After Marriage Exchange, Stunning Beauty Becames The Group Favorite In Compound

Intro

[Swap Life + Dedication and Love for Work System - Book-Traveling Girl VS Reborn Girl]

Shen Yunshu traveled through a book, into a period novel with Shen Yunxiu as the heroine. In the book, Shen Yunxiu was reborn. The first thing she did after rebirth was to exchange marriages with her cousin. She planned to marry Meng Jue, the son of the director of the food factory, who liked her cousin, and her cousin married into the Ji family in the slum on her behalf. Unfortunately, Shen Yunshu was the heroine's cousin!

Shen Yunxiu didn't expect that she would be reborn in 1977. Since she was reborn, she definitely didn't want to marry Ji Huainan this time.
In her previous life, because of the engagement, she married into the Ji family for a good time, but she didn't expect that Ji's mother died that night. People in the slum said she was a nemesis. Not long after, Ji Huainan went on a mission again. Shen Yunxiu couldn't stand the loneliness and ran away with an educated youth who returned to the city, but was sold...

Until the moment of her death, she saw on TV how happy her cousin Shen Yunshu, who married Meng Jue, was now the wife of the richest man.Starting over again, Shen Yunxiu vowed to take away everything from her orphan cousin. Let's start with the marriage exchange...

Shen Yunxiu married Meng Jue as she wished, and Shen Yunshu also married into the Ji family for good fortune, but why the subsequent development was different from what she saw in her previous life. 

Why didn't Ji's mother die? She was still happy to help Shen Yunshu and Ji Huainan take care of the children? 

Why didn't Ji Huainan die, but transferred to become the captain of the criminal investigation team and repeatedly solved strange cases? 

Why did Meng Jue, who was supposed to be admitted to university, fail the exam three times, and even he, who was devoted to his wife, actually got together with his childhood sweetheart.