Why did this weak doctor get married again?

After ten years, the weak doctor Qin Bai finally found the correct use of the golden finger on the wedding night in the bridal chamber to marry a wife and take concubines. A weak doctor who eats soft food is going to die of acidity!
This weak doctor is married again! ...
Until one day, when the strongest female sword fairy in the world came to Qin Bai for medical treatment and didn't pay, "What? Don't pay? That won't work, stay...