I Transmigrated to the 1970S, but I Really Don’t Want to Be a Nasty Old Grandma

[Period drama + System + family life + no romance] After Lu Huihui, who lived in the twenty-first century, was unlucky enough to get hit by a car, she arrived in the 1970s, an era of shortages and hunger. Even worse, she had transmigrated into the body of a nasty old woman. She wanted to split up the family and live on her own, but was forced to bind herself to a villain System. With no other choice, she had to start living the life of a "nasty old woman." Her younger daughter wants to be with an educated youth? No way, she has to break them up. Her eldest daughter is hell-bent on giving her husband's family a son? No way, she can't stand that family. Her third son's wife is always competing with her sisters-in-law? No way, she has to set her straight. Her fourth son insists on becoming a live-in son-in-law? No way, she won't allow it. Ever since Lu Huihui bound herself to the villain System, her life has been truly colorful!