Chu Yuan's actions were very serious, such as cleaning the room, which is a necessary skill for a single person.

Now, it's finally time to put it to use.

"It's not too messy here, just a little cleaning will be enough."

As the room became cleaner and cleaner, the way Grandma Hua looked at Chu Yuan seemed to have changed a lot.

"Is this guy cleaning?"

"Is there something wrong with it? It's just a pharmacy NPC. Is there any quest? Why is it so tedious?"

"Did he find some mission?"

"How is that possible? I just tried to contact the old woman there, but there was no mission at all. Besides selling some medicines, it had no other functions."

"Then why is this guy cleaning?"

"Is it because you don't have money to buy medicine?"

"That's a bit pitiful."

"Ding! System prompt: Villager Granny Hua's favorability towards you has increased by 1 point. The current favorability level is 4."

Seeing that Grandma Hua’s favorability towards him had risen to 4, Chu Yuan nodded in satisfaction. As long as he could get two more points, the first task would be completed!

This is easy, but what is that old secret?

"Grandma Hua, what is moonlight grass used for?"

"Moonlight grass is a very common herb. Its main function is to awaken one's own life potential."

"Ordinary moonlight grass can only make people excited. Although this herb absorbs the power of moonlight and grows in an ultra-long environment, it itself has a very strong drying effect."

"There was a time when moonlight grass was used by some bored alchemists to make aphrodisiac drugs."

Aphrodisiac drugs?

The village chief wanted these things, and he seemed so anxious... Could it be...

The strange smile just appeared and was put away by Chu Yuan.

Moonlight grass, dryness, water from the Eight Yin Gathering Well, coldness, two materials that sound extreme, what are they for?

"But that's not the true use of Moonlight Grass. Its true purpose is to stimulate life potential. Adding Moonlight Grass to certain healing medicines can improve their quality. There are even rumors that Moonlight Grass can be used to refine forbidden medicines that can revive life."