The concubine is a man, and the illegitimate son of a divine physician has a spatial ability.

Upon hearing Sheng Yixuan's words, Yin Zijing's already pale and delicate face flushed crimson, like a peach blossom in full bloom in spring. Her large, bright eyes were now filled with shyness and timidity, like a startled fawn.

He leaned back slightly, his thin frame swaying gently as he said in a voice as soft as flowing water, "Your Highness, you are in too much of a hurry."

Sheng Yixuan's lips curled up slightly, revealing a rare gentle smile, and he said softly, "Doesn't Zijing want to marry into the Eastern Palace? I can't wait! Although our marriage is for political purposes, we are childhood sweethearts and have a deep affection for each other."

He paused, his gaze fixed intently on Yin Zijing, and continued, "Zijing, do you know? Since I met you, I haven't touched any other woman. It's been so hard to restrain myself."

Yin Zijing felt a little shy, so she quickly puffed out her chest and said, "Then Your Highness will have to work hard for a few more years. Serving the emperor before your body is fully developed can easily shorten your lifespan. Zijing wants to live a few more years."

And, thinking about it, all I want now is for me to come of age quickly and marry His Highness the Crown Prince.

Sheng Yixuan was teased by Yin Zijing and said with ill intent, "Oh~ Zijing has already thought about serving you in bed?"

For Zijing's sake, I will give it much consideration.

As Yin Jingyi watched Yin Zijin become increasingly feminine, almost indistinguishable from a young lady confined to her chambers, he didn't know whether to feel happy or worried. He could only comfort himself by thinking that this way, he could also protect himself...

Seeing Sheng Yixuan and Yin Zijin being so lovey-dovey, Yin Jingyi joked, "Alright, alright, there are outsiders here! You two should just keep your lovey-dovey behavior behind closed doors."

Yin Zijin quickly said, "His Highness the Crown Prince and I only see each other once in a long while. What's wrong with us being affectionate for a bit? If you feel like being affectionate, you can go to the next room and wait. I still need to catch up with His Highness the Crown Prince."

As Yin Jingyi walked out, he muttered to himself, "Zijin, we're family, how can you be siding with outsiders like this!"

After hearing Yin Jingyi's words, Yin Zijing quietly asked, "Your Highness, is this how you and my brother usually get along?"

Sheng Yixuan nodded and said, "That's how it is in private. As long as it doesn't cross the line, I give him that right."

Yin Zijing took a sip of hot tea, then, as if remembering something, quickly asked, "Your Highness, have you found what I asked you to find last time?"

Sheng Yixuan took the item out of his pocket, his tone softening: "I was going to give it to you more than a month ago, but then Father Emperor suddenly assigned me a task. The situation was urgent, so it was delayed. What do you think of this?"

Yin Zijing took the item from Sheng Yixuan's hand, examined it carefully, and nodded in satisfaction: "Not bad, compared to the rough white gauze, this weaving method is much finer."

Yin Zijin poured the hot tea in her hand onto it, and soon the water was absorbed: "Not bad, the penetration and absorption are also very good."

Seeing Yin Zijing smile happily, Sheng Yixuan's lips also curved into a smile. He said gently, "Zijing, I will continue to search for white gauze with better permeability, absorbency, and fineness than this."

And then there's Zijing, the cotton you mentioned. It's already widely cultivated in the Jiangnan region. However, the cost of transporting it to the north is too high, and the price is too expensive. It's really not suitable for widespread application.

Zijin, using it to make menstrual pads is too costly; I'm afraid it won't be widely adopted. Moreover, the Great Sheng Dynasty has strict social norms, and many women are very superstitious about menstruation, so they certainly wouldn't buy such items. Not to mention, many parents favor sons over daughters.

I understand Zijing's thoughts, and I hope she succeeds, but I also urge her to think it over carefully.