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

Su Wuwang didn't say a word, turned around and walked towards the bedroom, with Shen Yifei following closely behind.

Last time he almost froze to death here, but this time he was full of confidence. The tiger demon's whip in the Ten Thousand Mountains wasn't for nothing!

The two walked through the corridor one after the other and entered the bedroom. The door closed automatically behind them.

Su Wuwang loosened her belt, and her long dress slipped off her shoulders. She turned around and looked at Shen Yifei.

"Let me see what skills you've learned in the Hundred Thousand Mountains."

Shen Yifei walked over and placed his hand on her lower abdomen, dantian.

Dark golden spiritual energy surged from her palms and seeped into her dantian. The pure yin energy within Su Wuwang's body surged forth and rushed towards his dantian.

Fortunately, his meridians are now much stronger and more robust. Although this pure Yin energy is even stronger than last time, Shen Yifei doesn't feel anything special about it now.

The dark golden elixir spun twice, refining the pure Yin energy bit by bit.

Su Wuwang closed her eyes, a flush rising to her face. She could feel her yin energy flowing through Shen Yifei's body. Unlike last time, it wasn't rushing around recklessly, but rather being enveloped by his yang energy, dissolving little by little.

"Your aura has changed." She opened her eyes.

"It was burned in black flames and soaked in the demonic power of two demon kings. It can be considered as being tempered anew."

Su Wuwang didn't say anything more. She reached out and hooked her arm around Shen Yifei's neck, pulling him towards her.

The two fell onto the bed. Their spiritual energy surged within each other's bodies. Su Wuwang's pure Yin energy was enveloped by Shen Yifei's Yang energy, dissolving layer by layer. The bottleneck that had kept her stuck in the mid-stage of the Nascent Soul realm for many years began to loosen.

An hour later, Su Wuwang lay on the bed, covered in sweat.

With her eyes closed, the spiritual energy within her body flowed more freely than ever before. A crack had been torn open in the bottleneck of the mid-stage Nascent Soul realm, leaving her only a hair's breadth away from the late-stage Nascent Soul realm.

Shen Yifei lay down next to her, and the spiritual energy in his dantian thickened even more.

Su Wuwang's pure Yin energy was still very beneficial to him, but it no longer allowed him to skip a small realm as easily as before. The amount of spiritual energy required for advancement beyond the late Nascent Soul stage is now far greater.

"You have indeed changed." Su Wuwang turned his head to look at him. "Last time you were almost frozen to death by my Yin energy, but this time not only are you unharmed, you can even give back to me."

"Those two demon kings in the Ten Thousand Mountains, did you really cultivate with them?"

"real."

"Didn't they drain you dry?"

"Almost." Shen Yifei rubbed his lower back. "There was a period of time in the Ten Thousand Mountains when I was almost bedridden."

Su Wuwang chuckled. She lay back down.

"I'm only one step away from the late stage of the Nascent Soul realm. Stay a few more days and help me break through."

Over the next few days, Shen Yifei spent his days refining pills in the pill room and his nights in Su Wuwang's bedroom.

Shen Yifei didn't need to worry about the pill refining room; Zhou Yuanqing managed it perfectly. He only needed to focus on refining top-grade pills; one batch was enough for the pill refining room to sell for a month.

Su Wuwang's bottleneck was completely broken on the third night.

The oppressive aura of a late-stage Nascent Soul cultivator surged from the sleeping quarters, felt throughout the entire Joyful Union Sect. The disciples knelt down one after another, exclaiming, "Congratulations on the Sect Master's breakthrough!"

Su Wuwang lay on the bed. The pure Yin energy within her body finally ceased its stagnation and flowed smoothly through her meridians. Her centuries-old ailment had been cured by a mere Nascent Soul stage youth.

"What reward do you want?"

"This disciple wants nothing."

"You don't want anything?" Su Wuwang turned to look at him. "I don't like owing favors."

Shen Yifei thought for a while, "Sect Master, if you want to reward me, I beg you to help me investigate something."

"What's wrong?"

"More than ten years ago, the Tianyan Sect was wiped out overnight. Is it possible to find out who did it?"

Su Wuwang leaned against the headboard, looking at Shen Yifei.

"Why are you asking about the Tianyan Sect?"

"This disciple has some connection with the Tianyan Sect."

Su Wuwang didn't press the matter. Having lived for five hundred years, she knew what she should and shouldn't ask.

"The annihilation of the Tianyan Sect is the biggest unsolved mystery in the cultivation world in the past hundred years. Shen Changtian, who was in the Tribulation Transcending stage, died overnight. Of the more than two thousand members of the sect, less than ten survived."

"Who did it?"

"I don't know." Su Wuwang shook his head. "Back then, several major sects investigated, but they found nothing. They didn't even find Shen Changtian's body. They only found traces of a fight on Cangwu Mountain. The entire mountain was leveled by hundreds of feet."

Shen Yifei remained silent.

Su Wuwang continued, "Some say it was done by one person. One person wiped out the entire Tianyan Sect."

"one person?"

"That's right. The residual spiritual energy fluctuations at the scene are of only one type, indicating that only one person made the move. To kill someone in the Tribulation Transcending stage, one's cultivation must be at least at the peak of the Tribulation Transcending stage, or even higher."

Su Wuwang paused for a moment.

"After the Tianyan Sect was wiped out, several major sects divided up its territory. However, Cangwu Mountain was occupied by the Tianji Pavilion, and no one knew anything about the Tianji Pavilion. Several major sects tried to probe it, but all the people they sent were thrown out. After that, no one dared to go."

"Is Tianji Pavilion still on Cangwu Mountain?"

"Yes. It's been closed off for over ten years, with no contact with the outside world."

Shen Yifei wrote down this information.

"Thank you, Sect Master."

"No need to thank me." Su Wuwang got off the bed, put on his outer robe, and said, "I have repaid the favor I owed you. You can still manage the pill room. You can refine pills when you want, or rest when you don't. The Hehuan Sect has no shortage of pills."

Shen Yifei emerged from Su Wuwang's bedchamber just as dawn was breaking.

He walked down the stone steps, and as he passed the alchemy room, he heard clanging sounds coming from inside. Zhou Yuanqing was already refining his first batch of pills for the day; ever since he became his assistant, the old man had become even more diligent than before.

He didn't go in; he went straight back to his courtyard. Pushing open the door, Liu Mengli floated out of the cauldron and sat cross-legged on his shoulder.

"Master, you live a busier life than an emperor. You refine pills during the day, serve the sect leader at night, and even have to come back to keep me company in the middle of the night."

"When do you need me to be with you?"

"You're sleeping with Su Wuwang, I can't sleep alone!" Liu Mengli's tone was tinged with jealousy.

Others couldn't sleep either. Just as Shen Yifei was about to undress and rest, the door was pushed open.

Sun Yiran stood at the door, wearing a light green dress and holding a tray with a bowl of soup on it.

"Senior sister."

"Ginseng soup, simmered all night." Sun Yiran placed the tray on the table, turned around and left without even looking at him.

Shen Yifei grabbed her wrist.

"Senior sister, sit down and chat for a while."

"Didn't you just come back from the sect leader's place? You still have the energy to chat?"

Shen Yifei pulled her to sit down on the edge of the bed.

"The sect leader is the sect leader, and the senior sister is the senior sister. They are not the same."

"What's different?"

"The sect leader cultivates, but my senior sister is..." Shen Yifei whispered in her ear, "My senior sister really misses me."

Sun Yiran's ears turned red. She had lost a lot of weight in the past two months, and her wrists were noticeably thinner than before. Shen Yifei pulled her into his arms and reached out to feel her lower abdomen.

"My cultivation level hasn't increased much."

"Without you, there's no point in me cultivating."

"It's here now."

Sun Yiran leaned on his shoulder, her voice very soft.

"Are you leaving again this time?"

"Stay for a few days, then go to the Qingyun Sect."

Sun Yiran looked up at him.

"What are you going to the Qingyun Sect for?"

"Luo Qinghe is my lawfully wedded wife, so I have to go back and visit her."

Sun Yiran didn't say anything, but her expression showed that she was somewhat disappointed.

"Senior sister, I may have many women in my life, but you are the first one who has been kind to me." Shen Yifei lowered his head and kissed her forehead. "No one can replace you."

Sun Yiran buried her face in his chest and breathed softly.

"You're just good at sweet-talking people."

"I won't try to coax you. Just stay here with me today."

Sun Yiran raised her head, her eyes shining.

"You said it."

"I said it."

Sun Yiran got up and bolted the door. When she returned, she had already taken off her outer skirt. The light green skirt lay on the ground, revealing a moon-white bodice underneath.

Shen Yifei leaned against the headboard and looked at her.

"Senior sister, you've lost weight."

"I'm just waiting for you to come back and take care of me."