National Preceptor, Please Behave Yourself [Matriarchy]

A cool-hearted heroine who is carefree, easygoing, and takes things as they come.

A male lead who is calculating toward others and madly devoted to the heroine.

The heroine is a transmigrator, and her old flame makes an appearance.

One-on-one romance.

An alternate history with no basis for historical research.

Blurb:

After a car accident, Jiang Yan transmigrates into the body of Wen Chi, daughter of the Minister of Rites in the Daye Dynasty, where men and women have switched places and women hold the higher status. After her initial shock and excitement, Jiang Yan gradually adjusts to life there. She figures that she might as well make the best of it. At least this place treats women well, and she has no shortage of food or drink. And so she stays in someone else's body for three years.

Wen Chi knows that there is another "self" inside her body. She is unconventional, carefree, and bold, very different from Wen Chi's own rigid and reserved nature.

Wen Chi quietly observes her for three years. Then one day, she discovers that the other woman appears on the fifteenth of every month. Her visits become increasingly frequent, and whenever she appears, Wen Chi's body no longer belongs to her...

After nurturing her soul for three years, Jiang Yan finally stabilizes it. So one night, she takes control of the body, goes to the Star-Gazing Pavilion for a drink, and can't resist flirting with someone... Before long, she has stirred up a "nemesis" she can neither avoid nor escape.

After they marry, Jiang Yan puts her arms around the Imperial Preceptor, who is every bit as graceful and radiant in public, and thinks to herself that it was all the alcohol's fault.

The male and female leads remain devoted to each other throughout. In the end, only the heroine's soul will remain, and the male lead has always known that the two women are different.

If you don't like this, please read with caution.

Theme: A little drinking is delightful, but too much... and you lose your virtue