Yu Jiao returned the greeting and called him brother-in-law in a graceful manner.

Cui Mubai was also in the flower hall just now and had a deep impression of Yu Jiao. There were very few women who could advance and retreat and deal with a powerful eunuch like Cheng Ying with ease, not to mention that Yaozhen's third sister was still so young.

Yu Jiao picked up the pulse pillow and placed it on the table. Cui Mubai naturally put his hand on it. Yu Jiao put a handkerchief on his wrist before placing her fingers on his pulse.

After Yu Jiao finished taking her pulse, Cui Mubai withdrew his hand and asked, "Is Yaozhen in any serious condition? What should we pay attention to in our daily life? Please give me some advice, Third Sister."

Seeing that he was concerned about her health first when he spoke, Liu Yaozhen smiled slightly and felt warm in her heart.

Yu Jiao said, "Big sister is fine, she's just often too worried and anxious. She should relax more and take care of less things. If she relaxes her mind, her body will get better."

Yu Jiao paused, "Brother-in-law, you feel a little cold, but you often feel cold and have chills?"

Hearing Yu Jiao say this, Liu Yaozhen's heart tightened, fearing that Yu Jiao would point out that she couldn't get pregnant because there was something wrong with Cui Mubai's body.

Cui Mubai didn't understand what she said, so he smiled and said, "So the third sister is really a female doctor. I didn't quite believe what people said before." He nodded again, "My limbs are always cold all year round. I am really afraid of cold. It may be because I fell into an ice cave when I was young. Since then, I always feel cold in my body and my hands and feet are always cold."

Yu Jiao asked, "Didn't your brother-in-law see a doctor or take any medicine?"

Cui Mubai smiled faintly and said, "It's a root cause of the disease that I contracted when I was young. I took medicine to treat it for a few years when I was young. Although I was a little afraid of cold later, I didn't get sick much, so I didn't pay much attention to it."

Yu Jiao nodded, "But this is not good for your health after all. I'll prescribe some prescriptions for my brother-in-law to help him recover."

Cui Mubai did not refuse, but smiled and bowed, saying, "Then I'll have to trouble you, Third Sister."

Seeing that Yu Jiao did not point out the truth directly, but instead used the excuse of fear of cold to help Cui Mubai recuperate, Liu Yaozhen was very grateful in her heart, and she felt more and more that Yu Jiao was a smart girl. No wonder her mother and Yao Yu liked her very much and were willing to treat her well.

Mrs. Liu changed the subject and chatted with Cui Mubai about some ordinary things, asking him if he was busy with official duties recently and whether everything for the New Year at home was prepared. It seemed like she had asked Cui Mubai to come over just to chat with her son-in-law about family matters.

After all, this was the backyard. Even if he was Liu Yaozhen's husband, he was still an outsider and could not stay here for long. Cui Mubai sat for a while and responded to Mrs. Liu's questions one by one. Then he stood up, bowed, and said he would go to the front yard to wait for Liu Yaozhen. He was very polite and measured in his actions.

After Cui Mubai left, Liu Yaozhen asked Yu Jiao anxiously, "Your brother-in-law... Is the problem really with your brother-in-law?"

Yu Jiao nodded, "My brother-in-law has kidney yang deficiency. Although my question may be a little rude and beyond the rules, please answer it truthfully, sister."

Liu Yaozhen nodded quickly.

"When my elder sister and my elder brother-in-law have sex, does my elder brother-in-law often have back pain afterwards? And the duration is also very short?"

As soon as Yu Jiao said this, Liu Yaozhen's face suddenly turned red, and it seemed that heat was coming out of her face. Even Mrs. Liu beside her looked unnatural.

Women are always too ashamed to talk about such things and avoid speaking directly about them, let alone an unmarried girl like Yu Jiao.

If Liu Yaozhen was just talking privately in front of Madam Liu, the mother and daughter wouldn't necessarily feel so embarrassed.

The room was silent for a while before Liu Yaozhen pulled her handkerchief and nodded awkwardly, "My husband often complains about back pain, but he practices boxing every day. I thought he was tired from practicing boxing..."

The following words were even more vague, "The time... isn't long, and we're not really keen on this... this matter..." When Liu Yaozhen said this, her face turned red enough to bleed.