out."

Liu Mengli fell silent again, and Shen Yifei thought she wouldn't answer.

After a long silence, she finally spoke, her voice filled with a sense of resignation, "Fine! I'll acknowledge you as my master. But you have to promise me one thing."

"What is it?"

"Don't lock me in that broken cauldron anymore. It's so gloomy in there, I can't see anything, it's suffocating me."

Shen Yifei chuckled: "Alright, you can stay by my side."

He took out the Cauldron of All Things and probed it with his consciousness. Liu Mengli, wrapped in his outer robe, squatted in the corner, her green eyes fixed on his direction.

"Ready?" he asked.

"Come on." Liu Mengli stood up and took a deep breath.

Following the method in the book, Shen Yifei condensed a wisp of his soul, which transformed into a thin thread and entered Liu Mengli's brow.

Liu Mengli trembled and let out a soft moan. The sound was soft and sweet, like the little tune she hummed when she bathed in the river, which made Shen Yifei's heart flutter.

"Don't move." He steadied himself and probed the depths of her soul with his spiritual thread.

Liu Mengli's soul was different from what he had imagined. He thought that a demon's soul should be chaotic and violent, but Liu Mengli's soul was as clear as a spring, with a faint sweet fragrance.

"You...you be gentle..." Liu Mengli's voice trembled.

Shen Yifei ignored her and focused on inscribing the magic circle onto her soul. The whole process lasted about the time it takes to brew a cup of tea. By the time the magic circle was finished, Liu Mengli had collapsed to the ground, panting heavily.

Shen Yifei withdrew his consciousness from the cauldron, and with a thought, Liu Mengli disappeared from the cauldron.

The next moment, Liu Mengli appeared in front of him.

He was still wearing that loose outer robe, the collar slipping down his shoulders to reveal a section of his pale shoulder.

Her hair was loose, her face was flushed, and her green eyes were watery.

Shen Yifei looked her up and down: "Could you please put your clothes on properly?"

Liu Mengli looked down at herself and pulled her collar up, but the outer robe was too big and slipped down again as soon as she pulled it up. She simply stopped pulling it up and stood there loosely.

"Your clothes are too big, I can't wear them."

Shen Yifei sighed, rummaged through his ring, found a set of inner disciple robes he had worn a long time ago, and tossed them to her: "Change into these."

Liu Mengli took it, unfolded it, looked at it, and pouted: "A men's bag? And it's so big!"

Liu Mengli didn't try to hide it from him and took off her outer robe right in front of him. Shen Yifei turned his head away, pretending to look out the window.

"Oh, still shy?" Liu Mengli's voice was laced with laughter. "Why weren't you shy when you were eating me?"

Shen Yifei ignored her. A rustling sound came from behind them, and after a while, Liu Mengli said, "Okay."

He turned his head, and Liu Mengli stood in front of him, wearing his robe.

The robe was too big; the sleeves were too long, and the hem dragged on the ground, making him look like a child who had stolen an adult's clothes.

But her face was so beautiful that even the largest robe couldn't hide her alluring charm.

"It's too big." Liu Mengli raised her sleeve to look at it, then looked down at the hem that was dragging on the ground.

"I'll buy you a few suitable outfits later." Shen Yifei stood up and walked in front of her. "Besides entering dreams and seducing people, what else can you do?"

Liu Mengli smiled, and with a slight sway, she disappeared from his sight.

"Hmm, where did you go?" Shen Yifei couldn't see Liu Mengli and thought something bad had happened!

He reached forward and touched something soft and warm.

"Where are you touching?" Liu Mengli's voice came from in front of him, tinged with annoyance.

Shen Yifei quickly withdrew his hand: "I was just testing if you were there."

"Fine, I'll try it, but why are you touching my breasts?"

"I didn't touch your breasts, I touched the air."

"Air my foot!" Liu Mengli revealed herself, her face flushed, her green eyes glaring at him.

Shen Yifei chuckled, ignoring the question: "So you can become invisible. How long can your invisibility last?"

"As long as I don't move, I can maintain this for a day. If I do move, it depends on how much spiritual energy I consume."

"Okay." Shen Yifei nodded. "Tonight, go into Han Zhengli's dream and drain him dry."

Liu Mengli was taken aback: "So soon?"

"Urgent. The sooner we kill them, the better."

Liu Mengli stared at him for a couple of seconds, then suddenly laughed: "Little guy, you look honest and simple, but when you get ruthless, you can be more ruthless than anyone else."

"Stop talking nonsense, are you going or not?"

"Go, why wouldn't I go?" Liu Mengli stretched, her robe fluttering to reveal a section of her fair legs. "But I have a condition."

"What are the conditions?"

"After this is done, you have to buy me some decent clothes. I can't bear the embarrassment of wearing these big robes of yours every day."

Shen Yifei laughed: "Okay, I'll buy it for you."

That evening, Shen Yifei made a special trip to Qin Wan's place.

When he left, he deliberately let several disciples who were returning late see him walking towards Qin Wan's courtyard.

"Junior Brother Shen, who are you seeing so late at night?" someone greeted him.

"Yes, I need to talk to Senior Sister Qin about something." Shen Yifei smiled憨厚ly.

Another person laughed and said, "Junior Brother Shen, I heard you also have other matters to attend to in the outer sect? Can you manage all of this by yourself?"

In the Hehuan Sect, it's no secret who cultivates with whom; it's all normal practice.

The more partners you have for dual cultivation, the more popular you are, and the more people will envy you.

Soon, Shen Yifei arrived at Qin Wan's door.