Why did Ren's personality become calm and wise after his rebirth?

Because Ren met Mr. Pei, he taught her literary skills and experienced her all-round strategy and mind.

1) let's take a look at the introduction of this article first: in previous lives, the so-called blood relatives told her that this was the greatest glory of her life as a woman. As a result, she and her sister turned against each other, making her mother cry and die young, and her father's blood spattered with arrows ... She was reborn in infancy and was no longer a pawn at that man's mercy! Let's see how she calculates people's hearts, uncovers people's skin and disappears into the invisible! The so-called glory is to protect the loved ones for a safe and smooth life. The so-called glory is to win a person's heart and never leave. Ren learned in her previous life that a person should be calm and wise.

2) First of all, I have to say that there is no bad backyard life in this house fight. The hostess's father is a person who likes romantic things but is not romantic, so Aunt Fang, the villain inside, is valued by any elder because of her younger brother's identity, but the hostess's father doesn't like her very much. In fact, the hostess likes her very much, so there is no story of "stepmother" in this article. This person's personality is like a fairy. I was a little weak from poisoning, a little neat, and attached great importance to the quality of life. The author also wrote in the book that the hostess is "not as smart as her, not as smart as her, not as smart as her, and even if she is smart and beautiful, no one has the same heart as Xiao Jingxi." This passage is a documentary summary of the role of the hostess. Men and women in the book are not in love at first sight, but belong to diamond cut diamond. They will meet talented people and be equal bosom friends, quoting Qi Mei's love. The woman doesn't depend much on the man, giving people a sense of equality. Women's happiness is earned by themselves.

3) The author's writing style can be said to be quite good, especially at the beginning. The description of the characters attracted Bian Xiao, but it was not so brilliant, but it felt real, and it didn't feel exaggerated and false. Many details were well described, so Bian Xiao read this book carefully.