Making you a son-in-law is not about making you conquer the world.

Jiang Yunying stared at Lin Ping with an expression of utter disbelief. If he had used the excuse of giving her a massage to stay in bed, she might have actually gone along with it. But now, he had jumped off the bed in excitement over some well-known news, which was simply incredibly foolish.

"Husband, Yancheng is not a large area, and there isn't much fertile land. How can we get rich?" Jiang Yunying asked doubtfully, and she also withdrew her thought that she had almost fallen into the trap.

In his excitement, Lin Ping had no intention of consummating the marriage and instead asked, "Aren't those two thousand acres of inferior land on the north side of Jiangcheng considered large?"

Two thousand acres of farmland is an astronomical figure for ordinary people, but it is nothing to the city lord's mansion.

However, those two thousand acres of land are buried beneath a rock salt mine, and Lin Ping compared this land with Yancheng, so the answer is obvious.

"My lord, are you saying that there is salt buried underground in Yancheng?" Jiang Yunying asked excitedly.

Although she didn't understand business, she knew the potential value of rock salt mines. If there were rock salt mines underground in Yancheng, it would be a great help to the city lord's mansion.

"It seems that my wife only knows about rock salt mines..." Lin Ping felt helpless about Jiang Yunying's guess.

Putting aside whether there are rock salt mines underground in Yancheng, even if there are, Lin Ping shouldn't be so agitated.

After all, the rock salt mines in the north of Jiangcheng City are enough to feed the entire Daye for hundreds of years. They are inexhaustible. What they lack is not more rock salt mines, but a larger sales channel and a cheap transportation method.

"Husband, what's with that disdainful look on your face?" Jiang Yunying, with dark eyeliner, approached Lin Ping step by step, hating his mysterious manner the most.

Lin Ping immediately broke out in a cold sweat and quickly explained, "Although there are no rock salt mines underground in Yancheng, there is oil, which is more valuable."

Before his transmigration, Lin Ping was a poor student who was often teased by his classmates for "having a family fortune in minerals." As a result, he made a special effort to study mineral resources and naturally learned about the distribution of oil.

Naturally, it was known that Yancheng possessed abundant resources, which were virtually inexhaustible for an industry-undeveloped dynasty.

No wonder Lin Ping was so excited to give up the chance to consummate the marriage after hearing about Yancheng.

"Petroleum? Is it tasty?" Jiang Yunying looked like a foodie, thinking that petroleum was the same as rapeseed oil.

It's not that Jiang Yunying was ignorant, since the term "petroleum" comes from Shen Kuo's "Dream Pool Essays." Shen Kuo did not exist in this dynasty, nor did "Dream Pool Essays" exist, so naturally there was no such thing as "petroleum."

"It's not only delicious, it's also great to drink. If you cook it in a pot until it thickens, asphalt will appear, making it even tastier!" Lin Ping explained to Jiang Yunying with a sly look on his face. This explanation was quite vivid.

The primary function of petroleum is as a liquid fuel, but since there are no internal combustion engines now, it can only be used for direct combustion.

Lin Pingda could use the different boiling points of petroleum to roughly refine some kerosene to replace the current rapeseed oil lamps, which would not only increase brightness but also reduce oil fumes.

This revolutionary product is bound to quickly become popular throughout the Wu Kingdom, and even the entire Daye Dynasty. At that time, every household will be burning kerosene lamps, and nighttime life will be more fulfilling.

Thinking about this huge market, it's hard for Lin Ping not to be excited. How much money he can make is just a matter of a word from him.

In addition, the role of asphalt will also become apparent.

The highway Lin Ping had always dreamed of would finally appear, not only reducing the transportation costs of salt but also allowing him to collect tolls from merchants. He would then set up several important checkpoints along the highway, openly proclaiming the classic line, "This mountain is mine, these trees are mine, if you want to pass, leave your toll..."

Of course, Lin Ping wasn't a bandit, so the merchants could choose to take a detour, but they would have to consider it carefully, since the time and effort involved would far outweigh the toll.

Once asphalt is mass-produced, it can not only be used for road construction, but also for various buildings. For example, applying a layer of asphalt to the roof of a person's thatched house can prevent rain, and the embarrassing situation of "when it rains, it pours" will no longer occur.

This is absolutely a measure that benefits the country and its people!

"Husband, I suspect you're making a lewd move, but I can't find any evidence," Jiang Yunying said darkly, naturally intending to use force to find witnesses!

"You're murdering your husband!" Lin Ping screamed like a donkey being slaughtered as Jiang Yunying ripped his heart out.

Then all that could be heard were "bang, crash, ah!" sounds as Lin Ping's fragile little body was hit from head to foot of the bed, and then back again.

Terrified, Lin Ping slunk away, completely oblivious to Jiang Yunying's crazy hints. He mistakenly believed that sleeping with her would result in a beating, and dared not mention consummating their marriage for the next three months.

The next morning, Lin Ping was awakened by urgent knocking on the door.

He was naturally displeased, given his extremely grumpy mornings, and yelled, "Did someone in your family die? Are you in such a hurry to be reincarnated?"

However, without Lin Ping's permission, the door had already been opened, and Jiang Yunying sneered, "That's right, my husband is dead..."

Lin Ping's face turned deathly pale with fright. He hurriedly threw off the covers and quickly put on his clothes, completely forgetting his good habit of sleeping naked.

Jiang Yunying covered her blushing face and whispered, "Doesn't my husband know any shame?"

"It's alright, it's alright. We're an old married couple anyway, so I won't lose out." Lin Ping smiled awkwardly, afraid of being beaten up by Jiang Yunying.

“Yun Ying is not blaming her husband for being rude, but rather… mocking him for being small.” Jiang Yun Ying glanced at Lin Ping with disdain, uttering a startling statement.

Lin Ping's face turned bright red; he didn't know where to put himself. Being mocked by his wife for his physical defect—how could they ever play happily together again…?

"Some things can't be judged by appearances alone..." Lin Ping began to explain with increasing weakness, unable to speak fluently. Even he felt that explaining was just covering up, and covering up was the truth.

"Husband, come with me to the military camp." Jiang Yunying took Lin Ping's hand and walked out of the room, completely unconcerned about what had just happened.

If she really fell in love with Lin Ping, it was because... she was blind.

After last night's extremely unfriendly exchange, Jiang Yunying roughly understood that Lin Ping wanted to help the City Lord's Mansion. Therefore, there was no need to pamper him all the time; it was time for him to play his role.

"I'm tired, I want my wife to carry me..." Lin Ping said shamelessly, pouting. He originally wanted to be carried, but he felt that the scene was a bit too much for his eyes.

What else could Jiang Yunying do? Her husband was like a child, so she had to carry him on her back, which actually sped up the journey considerably.

Lin Ping shamelessly rested his head on Jiang Yunying's fragrant shoulder, fully enjoying her presence, without mentioning the struggle for the city lord position.