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

A female cultivator at the Nascent Soul stage moves with incredible speed. Before Shen Yifei could react, his clothes were gone. Su Wuwang looked down at him.

"I have lived for five hundred years, and you are the first man who has dared to negotiate with me."

"Sect Master, your words put a lot of pressure on me."

"Pressure?" Su Wuwang leaned down, his lips close to his ear, "You'll be under even more pressure later."

She had barely finished speaking when she let out a bloodcurdling scream, "Ah!" The scream was both long and mournful!

Shen Yifei wasn't about to indulge her bad habits. Who could put pressure on him? Now that the medicinal power in his dantian was gradually being released, attacking was his strongest weapon!

As soon as Su Wuwang finished shouting, the pure Yin energy in her body surged out like a flood.

Shen Yifei immediately felt as if he had fallen into an ice cave, the cold air seeping into every pore, into the bones, and into his dantian.

The dark golden core in his dantian began to spin wildly, desperately absorbing the cold energy. But the cold energy was too intense, and the absorption rate could not keep up with the rate at which it surged in.

The original Yuan Yang Pill only offered slight resistance before disappearing without a trace.

Frost settled on Shen Yifei's eyebrows, his lips turned purple, and his teeth began to chatter.

"Sect Master...you're...trying to freeze me to death..."

Su Wuwang ignored him, and the pure Yin energy surged even more fiercely.

Shen Yifei quickly took out a Yuan Yang Pill from his ring and put it in his mouth. The pill dissolved, and a surge of scalding heat exploded from his dantian, flowing through his meridians to his limbs and bones.

The frost on my eyebrows melted away, my lips regained their color, and my teeth stopped chattering.

Su Wuwang was circulating his internal energy with his eyes closed when he suddenly sensed a change within his body, and his brow twitched.

"You took a pill?"

"In business, you have to break even first." Shen Yifei grinned, flipped over and pinned her down. "Sect Master, I've taken your pure Yin energy, now it's your turn to take my Yang energy."

After saying that, he added another Yuan Yang Pill!

The dark golden spiritual energy within him surged forth, intertwining with Su Wuwang's pure Yin energy. The two energies, one cold and one hot, one Yin and one Yang, formed a massive vortex within his body.

The vortex spun faster and faster, and Shen Yifei felt the golden core in his dantian expanding wildly. It grew from the size of a pigeon egg to the size of a chicken egg, and then from the size of a chicken egg to the size of a fist.

Finally, with a "crack," it split open.

Shen Yifei's heart sank.

Oh no, the Golden Core has cracked.

But he soon realized something was wrong. After the golden core cracked open, what was revealed inside was not a fragment, but a smaller, darker-colored golden core.

He broke through to the late stage of the Golden Core realm.

Su Wuwang lay beneath him, her eyes closed, a flush rising to her face. Her pure Yin energy was still surging outwards, but it was no longer as turbulent as before, becoming gentle and continuous.

Shen Yifei looked down at her.

The female cultivator at the Nascent Soul stage, the sect leader of the Joyful Union Sect, was like a fish thrown ashore, panting with her mouth open and her chest heaving violently.

"Sect Master, I accept your pure Yin energy."

Su Wuwang opened his eyes, which were covered with a layer of water mist.

"You certainly know how to pick your moments."

She reached out and pushed Shen Yifei's chest, but couldn't budge him. The difference between the late Golden Core stage and the mid-Nascent Soul stage was still insurmountable, but at this moment, she was so weak that she didn't even have the strength to push him away.

Shen Yifei took out another Yuan Yang Pill from his ring and put it in his mouth. The pill dissolved, and his Yuan Yang Qi increased significantly.

He looked down at Su Wuwang, his gaze sweeping over her face.

"Sect Leader, where did your force that was trying to freeze me solid go?

Su Wuwang's lips moved, but she didn't utter a single word; her dantian was in complete chaos.

He still possessed five hundred years of cultivation, but he couldn't mobilize it at all at the moment.

"Not going to speak? If you don't speak, I'll take that as your tacit consent." Shen Yifei smiled maliciously.

"You... are you ever going to stop? I am the sect leader, how dare you..."

"You are the sect leader, but tonight, you are not."

……

……

After a night of dual cultivation, the golden core in Shen Yifei's dantian spun steadily, and his cultivation at the late stage of the Golden Core realm was completely consolidated.

Su Wuwang lay there for a while, catching her breath. She turned her head and looked at Shen Yifei's profile.

"Do you know that for what you did to me tonight, I could kill you ten times over?"

"I know," Shen Yifei said with his eyes closed, "but you won't."

Why?

"Because if you kill me, where will you find another vessel to withstand your pure Yin energy?" Shen Yifei turned his head to meet her gaze. "Sect Master, we're in the same boat now. You need my Yang energy to harmonize the Yin energy within you, and I need your pure Yin energy to enhance my cultivation. This is business, not enmity."

Su Wuwang stared at him for a while, then suddenly laughed.

"You seem to see things quite clearly." She propped herself up on her elbows, looked down at her body, and frowned. "My body is covered in your marks."

"The sect leader's pure Yin energy froze my Golden Core, so we're even."

Su Wuwang placed her hand on his dantian and probed it with her divine sense. His late-stage Golden Core cultivation was evident in the dark golden core, which was even more solid than the night before. Her pure Yin energy fused well within him, showing no signs of rejection.

"Your constitution is indeed special." She withdrew her hand. "My five hundred years of pure Yin energy would have frozen anyone else into an ice sculpture long ago. Not only did you withstand it, you even managed to turn the tables."

"Talent." Shen Yifei sat up. "Sect Master, it's dawn. I should go."

Shen Yifei fastened his belt, turned around and looked at her.

"Sect Master, the way you look at me makes it look like you want to devour me."

"Eat you?" Su Wuwang chuckled. "I can't even get out of bed right now, what am I going to eat you with?"

"That's perfect." Shen Yifei walked to the bedside, bent down and kissed her forehead. "You rest, I'll come again tonight."

Su Wuwang was stunned for a moment by his kiss.

"you……"

Shen Yifei had already reached the door. He opened it, and the morning light streamed in. He turned and glanced at Su Wuwang.

"Sect Master, if you feel you were wronged last night, you can return the favor tonight."

Su Wuwang leaned against the headboard, reached out and touched the spot on his forehead where he had been kissed, and his lips twitched slightly.

"Little beast."