Lin Yu had no choice, because refining this kind of pill required extremely strict control over the dosage.

He had never practiced it before, which is why he needed to test Feng Jiu to evaluate her and create the appropriate dosage.

And just as Feng Jiu was being used as a guinea pig by Lin Yu.

Yandu.

The Jiang family!

Inside the large courtyard house, a father and son were talking.

These are the core figures of the Jiang family, Jiang Yuan and his son Jiang Cheng!

"Yuan'er, you've come at the right time! More good news from Beiye! Our manpower has officially exceeded one million. Thirty years ago, Beiye was a weak force in the Nine Provinces. Through the development of your grandfather and me, two generations, who would have thought that we would become a strong army of one million! We can even overpower the Northwest!"

"Haha, now no one will dare to say that my Jiang family is a tiger father and a dog son. With the joint efforts of three generations, we are destined to surpass our predecessors!" Jiang Cheng was overjoyed upon receiving the report and laughed heartily.

Jiang Yuan nodded with a smile and gave a thumbs up, saying, "It's all thanks to Father's foresight. Right now, all the families think it's a peaceful and prosperous era, so they're cutting back on troops and personnel. It wasn't until this covert war started that they realized the importance of a strong army! Now, with the strength of our Jiang family, I think crushing the Feng Army is just around the corner!"

Jiang Cheng smiled and nodded, but then a look of worry appeared on his brow.

“Now our Northern Field Army is strong and well-equipped, but the military budget is becoming increasingly tight, especially recently. I acquired a batch of advanced weapons from the Russians, which has made logistics even more strained! Sigh!” Jiang Cheng looked troubled. He paused, then continued, “It’s a pity that the oil in Harbin hasn’t been extracted. Otherwise, once the oil field is operational, it would be incredibly lucrative, and I wouldn’t have to worry about money!”

Jiang Yuan smiled and said, "Dad, actually, I came here today to tell you some good news!"

"What good news?" Jiang Cheng asked curiously.

Jiang Yuan quickly replied, "Huang Haifeng from Qingyuan just called me and said the problem with the oil well has been resolved, and we can resume production now!"

"What? You're telling the truth??"

Jiang Chenghu's body trembled, and his eyes revealed immense joy!