Underworld entries, starting with ghost stories.

"Good brother, have some grapes!" "My lord, I'm hungry!"

"Hey! Come and eat!"

Red maple leaves danced in the wind in the garden, rising and falling like waves, and swaying like flames.

A heated tent swayed by the waterside pavilion, and inside, seemingly unaffected by the autumn leaves, springtime still lingered.

Wu Qing lay on a comfortable old chair, holding a book, with Xiao Qing occasionally feeding him grapes beside his head, while his wife Xiao Bai began to forage for food.

Enjoying this place, I have no thoughts of the Sui Dynasty.

"Good brother, you really like reading!" Xiaoqing put away the grapes and saw him pick up a book again and turn to the next page.

"There's never enough knowledge," Wu Qing said earnestly.

Originally, he was just a high school student, but the sudden possession of a human body caught him completely off guard.

As a high school student, suddenly appearing in such a chaotic situation, I was truly ignorant of physical labor, unable to distinguish between the five grains, and without any family ties.

Now that he has finally gained a foothold, he knows that whether it is literature or martial arts, he must specialize in one of them to the point that ordinary people cannot match him in order to stand out from the crowd.

High school students are actually in the period when their memory is strongest and their minds are at their best, but what they learn is all theoretical knowledge.

Now that he has the opportunity, he naturally wants to accelerate his learning and truly enrich himself.

"Good brother, stop reading, I'm hungry too." Xiaoqing snuggled up to him affectionately.

"You two are never enough to feed!" Wu Qing had no choice but to put down his book and hug her.

The warm tent swayed, the autumn maples undulated, the sun was high in the sky, and beautiful shadows swayed.

The third act of the predestined relationship has been going on for more than half a year.

For the past six months or so, apart from practicing medicine and reading, Wu Qing has spent the rest of his time being pestered by the two sisters, endlessly.

That morning, it was drizzling outside.

Wu Qing took the oil-paper umbrella and prepared to go to the pharmacy.

"My lord, it's suddenly gotten quite cold outside. Please wear more clothes." Xiaobai took a long robe, moved forward, and draped it over his shoulders.

She then moved in front of him and helped him tie his robe.

Wu Qing looked down. Xiao Bai had a delicate oval face, and her arched eyebrows were slightly furrowed with worry.

He reached out and touched Xiaobai's pretty face, smiling, "What's wrong? Didn't sleep well again last night?"

"I don't know why! Sometimes, when I close my eyes, I worry that when I wake up, my husband won't be there anymore." Xiaobai stretched out her hands and hugged his waist.

"Why would you think that?" Wu Qing put down the oil-paper umbrella and embraced his wife.

"I don't know either. Sometimes, I dream that my husband isn't by my side, or I can't even remember the days when he was around. Then I feel empty inside and scared."

"I will always be here!" Wu Qing held her slender and delicate body. "Even if I'm not here, I will be somewhere, and I will eventually be with my wife."

Xiao Bai nestled against him, raising her exquisitely beautiful face: "If Xiao Qing and I hide some things from you, will you be angry?"

Wu Qing shook his head: "My wife, perhaps you haven't been hiding anything from me."

He picked up Xiaobai by the waist, placed it on the couch, and bent down.

"My lord!" Xiaobai gasped, "You still have to go to the shop."

"It's not a big deal. Let your husband love you, then get some rest and don't think too much."

Before long, the silk robe fell to the ground, and the fragrant couch swayed.

The autumn rain outside the window was getting heavier. Xiaoqing poked her head in from under the eaves and said, "Oh, it's already started so early? It's raining outside, so why is the sun shining inside?"

"Xiaoqing, why don't you come in too?"

"No way!" Xiaoqing giggled outside, twirling the embroidered beauty fan in her hand. "I'm not like my sister, who's head over heels in love with you, feeling like three autumns have passed since we last met."

"Xiaoqing, you used the idiom incorrectly!"

"Where did you use it wrong?" Xiaoqing turned around, tapped the window frame with her small round fan, and said, "Fuck you!"

When Wu Qing arrived at the pharmacy, it was much later than usual.

More and more people are getting their medicine filled.

In his spare time, he would take out a notebook and doodle on it with a fine charcoal pencil. Occasionally, he would put down the pencil, look at the words "carbon source, nitrogen source, inorganic salt, growth factor" on the notebook, and fall into deep thought.

Carbon sources can be grain juice, and nitrogen sources can be bean paste, along with salt, wood ash, or vegetable juice.

I went into the backyard and looked at the many bottles and jars drying under the eaves. After examining each one, I made many modifications.

He has tried many different proportions and steps, and has begun to see some remarkable results.

This is the ancient method of making penicillin, which is essential for traveling to ancient times. Of course, theory is one thing, and experimentation is another.

And he has now achieved some results.

After consulting numerous ancient texts, he learned that penicillin had actually been used in ancient times. However, it was all from natural sources such as the mold on tofu, moldy paste, and moldy mustard greens.

The inability to mass-produce and preserve them for long periods means they are difficult to use on the battlefield.

Tailors in the Tang Dynasty often used moldy paste to treat cuts on their hands. However, they only knew the method but not the reason behind it. They knew that this would prevent the wound from becoming infected and make it heal faster, but that was all.

He thought to himself, "When I get back, I can only use this makeshift method to produce some penicillin for my troops in case of emergency."

"If one day I can rise to a position second only to the emperor, or even... then I will further establish more laboratories, popularize them, and help more people."

He sighed softly and shook his head.

Unless one gains real power, even with the knowledge of a time traveler, many things will be difficult to implement.

Although the Tang Dynasty was prosperous, even in the relatively open Tang Dynasty, when the prime minister ordered the people to kill locusts due to a locust plague, he would be attacked by a large number of officials and the Qingliu faction.

They believed that the locust plague was the will of Heaven, and that eradicating the locusts would be defying Heaven's will and would bring even greater disaster.

Not to mention the Song, Yuan, Ming, and Qing dynasties, which later developed the idea of ​​"governing the world with half of the Analects".

In more ancient times, Confucianism did have a certain advanced function.

However, when many people rely on the exclusive veneration of Confucianism and promote the idea of ​​the interaction between heaven and humanity, they have already separated scholars and the suffering common people into two different worlds.

Many people, no matter how many books they read, cannot improve people's lives.

Even the later imperial examinations, which selected officials based on their poetry and classical knowledge, were just like him when he first traveled to the end of the Sui Dynasty—lazy and ignorant of basic agricultural knowledge.

In the evening, after helping an elderly man get his medicine, he didn't charge him.

I closed the pharmacy and went outside with an umbrella. Autumn rain is always like this, not heavy, but never-ending.

As I was walking down the street, suddenly, the rain curtain parted ahead.

A burly monk, dressed in a patchwork yellow robe, strode in, holding a staff.

He was walking in the rain, yet not a single drop of rain fell on his monk.

"Is this Doctor Qing? This humble monk greets you!" The monk was tall and imposing, blocking his way like a mountain, preventing him from passing.

"May I ask your Dharma name, Master, and what is the meaning of your name?" Wu Qing stared intently at him.

"Boundless magical power, capable of splitting seas and collapsing mountains! This humble monk is Fahai!"