I'm accumulating points in the cultivation world.

Soon, Tang Doudou exchanged 100 points for 100 jin of Longming Sand, but the taste was indeed hard to describe.

As soon as Old Master Li pushed open the door, he smelled an indescribable odor. "My good disciple, what have you gotten yourself into? It stinks!"

Wei Chenyi, who was behind Li Lao, quickly covered his nose with his hand.

“This is Longming Sand, I plan to use it to make the Marrow Cleansing Fluid,” Tang Doudou said quickly.

"Marrow Cleansing Fluid?" Elder Li immediately became interested. "Do you have the formula?"

"Yes! It's just that I've been spending too much money lately, so Master will just give me a little more drizzle so I can have some fun!"

"You!" Old Li said, casually taking out a storage ring and handing it to Tang Doudou.

Tang Doudou smiled and took five. "Master, these are enough! However, I have an idea. We shouldn't price this Marrow Cleansing Liquid too high, so that more people can have the opportunity to obtain it and thus embark on the path of cultivation."

"What's the difference between this Marrow Cleansing Liquid and the Marrow Cleansing Pill?" Old Li asked, looking at Tang Doudou.

"The Marrow Cleansing Liquid can wash away the impurities of a spiritual root, turning a mixed spiritual root into a single spiritual root, while the Marrow Cleansing Pill only cleanses the marrow and removes impurities; it has no effect on the spiritual root," Tang Doudou explained.

"Interesting. This is the first time I've seen a pill that's effective against spiritual roots. If we could monopolize this, wouldn't that be..."

"Master overestimates me. Even I couldn't save it!" Tang Doudou said with a smile. "This is a pill formula. Apart from Longming Sha, the rest are all very common herbs. There aren't even any spiritual herbs needed!"

Old Li looked at it and nodded, "Yes, the most important one here is Long Mingsha."

As he spoke, Old Li touched the Longming Sand, then brought it to his nose, and then put it in his mouth to taste it. "What exactly is this Longming Sand?"

Seeing Old Li's series of actions, Tang Doudou thought that if Old Li knew, he would be disgusted for a while, so she quickly said, "This thing was found in the dragon's nest, it is something secreted from its skin."

Old Li nodded, then looked at Tang Doudou with a puzzled expression, "Dragon? You've seen dragons?"

Tang Doudou shook her head. "I've never seen it before. I found it in a secret place."

"A secret realm? That's possible!" Old Li said, sniffing again. "I never imagined that the golden, cloud-riding dragon in my mind would secrete this stinky stuff!"

Wei Chenyi, who was standing to the side, also stepped forward and looked at it and smelled it, just like Old Li did.

The system was already laughing so hard it was breathless!

“Hehe, aren’t all animals the same?” Tang Doudou quickly said.

“Indeed, animals all have a foul smell. But once we run out of this Dragon Bright Sand, won’t we be unable to make Marrow Cleansing Liquid anymore? Why don’t we make less so we can sell it for a longer period of time?” Old Li said with a smile.

"Don't worry, there are plenty there. I can get them anytime I need."

"So, the place you went to might really be Dragon Island! True dragons have always been legendary creatures, and I really hope to see their true faces! Disciple, take me with you if you have the chance!"

Tang Doudou didn't expect Old Li to be so curious, but since the lie had already been told, she could only make up for it with another lie.

"Later, I'll definitely take you next time!" Tang Doudou said with a smile.

"I want to go too!" Wei Chenyi chimed in, joining in the fun.

"Okay! Why don't we try to see if we can make the marrow cleansing fluid?" Tang Doudou quickly changed the subject.

When the topic of alchemy came up, Elder Li immediately became excited.