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

Upon hearing Shen Yifei's summons, Shi San immediately transformed into a fire unicorn and appeared before the alchemy furnace.

Shen Yifei opened the alchemy room. "Come on, breathe fire into it, as much as you can!"

The fire qilin took a deep breath, its cheeks puffing out like two balloons. Holding its breath, it opened its mouth and spewed out a pillar of crimson fire.

The pillar of fire pierced into the alchemy room, engulfing Hades. The yang fire was fierce and powerful, specifically designed to counteract yin and evil energy. The black aura surrounding Hades instantly sizzled and emitted plumes of white smoke.

Even though Hades is still a ghost, the intense Yang fire of the Fire Qilin still has an effect on him.

However, his Netherworld Undying Body was no pushover. Although the King of the Underworld was engulfed in black smoke from the fire, he showed no signs of collapsing. He gritted his teeth and endured it, even managing to curse.

"Shen Yifei! A mere beast could burn me to death! My Netherworld Undying Body is unbreakable, even a god couldn't break it!"

Hades' words enraged the Fire Qilin, which relentlessly hurled flames at Hades until it was too exhausted to breathe, ultimately only managing to char Hades black from head to toe.

The fire qilin was panting heavily, its tongue lolling out: "My lord... I... I can't breathe anymore, I need to rest for a while."

Shen Yifei waved his hand, telling it to go and rest to the side.

Shen Yifei frowned deeply.

The fire from the Qilin would have reduced any other creature to ashes long ago. Hades' constitution is indeed special; pure Yang fire is effective against him, but not completely.

There must be something missing!

He suddenly remembered a detail: he had once stabbed Hades when they fought him.

At the time, I thought it was the power of my sword technique, but now it seems that's not the case!

Especially the last sword strike, although Guixu was a one-way trip with immense power, it seems that the sword technique at that time was simply not enough to pierce the King of the Underworld's dantian.

The fusion of the five elements' magical power and the power of curses, combined with the Return to the Void sword technique, was merely the foundation. What truly amplified the power was the stench within the divine consciousness.

The stench, of course, came from when I kissed Thirteen Sister, coming in through her mouth. At the time, my consciousness was fluctuating, and I didn't pay attention to it.

Shen Yifei searched his mind but couldn't find the stench.

If we can't find it, let alone transfer it, it looks like we'll have to ask Thirteen Sister for help.

The thought of Thirteen Sister gave Shen Yifei a headache. It was a mix of truth and falsehood, and he couldn't tell which of her words were true and which were false.

In order to refine the Underworld King, Shen Yifei had no choice but to bite the bullet and call out, "Thirteenth Sister..."

The sound echoed throughout the Myriad Things Cauldron, and Thirteen Sister quickly arrived at his side, her eyes still alluring, followed by a little follower... Su Huan.

Fortunately, Liu Mengli didn't follow. It seems she hasn't fully recovered from using that Samsara Seal technique.

When Thirteen Sister saw the King of the Underworld in the alchemy furnace room, she knew that Shen Yifei had no way to deal with him.

"Young Master Shen, why are you calling me in such a hurry? Are you discussing an auspicious day to marry me?"

When Shen Yifei heard Thirteen Sister say "auspicious day," his head throbbed even more.

"Let's put the wedding on hold for now," Shen Yifei said, pointing to the blackened Hades statue in the alchemy room. "Take a look at this old thing first. The fire unicorn has been spewing fire at him for ages, and he hasn't even lost a single layer of skin."

Thirteen Sister approached the alchemy room and peered at the Underworld King through the barrier.

Upon seeing her, Hades launched into another tirade: "Thirteenth Sister! You treacherous, wicked servant! If I hadn't taken you in back then, you would have been torn to pieces by those evil spirits!"

Thirteen Lady covered her mouth and chuckled, "Lord Hades, you took me in just to seduce the Five Elements Demon God's inheritance, didn't you? Look, I've got him now. Pretty good mission accomplished, right?"

After saying that, Thirteen Sister turned to Shen Yifei and said, "Young Master Shen, you called me here just to let me see this old man act arrogantly?"

"Of course not." Shen Yifei took a step closer. "You gave me that kind of treatment last time, can't you give me that kind of treatment again?"

Thirteen Sister blinked: "What tone? I don't remember it."

"It was you, pretending to be a dried-up corpse, who spat a foul breath into my mouth..."

"Oh...back then...so the young master still thought I smelled bad..."

Thirteen Sister walked up to Shen Yifei, leaned close to his ear, and whispered, "Smell it, does it stink?"

Its fragrance is delicate and sweet, like that of a delicate orchid.

Shen Yifei took half a step back. "Stop with the nonsense. Let's get down to business."

Thirteen Sister stepped back, revealing a round fan in her hand. She gently shook it, and this time the fan surface depicted mandarin ducks playing in the water, lifelike and vivid.

She glanced at the King of the Underworld, who was roasted to a crisp in the alchemy room, and said slowly, "Young Master, that aura, didn't you experience it once and never forget it?"

"I can't forget it, it stinks terribly," Shen Yifei said honestly.

"It smells bad, but it's powerful."

"Yes, it's really powerful; it's what defeated Hades! But I don't know how to use it! I can't find it anywhere!"

Thirteen Sister took two steps closer, glancing seductively at Shen Yifei's lower body. "If you want to mobilize that energy again, you have to stimulate it first. There's only one way to stimulate that energy."

"What method?"

"Does Young Master Shen really want to bring out his potential?"

"I want to! Thirteen Sister, tell me quickly, what method is it?"

Thirteen Sister covered half her face with a round fan, revealing only her alluring eyes, looking shy: "If you want to arouse it, the only way is to sleep with me."

Shen Yifei almost thought he had misheard: "Go to bed."

"Yeah... go to bed, have a good sleep, make love, you don't even understand that? Besides, this isn't the first time for either of us, is it?"

Thirteen Sister removed the fan, her face serious, showing no sign of joking.

"Thirteen Sister, you've lied to me again!"

"Young Master Shen, I'm just a woman, would I use my body to deceive you? What could I possibly get from you? Don't you think I'm...?"

Shen Yifei quickly waved his hands, "No...no...Thirteenth Sister, I didn't mean it that way, I just thought this method was a bit special..."

Thirteen Sister walked over and gently nudged Shen Yifei: "Young Master, when have I ever lied to you?"

"You've lied to me countless times, haven't you?" Shen Yifei held up two fingers.

"I lied to you for your own good." Thirteen Sister's tone suddenly became more serious. "You want to manipulate that energy, but you can't. It's because you lack the stimulation of my temporal origin. With more stimulation, it will recognize you and submit to you!"

Shen Yifei looked at her. This woman was speaking half-truths, but he was truly helpless against the Underworld King in the alchemy room.

The Fire Qilin can't breathe anymore, and the Netherworld Cold Flame is useless. To refine it, we need something new.

"Okay!" Shen Yifei nodded. "Where to?"

Thirteen Sister waved her fan and smiled sweetly: "Come with me."

Thirteen Sister lived in a small courtyard on a mountain peak in the southwest corner.

When the courtyard gate opened, Shen Yifei was stunned.

The courtyard was covered with red silk, double happiness characters were pasted on the doors and windows, and two large red lanterns hung under the eaves.

A red carpet was laid on the bluestone path, leading directly to the main room. The door was wide open, and the room was brightly lit with candles. Red quilts and pillows were laid on the bed, and a pair of nuptial wine cups were placed at the head of the bed.

"Thirteenth Sister, what do you mean by this?"