Ming Jing hadn't been joking. The Ming Family's business included many mines across different war zones. In the end, the goods were taken directly by the various forces. Some paid for them; others genuinely didn't.
Seeing that Ming Jing was still worrying about her and Wang Yue, Yu Manli smiled and said, "My brother said we don't need the kind of rich mines you have. We can use mines that have already been mostly dug out, or mine shafts that are difficult to work. Those mines won't attract attention, and with our new technology, we can extract what we need without anyone noticing."
Hearing what Yu Manli wanted, Ming Jing frowned. "Those mines are a maze underground. Even with new technology, they don't have much value left. Wouldn't buying them just be a waste?"
Yu Manli shook her head. "That's not for the Ming Family to worry about. If the Ming Family is willing to help, my brother can increase the amount of supplies he transports for you. We won't limit it to the few goods we handle now. We can even help transport the anti-inflammatory medicine the Japanese have been keeping an eye on."
As she spoke, Yu Manli gave Ming Jing a meaningful look. She was warning Ming Jing that the Japanese had already set their sights on the anti-inflammatory medicine she was preparing to transport elsewhere.
That was why the Japanese were inspecting the Ming Family's cargo so strictly. Shipping it was extremely difficult, and it was time to find someone else to help.
In fact, Wang Yue had deliberately offered to help. It wasn't that he wanted to help the protagonist; he wanted to help Yan'an.
If Ming Jing fell, it would trigger a chain reaction that brought Ming Lou down too. Yan'an's forces in Shanghai